~ chicken-core (master) /NEWS
Trap16.0.023- Core libraries4 - All modules specified by the R7RS small language are now available in5 the core system.6 - The internal string representation has been converted to UTF-8,7 making strings fully UNICODE capable.8 - The (chicken blob) module has been replaced with (chicken bytevector),9 containing R7RS compatible bytevector operations. Bytevectors are10 now fully equivalent to SRFI-4 u8vectors.11 - The read-syntax for blobs (`#${...}') has been removed. Bytevectors12 can be read using `#u8(...)' or `#u8"..."'.13 - `char-name' now allows removing a named character definition.14 - `open-input-file' and `open-output-file' accept a file encoding,15 supported are currently UTF-8 (the default) and Latin-1 (ISO-8859-1).16 - `file-read', `file-write', 'set-pseudo-random-seed!' and `random-bytes'17 require a bytevector argument and do not accept strings.18 - `process-fork', `process-run', `process' and `process*' return now19 a process-object instead of a PID, use process record accessors to20 retrieve exit-status and input/output ports. `process-wait' and21 `process-signal' accept either a PID or a process object as22 argument.23 - File-locking operations in the (chicken file posix) module now use the24 flock(2) system call, operator over whole files, are thread-safe and25 use a simpler interface. `file-test-lock' has been removed.26 - `read-u8vector', `read-u8vector!' and `write-u8vector' have been27 removed, use the equivalent operations from the (chicken io)28 module instead.29 - Added `read-bytevector', `read-bytevector!' and `write-bytevector'30 to the (chicken io) module.31 - Removed `set-port-name!', use the SRFI-17 setter for `port-name'32 instead.33 - Added `port-encoding' to the (chicken port) module.34 - `make-input-port' and `make-output-port' take their optional35 port methods as keyword arguments now.36 - Added `make-binary-input-port' and `make-binary-output-port'.37 - Locatives on strings are now indexed by code-point, not byte.38 - `symbol-escape' now also controls whether symbols are printed in39 escaped ("|...|") mode or not.40 - Symbol printing is stricter in deciding when symbols should be escaped41 or not.42 - The following primitives have been moved from (chicken base)43 to R7RS modules:44 - `exact-integer?`, `exact-integer-sqrt?', `vector-copy!',45 `make-parameter', `call/cc', `open-input-string',46 `open-output-string', `get-output-string', `input-port-open?',47 `output-port-open?', `parameterize' and `port?' moved from the48 (chicken base) to the (scheme base) module.49 - `case-lambda' moved from (chicken base) to (scheme case-lambda).50 - `features' moved from (chicken platform) to (scheme base).51 - `write-string' moved from (chicken io) to (scheme base) and its52 signature changed to the R7RS one.53 - `define-record-type' moved to (scheme base) and is generative,54 to be compliant with R7RS.55 - `syntax-error' has been removed from (chicken syntax) and is now a56 macro and part of (scheme base).57 - `record-instance?' and `make-record-instance' accept non-symbolic58 type specifiers to support generative record types.59 - The new (chicken number-vector) module now provides a superset of60 SRFI-4, including 64 and 128-bit complex number vectors, the `srfi-4'61 module is still available but exports only those procedures as are62 specified in SRFI-4.63 - The second (optional) parameter for `load' and `load-relative' may be64 either an environment or an evaluation procedure.65 - The module aliases `srfi-0', `srfi-6', `srfi-9', `srfi-11', `srfi-23',66 `srfi-39' and `srfi-98' have been removed (all of these are covered by67 R7RS).68 - The modules `r4rs', `r5rs', `r4rs-null' and `r5rs-null' have been69 renamed to `(scheme XXX)'.70 - Hexadecimal escape sequences in strings and extended symbols must be71 terminated by the `;' character, following R7RS.72 - The `#ci'/`#cs' read syntaxes have been removed, use73 `#![no-]fold-case'74 markers instead.75 - `include' and `include-relative' accept multiple filenames,76 `include-ci'77 has been added.78 - Added `include-path' to (chicken platform) module.79 - Added `number-vector-data' to (chicken memory representation) module.80 - `define-library' has been extended to support the `export-all'81 specification.82 - The platform-identifier "mingw32" has been renamed to "mingw".83 - Library procedures that return paths now always convert them to84 contain forward slashes, 'make-pathname' always uses "/" for path85 separation.86 - Added `expand1' to (chicken syntax) module for expanding a macro87 only once, also added the ",x1" command to "csi" for this.88 - Added the (chicken version) module.89 - "delete-file*" and "delete-file" now behave consistently with90 broken symlinks.91 - number->string now accepts bases up to 36, where before it only accepted92 bases up to 16 (thanks to Diego A. Mundo)93 - string->number now handles ambiguous cases involving the character "i"94 in bases higher than 18 more consistently.9596- Syntax expander:97 - `syntax-rules' attempts to better support tail patterns with ellipses98 (#1736).99100- FFI changes:101 - Strings and symbols passed to foreign code are not copied, they are102 passed directly, any mutations done by external code will be visible on the103 Scheme side.104 - Complex numbers, C structs and unions can now be passed directly as105 arguments and returned as results when interfacing to C code.106107- Tools108 - The compiler and interpreter option `-r5rs-syntax' has been renamed to109 `-r7rs-syntax' and does not disable extended symbol syntax ("|...|")110 anymore.111 - The "feathers" debugger has been removed from the core and is now112 available as an egg.113 - The `set-describer!' procedure has been removed from the `csi' module.114 - The "csc" program now accepts tool flags (e.g. -compiler, -cc etc)115 which have paths with spaces in them without requiring the user to116 double-quote them. As a consequence, it no longer accepts programs117 with space separated flags for tool arguments (e.g.118 "csc -cc 'gcc -debug'" etc). If this is desired, write a short119 shell script which calls the tool with your flags.120 - `chicken-install' now locks the cache directory during121 egg-installation.122 - Added component type `installed-c-object' to egg format.123 - The `csc-options' and `link-options' configuration clauses in egg124 specifications now allow `custom-config' forms to produce arbitrary125 computed compiler and linker options.126 - Added scripts/smoke-test.sh to automate basic testing of chicken-core127128- Build system129 - A "configure" script is now used to prepare the sources for building130 everything. This simplifies the use of "make", allows more elaborate131 platform sanity checks and follows conventions.132 - On Windows the minimal "mingw" build is not supported anymore, a POSIX133 shell and the basic sete of command-line utilities is now required134 (formerly the "mingw-msys" build). Chris Wellons "w64devkit" is now135 the recommended toolchain. The platform identifier "mingw-msys" has136 been renamed to "mingw".137 - The system can now be built with "zig cc" as a C compiler/linker138 replacement.1391405.4.0141142- Security fixes143 - CVE-2022-45145: Neutralize possible escape characters in egg metadata144 to avoid arbitrary OS command injection during egg installation,145 reported by Vasilij Schneidermann who also provided the necessary146 patches to mitigate this problem.147 - The runtime option "-:b" has been removed, as it was deemed too148 insecure to be able to drop to a REPL from the CLI of any program.149 - Runtime option processing has been hardened: processing now stops on150 the first non-runtime option or after "-:", whichever comes first.151152- Core libraries153 - Fix type declarations for `file-select` (reported by Anton Idukov).154 - Change `create-temporary-{file,directory}` fallback code on Windows to155 use %USERPROFILE%/AppData/Local/Temp if that environment variable is set.156 - Added new thread-safe API for POSIX signals ("make-signal-handler",157 "signal-ignore" and "signal-default") and deprecated the existing one.158 - Added "make-finalizer" to execute finalizers in a thread-safe159 manner.160 - Added weak pairs to (chicken base), with similar behaviour to Chez Scheme.161 - Added "locative-index", kindly contributed by John Croisant.162 - Added "fp*+" (fused multiply-add) to "chicken.flonum" module163 (suggested by Christian Himpe).164 - Added flonum-specific hyperbolic functions and their inverse to165 "chicken.flonum" module (suggested by Christian Himpe).166 - The `process-execute` procedure now sets argv[0] to the unmodified167 filename. Previously, the directory part would be stripped.168 - Added support for embedded strings and characters in SRFI-4 vector169 literals.170 - read-with-source-info is now documented and officially supported,171 from the (chicken syntax) module. read/source-info is still exported172 from the undocumented internal (chicken compiler support) module, but173 using it from there is deprecated.174 - Added "export/rename" to (chicken module) for renaming identifiers on175 export.176 - The values of the TMPDIR, TMP and TEMP environment variables are no177 longer memoized (fixes #1830).178 - Condition objects produced by procedures that change errno now have179 an `errno' property.180 - Deprecated "chicken-home" and added "include-path" in the181 chicken.platform module.182 - Irregex has been updated to upstream 0.9.11 plus an additional fix183 for sre->string. The 0.9.11 release fixes a few problems related to184 utf-8 handling (which should not affect CHICKEN) and expands the185 definition for the 'whitespace character set to include vertical tab,186 carriage return and form feed.187188- Tools189 - Fix scripts generated by `chicken-install` on Windows to not quote `>>`190 when echoing into files which would result in empty egg-info files191 (reported and fixed by Jani Hakala).192 - The -R option for csi and csc now accepts list-notation like193 e.g. (srfi 1). Fixes #1809, reported by Wolfgang Corcoran-Mathe.194 - Fix shell quotation in options passed from csc to other tools.195 Fixes #1302, reported by Xin Wang.196 - The -prelude and -postlude options for csc work properly again.197 - chicken-install now retrieves the latest egg version when198 instructed to install an egg that's already installed (#1802).199 - When `location' is specified in setup.defaults, chicken-install200 will consider two location layouts when looking for eggs:201 <location>/<egg> and <location>/<egg>/<version>.202 - chicken-install: Fix #1684 (programs that specify203 component-dependencies should build-depend on their import204 libraries).205 - chicken-install now caches eggs installed from local locations.206 - chicken-install now accepts the -location command line option207 (short: -l) to specify local directories where to get egg sources208 from.209 - chicken-install now gives a warning on unexpected properties (#1492).210 - chicken-install now uses a directory specific for cache metadata211 (VERSION, STATUS and TIMESTAMP files) to avoid collisions with source212 files on case-insensitive file systems like on MacOS (#1753, reported213 by Kon Lovett).214215- Syntax expander216 - When passing a module as an environment to eval, correctly resolve217 identifiers in macro expansions (#1295 reported by Caolan McMahon).218 - Internal definitions honor rebindings of core special forms (#1132).219 - Globally defining an identifier previously bound to a macro now fully220 shadows the macro (#1166, reported by Michele La Monaca).221222- Compiler223 - When emitting types files, the output list is now sorted, to ensure224 deterministic build output (fixes #1783, reported by "ss2").225226- Build system227 - Fix compiler warnings about zero-sized `memset` (reported by Claude Marinier).228 - Disable broken test-create-temporary-file on Windows (reported by "jjhoo").229 - Drop use of XCODE_... environment variables on MacOS.230 - Add build directory to rpath on MacOS so that the test suite picks up correct231 libchicken, even if CHICKEN is already installed (thanks to Christian Himpe).232 - Default "cc" on BSD systems for building CHICKEN to avoid ABI problems233 when linking with C++ code.234235- Runtime system236 - Make line numbers available for error output and during syntax expansion237 in the interpreter as well as the compiler.2382395.3.0240241- Core libraries242 - In (chicken process-context posix), the setters for current-user-id,243 current-effective-user-id and current-group-id now check that the244 new user/group value is a fixnum instead of blindly passing it on245 to the C implementation (which would cause bogus user ids to be set).246 Fixes #1787, thanks to Christopher Brannon.247 - The srfi-17 module now exports the `getter-with-setter` and `setter`248 procedures, not just the set! macro (thanks to Lassi Kortela)249 - Fix hang in chicken-install -update-db on Windows (thanks to Mark250 Fisher for reporting and Jani Hakala for debugging and patch).251 - Fixed an inadvertant error during error reporting in the `numerator`252 and `denominator` procedures when passed non-finite flonums (#1730).253 - Fixed a bug where optimisations for `irregex-match?` would cause254 runtime errors due to the inlined specialisations not being255 fully-expanded (see #1690).256 - Irregex has been updated to upstream 0.9.10, which fixes behaviour257 of irregex-replace/all with positive lookbehind so all matches are258 replaced instead of only the first (reported by Kay Rhodes), and259 a regression regarding replacing empty matches which was introduced260 by the fixes in 0.9.7 (reported by Sandra Snan). Also, the261 http-url shorthand now allows any top-level domain and the old262 "top-level-domain" now also supports "edu" (fixed by Sandra Snan).263 Also, a problem was fixed with capturing groups inside a kleene264 star, which could sometimes return incorrect parts of the match.265 Finally, "bol" handling was fixed to handle newlines consistently266 so that multiple matches don't overlap (reported by Sandra Snan).267 - current-milliseconds has been deprecated in favor of the name268 current-process-milliseconds, to avoid confusion due to naming269 of current-milliseconds versus current-seconds, which do something270 quite different. Also, its definition has been tweaked to271 guarantee that it returns the time since process startup. On272 Windows, it will now return sane values after 24 days of uptime.273 On UNIX, the values returned will be precise to the millisecond274 instead of rounded down to the nearest second at startup (which275 would result in erratic startup times).276 - The default mode for files created by `file-open' has been changed277 to 0666 (plus whatever change the effective umask applies), rather278 than 0744 (see #1698).279 - Fixed type database entry for "log" with second arg (fixes #1725).280 - Made topological-sort behave better when dependency target is listed281 multiple times by concatenating dependencies (fixes #1185).282283- Module system284 - Reexported macros now work when the reexporting module redefines285 identifiers from the original (fixes #1757, reported by Sandra Snan).286 - When using "except" in "import" to omit reexported macros,287 they are really not imported (#1771, reported by Sandra Snan).288289- Runtime system290 - Sleeping primordial thread doesn't forget mutations made to291 parameters in interrupt handlers anymore. (See #1638. Fix292 contributed by Sebastien Marie)293 - A feature corresponding to the word size is available294 regardless of the word size (#1693)295 - The default maximum heap size on 64-bit platforms is now the296 theoretical maximum addressable memory size (#1675). Use -:m297 if you would like to override this at run-time.298 - Deprecated C_(a_i_current_)milliseconds in favor of299 C_(a_i_)current_process_milliseconds to match the Scheme-level300 deprecation of current-milliseconds.301 - Officially deprecated C_pair() in favor of C_a_pair(); it has302 been deprecated for years.303 - At program cleanup, finalizers are only forced when the live304 finalizer count is non-zero305 - The symbol `srfi-87` has been added to the list of built-in306 feature identifiers.307 - Garbage collection algorithm has been changed to reduce thrashing308 when heap is almost full, by growing the heap sooner. A new -:hf309 option was added to tweak when heap growth should occur.310 - Added `-:R' runtime option to initialize rand() state311 deterministically (should help with #1650 and benchmarking).312313- Compiler314 - Statically linked programs using built-in libraries are supported315 again (fixes #1788, a regression from 5.2.0).316 - Avoid re-using argvector when inline rest operations are being317 used in CPS calls (#1703, thanks to Jakob L. Keuze).318 - An `emit-types-file` declaration has been added, which corresponds319 to the compiler flag of the same name (#1644, thanks to Marco Maggi320 for the suggestion).321 - Fixed a bug caused by a bad interaction between two optimizations:322 argvector rest ops would be applied even if a procedure already got323 its rest arg consed at the call site (#1756, thanks to Sandra Snan).324325- Build system326 - Fix build with tcc.327 - Fix a few tests on Windows so the suite passes once again.328 - Auto-configure at build time on most platforms. Cross-compilation329 still requires PLATFORM to be set, and it can still be provided330 manually, but it is no longer required in the common case.331 - Fix Linux to MingW cross-compilation (#1768, thanks to Théo Cavignac)332 - The `clean' target for make now also removes build configuration files.333 - The `distclean' target for make has been removed (now `clean' does what334 `distclean' used to do).335336- Tools337 - Fix a problem with egg installation scripts on Windows, where the338 platform was not correctly identified, depending on the shell used339 during installation of the core system (thanks again to Mark Fisher340 for reporting and helping in finding the culprit).341 - Fixed a bug in chicken-install (#1744) that would cause342 `Error: (string->number) bad argument type: #!eof` in some cases.343 - If chicken-install has a program prefix/suffix, it now writes to a344 cache directory matching its program name (#1713, thanks to Alice Maz)345 - Fixed bug in chicken-install regarding variable quotation on UNIX-like346 systems which prevented installation into paths with spaces (#1685).347 - Fixed a similar bug in chicken-install for paths with spaces on mingw348 and mingw-msys (#1727, thanks to Josh Helzer for reporting and Vasilij349 Schneidermann for the patch).350351- Module system352 - Fixed a memory leak when calling (import) multiple times in a row353 on the same module (#1772; reported by "plugd" on IRC).3543555.2.0356357- Core libraries358 - Fix `memory-statistics` by returning semi-space bytes and used359 semi-space bytes like the documentation says. Old implementation360 returned full-heap size and (full-heap - used-semi-space).361 - for-each and map now behave consistently in compiled and interpreted362 mode, like in SRFI-1. They now stop when the shortest list is363 exhausted instead of raising an exception (fixes #1422).364 - There is now a srfi-88 module which contains just the three365 procedures from the (chicken keyword) module defined by the SRFI.366 - A feature identifier named "srfi-88" is now registered.367 - The procedures `record-printer` and `set-record-printer!` and a368 corresponding SRFI-17 setter have been added. These deprecate369 `define-record-printer` which isn't a "real" definition (see #1294).370 - On Windows, `decompose-directory` no longer crashes when a drive371 letter is present in the supplied path string.372 - irregex-replace[/all] have been fixed for empty matches, so they373 will no longer drop characters and ignore the replacement (#1661).374 - Irregex has been updated to upstream 0.9.7, which also improves375 how empty matches are treated in irregex-fold and irregex-split.376377- Runtime system378 - Quoted empty keywords like ||: and :|| are now read like prescribed379 by SRFI-88 in the corresponding keyword mode. Symbols containing380 quoted empty prefixes or suffixes like ||:abc and abc:|| will be381 read correctly as symbols now (fixes #1625, thanks to Andy Bennett).382 - IEEE floating point negative zero is now properly handled: it can383 be read, written and distinguished by eqv? and equal?, but not =384 (fixes #1627, thanks to John Cowan).385 - ##sys#check-exact and its C implementations C_i_check_exact and386 C_i_check_exact_2 have been deprecated (see also #1631).387 - When garbage collector is manually invoked from a finalizer, raise388 an error instead of hanging forever (fixes #1586).389 - define-record-type will now give an error if the constructor390 definition refers to field that's not listed elsewhere (see #1633)391 - Added new -:hu option to set the memory usage low watermark392 percentage at which the heap should be shrunk, and changed the393 calculation to actually reflect this (see #1379).394395- Compiler396 - Fixed a bug in lfa2 pass which caused "if" or "cond" nodes to be397 incorrectly unboxed if the "else" branch had a flonum result type398 (#1624, thanks to Sven Hartrumpf)399 - Inline files no longer refer to unexported foreign stub functions400 (fixes #1440, thanks to "megane").401 - In some cases, rest argument lists do not need to be reified, which402 should make using optional arguments and case-lambda faster (#1623).403 - Values from foreign types which have an argument or return value404 converter are no longer inferred to have the Scheme type which405 corresponds to the raw foreign type, which was incorrect (#1649).406407- Module system408 - Trying to export a foreign variable, define-inlined procedure or409 define-constant variable gives a friendly error instead of saying410 the variable doesn't exist (fixes #1346).411 - When modules are registered, they no longer pollute the global412 environment with imports made in that module (fixes #1548)413414- Tools415 - The new "-module-registration" options causes module registration416 code to always be included in the program, even when it has also417 been emitted as a separate file (for example with "-J").418 - chicken-install now correctly checks server response code to avoid419 interpreting error response bodies (like 404, 500) as Scheme code.420 - chicken-install now follows HTTP redirects when downloading eggs.421 - chicken-install will now change to the correct drive before422 attempting to change to the egg directory (fixes #1647).4234244255.1.0426427- Core libraries428 - Symbols ending or starting with a colon are now always pipe-quoted429 when written by `write` to ensure they can be read back with a430 different keyword-style setting.431 - Read-write invariance of special symbols starting with #! other432 than #!key, #!rest or #!optional is now preserved (#1572).433 - When using (set-file-position!) on a port, its EOF status will now434 be reset.435 - In (chicken file posix), the values of perm/irgrp, perm/iwgrp,436 perm/ixgrp, perm/iroth, perm/iwoth and perm/ixoth are now correctly437 defined (they were all for "usr"; #1602, thanks to Eric Hoffman).438 - In (chicken file posix), `file-truncate` now accepts also accepts439 port objects, for consistency with other file procedures.440 All such procedures from (chicken file posix) now have the correct441 types in types.db (fixes #1609, thanks to Robert Jensen).442 - Add the system-config-directory and system-cache-directory procedures443 in the chicken.platform module. These procedures follow the XDG444 specification and also give sensible results on Windows.445 - Fix get-environment from (chicken process-context) to raise an446 error when passed #f instead of segfaulting.447 - Qualified symbols (##foo#bar style) are no longer encoded by a448 byte prefix inside the symbol name. This ensures read-write449 invariance of symbols which start with a low-byte character450 (fixes #1077, except for keywords, which start with NUL bytes).451 - Fix a missing export (list->s64vector) in SRFI-4.452453- Runtime system454 - Keywords are now distinct types; they are not a subtype of symbols.455 - Use arc4random on FreeBSD (thanks to Tobias Kortkamp and gahr)456 - Removed the unused, undocumented (and incorrect!) C functions457 C_delete_symbol_table and C_set_symbol_table.458 - Continuations which discard additional values beyond the first no459 longer accept multiple values via direct invocation after being460 captured through `call/cc`, only via `values` (revert of #1390,461 due to #1601)462 - SRFI-4 vector predicates, reference, set and length procedures463 should now be faster in tight loops as they're inlineable (#757).464 - Keywords are now interned in a separate keyword table, not in the465 standard symbol table. This brings full read-write invariance466 for symbols (they can now also start with NUL bytes). Keywords467 no longer have plists. Fixes #1576.468 - Increased the "binary compatibility version" to 11.469470- Compiler471 - Restored optimized implementations of =, +, -, /, * and quotient in472 fixnum-arithmetic mode (fixes #1604 mostly; thanks to "chickendan").473 - Added an optimization pass for reducing the amount of boxing of474 intermediate floating point values, enabled by the "-lfa2" compiler475 option.476 - The "lfa2" pass is now enabled at optimization levels 2 or higher.477478- Module system479 - When you try to import the module you are currently defining into480 itself, an error will be raised. This prevents an infinite loop in481 the compiler when later trying to import that same module (fixes482 #1506, thanks to Kristian Lein-Mathisen).483484- Foreign function interface485 - Improved hygiene in FFI macro expansions, which means you don't486 have to import "scheme" or "(chicken base)" for them to work.487488- Type system489 - It is now possible to quote free variables in type declarations,490 which acts as shorthand for `forall' (thanks to "megane")491492- Tools493 - csi now uses (system-config-directory) to find csirc and falls back to494 $HOME/.csirc when needed.495 - chicken-install now uses (system-config-directory) to find a user496 defined setup.defaults file ; it also uses (system-cache-directory)497 for its egg cache directory when the CHICKEN_EGG_CACHE environment498 variable is not defined.499500- Egg specifications501 - Allows "cond-expand" and "error" forms in egg specification files.502 - Add "c-object" and "object" properties to link separately compiled503 C objects into CHICKEN code.5045055065.0.0507508- Runtime system509 - Added support for the full numeric tower, including various new510 procedures taken from the "numbers" egg. All calculations will511 now return exact numbers where possible, so code relying on flonums512 being returned may need to be changed if rational numbers do not513 provide the desired performance.514 - Port directionality has been generalized from a simple input/output515 flag to a bitmap, to allow for multidirectional ports.516 - Weak symbol GC is faster, simpler, and can now collect all517 unreferenced symbols instead of a maximum of 997 per major GC.518 - The -:w option has been removed; symbols are now always collected.519 - Increased the "binary compatibility version" to 9.520 - Continuations which discard additional values beyond the first now521 also accept multiple values via direct invocation after being522 captured through `call/cc`, not just via `values` (#1390)523 - Removed the deprecated C_locative_ref and C_mutate2 C functions.524 - The trace buffer no longer holds on to thread objects, allowing them to525 be garbage collected sooner (#1356, thanks to Kristian Lein-Mathisen)526 - On Cygwin and MinGW, the "build-platform" now corresponds to the527 tool chain used (gnu, clang, unknown) like on *nix, while the528 software-version is now "cygwin" or "mingw32" instead of "unknown".529 This also means the features list will now contain the tool chain530 on all platforms.531 - Symbols starting with #% are no longer treated specially and need532 to be quoted with pipes. This makes the "%" sign available for use533 in custom/user-defined sharp-sign read syntax.534535- Compiler536 - Fixed an off by one allocation problem in generated C code for (list ...).537 - The "-scrutinize" compiler option has been removed.538 - The "-module" compiler option (aliased as "-m") now expects a module name.539 - The generated C output of the compiler is now deterministic: it540 will be bit-for-bit identical when compiling the same Scheme file541 with the same version of the compiler.542 - the "-consult-type-file" and "-emit-type-file" options have been renamed543 to "-consult-types-file" and "-emit-types-file", respectively.544545- Tools546 - The new "-link" option to csc allows linking with objects from extensions.547 - The new "-libdir" option to csc allows overriding the runtime library548 directory.549 - The ambiguous "-l<libname>" option for csc has been removed (#1193).550 - Removed deprecated "-n" shorthand for "-emit-inline-file" from csc.551 - Removed "chicken-bug" tool.552553- Core libraries554 - Removed support for memory-mapped files (posix), queues555 (data-structures), binary-search (data-structures), scan-input-lines556 (utils), group-information (posix) object-eviction (lolevel), and557 compile-file (utils). These are now available as eggs.558 - Removed the srfi-1, srfi-13, srfi-14, srfi-18, srfi-69, and utils559 units. These are now available as eggs.560 - Added the `executable-pathname` procedure for retrieving a path to561 the currently-running executable.562 - Removed all support for SWIG.563 - Removed interrupts-enabled declaration specifier.564 - `sleep` now suspends the current thread when threading is enabled,565 otherwise it sleeps the process. The new `process-sleep` procedure566 in unit posix can be used to sleep the process unconditionally.567 - `with-error-output-to-port' from the ports module has been renamed568 to the more common `with-error-to-port', and `with-error-to-string'569 has been added for completeness (thanks to Michael Silver).570 - A new `make-bidirectional-port' procedure has been added to the571 ports unit that will combine separate input- and output- ports into572 a single bidirectional port.573 - New `input-port-open?` and `output-port-open?` procedures have been574 added for testing whether a port is open in a specific direction.575 - An `include-relative` form has been added to the (chicken base) module.576 This works like `load-relative` but for textual inclusion.577 - Keywords are now always written in "portable" style by WRITE, so578 that the reader's keyword style doesn't need to match the writer's.579 - The environment variable `CHICKEN_PREFIX` has been removed.580 - Added the `glob->sre` procedure to the irregex library.581 - Removed the `get-host-name' and `system-information' procedures.582 These are available in the "system-information" egg.583 - Removed the `eval-when`, `select` and `ensure` macros. These are584 available in the "miscmacros" egg.585 - Removed the require-extension-for-syntax macro.586 - Renamed bit-set? to bit->boolean because of swapped argument order587 with respect to SRFI-33 and SRFI-60, which was confusing (fixes588 #1385, thanks to Lemonboy).589 - file-{read,write,execute}-access will now raise an exception when590 the file doesn't exist or some other non-access related problem is591 detected (fixes #1386, thanks to Vasilij Schneidermann).592 - `change-file-mode` was renamed to set-file-permissions! and SRFI-17593 generalized set! support has been added for `file-permissions`.594 This procedure now also accepts a file descriptor or a port.595 - `file-permissions` now returns one value: the permission integer.596 - `read-file` has been renamed to `read-list`.597 - `read-all` was dropped, as `read-string` with #f as its NUM argument598 is equivalent.599 - `read-lines` and `read-all` no longer accept a string naming a file,600 only ports.601 - The procedures for random numbers have been reimplemented;602 access to system-specific entropy is available, together with a reasonably603 good pseudo random number generator (WELL512).604 - `glob` now returns an empty list for non-existent or inaccessible605 directories, instead of erroring out.606 - `file-copy' and `file-move' have been renamed to `copy-file' and607 `move-file', for consistency with `delete-file' and `rename-file'.608 - `rename-file' now refuses to overwrite an existing file unless an609 optional "clobber" argument is provided.610 - The `r4rs` module no longer exports `eval`, which was not in R4RS.611 - `process`, `process*` and `process-execute` now expect lists of the form612 (("NAME" . "VALUE") ...) instead of the previous (("NAME=VALUE") ...)613 as their environment argument.614 - `repository-path` is now a parameter containing a list of strings instead615 of a string, as the search path for libraries can now contain multiple616 directories.617 - `file-read-access?`, `file-write-access?` and `file-execute-access?` have618 been renamed `file-readable?`, `file-writable?` and `file-executable?`619 into the (chicken file) module.620621- Module system622 - The compiler has been modularised, for improved namespacing. This623 means names from the compiler should not leak out into the compiled624 program's (macro) namespace anymore.625 - The core units have been converted to modules under the "chicken"626 namespace.627 - Added support for list-style library names.628 - The "use" and "use-for-syntax" special forms have been removed629 in favor of "import" and "import-for-syntax" to reduce confusion.630 - Module imports are now lexically scoped: identifiers provided by631 an (import ...) inside (let ...) won't be visible outside that let.632 - Modules implementing an interface can now correctly export extra633 identifiers (bug reported by Martin Schneeweis, fix by "megane").634635- Syntax expander636 - Removed support for (define-syntax (foo e r c) ...), which was637 undocumented and not officially supported anyway.638 - Removed support for normal "lambda" forms as syntax transformers,639 which has been deprecated since 4.8.0.640 - define and friends are now aggressively rejected in "expression641 contexts" (i.e., anywhere but toplevel or as internal defines).642 - define-record and define-record-type now create record types643 which are tagged with the module in which they're defined, so644 predicates no longer return #t for records with the same tag645 defined in another module. This tag is now also available under646 an identifier that matches the record type name (fixes #1342).647 - `include` now splices included expressions in the context in which648 the inclusion appears and does not treat the expressions as toplevel649 expressions by default.650651- Eggs management652 - Egg-installation and building has been completely overhauled.653 - .meta + .setup files have been merged into a single declarative654 ".egg" file.655 - More static checks for egg descriptions, simplified generation656 of OS-specific build + install commands that is (hopefully)657 more practical for package maintainers.658 - Egg sources are cached locally to reduce download and rebuild659 times.660 - Dropped many obscure or unimportant options and features from661 `chicken-install`: (`-keep-installed`, `-reinstall`, `-proxy`,662 `-no-install`, `-username`, `-password`, `-init`, `-deploy`,663 `-keep-going`, `-scan`, `-csi`, `-show-depends`, `-show-foreign-depends`,664 `-prefix`.665 - Added new "-from-list" option to chicken-install.666 - Eggs can now be installed and located in multiple directories,667 using the `CHICKEN_REPOSITORY_PATH` +668 `CHICKEN_INSTALL_REPOSITORY`669 environment variables.670 - Static compilation of eggs is now fully supported and static671 versions of compiled eggs are available by default.672 - In a statically built chicken, the egg-tools ("chicken-install", "...-status",673 "...-uninstall") are still available, but only support static compilation674 of eggs.675676- Foreign function interface677 - The foreign type specifier "ssize_t" is now accepted, and "size_t"678 arguments now only accept positive integers. Return values of679 type size_t are no longer truncated on 32-bit platforms.6806816824.13.0683684- Security fixes685 - CVE-2017-6949: Remove unchecked malloc() call in SRFI-4 constructors686 when allocating in non-GC memory, resulting in potential 1-word687 buffer overrun and/or segfault (thanks to Lemonboy).688 - CVE-2017-9334: `length' no longer crashes on improper lists (fixes689 #1375, thanks to "megane").690 - CVE-2017-11343: The randomization factor of the symbol table was691 set before the random seed was set, causing it to have a fixed value692 on many platforms.693694- Core Libraries695 - Unit "posix": If file-lock, file-lock/blocking or file-unlock are696 interrupted by a signal, we now retry (thanks to Joerg Wittenberger).697 - char-ready? on string ports now also returns #t at EOF, as per R5RS;698 in other words, it always returns #t (thanks to Moritz Heidkamp)699 - Unit srfi-4: Fixed typo that broke SRFI-17 generalised set! syntax700 on s8vectors (thanks to Kristian Lein-Mathisen).701 - Large literals no longer crash with "invalid encoded numeric literal"702 on mingw-64 (#1344, thanks to Lemonboy).703 - Unit irregex: Fix bug that prevented multibyte UTF-8 character sets704 from being matched correctly (Thanks to Lemonboy and Chunyang Xu).705706- Runtime system:707 - The profiler no longer uses malloc from a signal handler which may708 cause deadlocks (#1414, thanks to Lemonboy).709 - The scheduler no longer indirectly hangs on to the old thread710 when switching to a new one, which caused excessive memory711 consumption (#1367, thanks to "megane").712 - C++ programs no longer fail with a symbol lookup error when713 compiled with debugger support (-d3 or -debug-info).714715- Syntax expander716 - Renaming an identifier twice no longer results in an undo of the717 rename (fixes #1362, thanks to "megane").718719- Build system720 - Fixed broken compilation on NetBSD, due to missing _NETBSD_SOURCE.721 - Fixed compilation on DragonflyBSD due to no feature macro support722 in its standard C library (thanks to Markus Pfeiffer).723724- Compiler725 - The scrutinizer no longer uses 'fixnum as the type for fixnums726 that might not fit into a fixnum on 32-bit architectures.727728- Foreign function interface729 - Correctly calculate memory requirements of Scheme objects produced730 from foreign types with "const" qualifiers, avoiding memory731 corruption (#1424, thanks to Vasilij Schneidermann and Lemonboy)732 - Do not read beyond temporary stack buffer, which could lead to733 a crash when returning from a foreign callback (#1428).7347354.12.0736737- Security fixes738 - CVE-2016-6830: Fix buffer overrun due to excessively long argument739 or environment lists in process-execute and process-spawn (#1308).740 This also removes unnecessary limitations on the length of741 these lists (thanks to Vasilij Schneidermann).742 - CVE-2016-6831: Fix memory leak in process-execute and743 process-spawn. If, during argument and environment list744 processing, a list item isn't a string, an exception is thrown,745 in which case previously malloc()ed strings weren't freed.746 - CVE-2016-9954: Irregex has been updated to 0.9.6, which fixes747 an exponential explosion in compilation of nested "+" patterns.748749- Compiler:750 - define-constant now correctly keeps symbol values quoted.751 - Warnings are now emitted when using vector-{ref,set!} or one752 of take, drop, list-ref or list-tail with an out of range index753 for vectors and proper lists of a definitely known length.754 - The scrutinizer will no longer drop knowledge of the length of a755 vector. It still drops types of its contents (which may be mutated).756 - Fixed incorrect argvector restoration after GC in directly757 recursive functions (#1317).758 - "Direct" procedure invocations now also maintain debug info (#894).759760- Syntax expander761 - DSSSL lambda lists have improved hygiene, so they don't need762 the chicken or scheme modules to be imported in full (#806).763 - The let-optionals* macro no longer needs "quote", "car" and "cdr"764 to be imported and bound to their default values (#806).765766- Runtime system:767 - C_locative_ref has been deprecated in favor of C_a_i_locative_ref,768 which is faster because it is inlined (#1260, thanks to Kooda).769 - The default error handler now truncates very long condition770 messages (thanks to Lemonboy).771 - Weak symbol GC (-:w) no longer drops random symbols (#1173).772 - The number of arguments to procedures, both via "apply" and direct773 invocation, are now limited only by the C stack size (#1098).774 - "time" macro now shows peak memory usage (#1318, thanks to Kooda).775 - Avoid crashes in ffi callbacks after GC (#1337, thanks to cosarara).776777- Core libraries:778 - Irregex has been updated to 0.9.5, which fixes matching of all "bow"779 occurrances beyond the first with irregex-fold (upstream issue #14).780 - Keywords are more consistently read/written, like symbols (#1332).781 - SRFI-39: When jumping out of a parameterized dynamic extent,782 "parameterize" now remember the actual values, so when jumping back783 in, they are restored (fixes #1336, thanks to Joo ChurlSoo).784 This was a regression caused by the fix for #1227.785786- Tools:787 - "chicken-install"788 - When installing eggs in deploy mode with "-keep-installed", eggs789 under the prefix won't unnecessarily be reinstalled (#1144).790 - Added new option "-no-install-deps" which inhibits automatic791 installation of dependencies, useful with "-prefix" (#1298).7927937944.11.0795796- Security fixes797 - Specialisation rules for string-{ref,set!}, bit-set?798 and move-memory no longer use unchecked C functions which could799 result in undefined behaviour, including buffer overruns (#1216).800801- Platform support802 - CHICKEN now supports the Linux X32 ABI (thanks to Sven Hartrumpf).803804- Tools805 - Feathers now has a more neutral color scheme and larger font size.806 - With the -dir option, feathers can now correctly find source code.807808- Runtime system:809 - The calling convention of CPS procedures has been changed to810 use "argument vectors" instead of C calling convention.811 - The C API of C_values(), C_do_apply() and how to invoke CPS812 functions has changed. The C_procN() macros have disappeared.813 The manual example in "Accessing external objects" for C_values814 has been updated. See also the "numbers" egg for examples on815 how to support pre- and post-4.10.1 CHICKENs simultaneously.816 - Apply hack is no longer used; the limitation of 128 arguments817 has been lifted for platforms which had no apply hack.818 - Increased the "binary compatibility version" to 8.819 - Delivery of signals in other OS-level threads is now dealt with820 in a more robust way (#1232) (thanks to Joerg Wittenberger).821 - Compiled programs with large literals won't crash on startup (#1221).822 - Comparisons of closures now behave in a stable way, whether or not823 the code was compiled with the -no-lambda-info option (#1041).824 - The signal handling code can no longer trigger "stack overflow" or825 "recursion too deep or circular data encountered" errors (#1283).826827- Compiler:828 - Specializations on implicit "or" types like "number" or "boolean" now829 work, removing the requirement for the inferred types to match830 declared types exactly. Specializations are matched from first to831 last to resolve ambiguities (#1214).832 - Compiler rewrites for char{<,>,<=,>=,=}? are now safe (#1122).833 - When requesting to emit import libraries that don't exist, the834 compiler now gives an error instead of quietly continuing (#1188).835 - Don't silently truncate huge literals (thanks to Claude Marinier).836837- Core libraries838 - try-compile from setup-api cleans up temporary output files (#1213).839 - SRFI-18: thread-join! no longer gives an error when passed a840 thread in the "sleeping" state (thanks to Joerg Wittenberger)841 - SRFI-18: mutex-lock! will not set ownership of mutexes when842 passed #f as the owner (#1231), not disown a mutex from owner if843 locking fails for timeout and not keep the last thread which held844 a mutex until the next lock (thanks to Joerg Wittenberger).845 - SRFI-39: When a parameter's "guard" procedure raises an exception,846 "parameterize" now correctly resets the original values of all847 parameters (fixes #1227, thanks to Joo ChurlSoo).848 - Irregex has been updated to 0.9.4, which fixes severe performance849 problems with {n,m} repeating patterns (thanks to Caolan McMahon).850 - Unit "posix": The following posix procedures now work on port851 objects: file-stat, file-size, file-owner, file-permissions,852 file-modification-time, file-access-time, file-change-time,853 file-type and all procedures using file-type. These are:854 regular-file?, symbolic-link?, block-device?, character-device?855 fifo? and socket?.856 - Unit "posix": When "file-close" is interrupted it will retry,857 to avoid leaking descriptors (thanks to Joerg Wittenberger).858 - Unit "data-structures": alist-{update[!],ref} were made consistent859 with srfi-1 in the argument order of comparison procedures.860 - Unit "lolevel": locative-ref has been fixed for locatives of u32861 and s32vectors (thanks to Joerg Wittenberger for pointing this out).862 - string->number now signals exceptions if passed a bad base instead863 of segfaulting (#1272; reported by "Tilpner" on IRC).864865- Tools866 - A debugger is now available, known as "feathers", which allows867 basic source-level debugging of compiled Scheme code.868 - A statistical profiler has been added, enabling sampling-based869 runtime profiling of compiled programs.870 - "chicken-install"871 - When installing eggs in deploy mode, already satisfied872 dependencies aren't reinstalled every time (#1106).873 - "chicken-uninstall"874 - -prefix and -deploy options were added, matching chicken-install.875 - "chicken-status"876 - -prefix and -deploy options were added, matching chicken-install.877 - The -sudo and -s options for chicken-install and chicken-uninstall878 now honor a "SUDO" environment variable (thanks to Timo Myyrä).879880- Syntax expander881 - Mixed internal define/define-values are now correctly ordered, so882 later defines can refer to earlier define-values (#1274).8838844.10.0885886- Security fixes887 - CVE-2014-6310: Use POSIX poll() on Android platform to avoid888 potential select() buffer overrun.889 - CVE-2014-9651: substring-index[-ci] no longer scans beyond string890 boundaries.891 - CVE-2015-4556: string-translate* no longer scans beyond string892 boundaries.893894- Core libraries895 - alist-ref from unit data-structures now gives an error when passed896 a non-list, for consistency with assv/assq/assoc.897 - Unit tcp now implicitly depends on ports instead of extras.898 This may break programs which don't use modules and forgot to899 require extras but use procedures from it.900 - SRFI-13: fix string-copy! in cases source and destination strings'901 memory areas overlap (#1135).902 - SRFI-1: Check argument types in lset and list= procedures (#1085).903 - Fixed another, similar bug in move-memory! for overlapping memory.904 - Fixed broken specialisation for move-memory! on pointer types.905 - Fixed broken specialisation for irregex-match-num-submatches.906 - Fixed bug in make-kmp-restart-vector from SRFI-13.907 - Removed deprecated implicit expansion of $VAR- and ~ in pathnames.908 The ~-expansion functionality is now available in the909 "pathname-expand" egg (#1001, #1079) (thanks to Florian Zumbiehl).910 - normalize-pathname has been simplified to avoid adding trailing911 slashes or dots (#1153, thanks to Michele La Monaca and Mario Goulart).912913- Unit srfi-4:914 - write-u8vector has been made more efficient (thanks to Thomas Hintz).915 - read-u8vector has been made more efficient (thanks to Andy Bennett916 for pointing this out and testing an improvement).917918- Unit lolevel:919 - Restore long-lost but still documented "vector-like?" procedure (#983)920921- Unit "files":922 - normalize-pathname no longer considers paths starting with ".//"923 as absolute (#1202, reported by Haochi Kiang).924925- Unit "posix":926 - set-file-position! now allows negative positions for seek/cur (thanks927 to Seth Alves).928 - file-mkstemp now works correctly on Windows, it now returns valid929 file descriptors (#819, thanks to Michele La Monaca).930 - create-directory on Windows now creates all intermediate931 directories when passed #t as second parameter.932933- Runtime system:934 - Removed several deprecated, undocumented parts of the C interface:935 C_zap_strings, C_stack_check, C_retrieve, C_retrieve_proc,936 C_retrieve_symbol_proc, C_i_foreign_number_vector_argumentp,937 C_display_flonum, C_enumerate_symbols938 - Removed several deprecated and undocumented internal procedures:939 ##sys#zap-strings, ##sys#round, ##sys#foreign-number-vector-argument,940 ##sys#check-port-mode, ##sys#check-port*941 - SIGBUS, SIGILL and SIGFPE will now cause proper exceptions instead942 of panicking (thanks to Joerg Wittenberger).943944- Module system945 - Allow functor arguments to be optional, with default implementations.946 - Fixed a bug that prevented functors from being instantiated with947 built-in modules.948 - Fixed generation of import libraries for instantiated functors949 (#1149, thanks to Juergen Lorenz).950951- Syntax expander952 - define-values, set!-values and letrec-values now support full lambda953 lists as binding forms954 - cond expands correctly when a constant is used in combination with =>955 (thanks to Michele La Monaca)956957- C API958 - Removed deprecated C_get_argument[_2] and959 C_get_environment_variable[_2] functions.960 - C_mutate2 has been deprecated in favor of C_mutate961 - chicken.h can be included in C++ programs in strict C++11 mode962 without compiler errors on Linux (thanks to "Izaak").963964- Foreign function interface965 - The foreign type specifier "scheme-pointer" now accepts an optional966 C pointer type (thanks to Moritz Heidkamp and Kristian Lein-Mathisen).967 - Type hinting for foreign-primitives now allows returning multiple968 values when no return type has been specified.969970- Compiler971 - Fixed an off by one allocation problem in generated C code for (list ...).972973- Build system974 - MANDIR was renamed to MAN1DIR and TOPMANDIR was renamed to MANDIR975 in order to comply with standard Makefile practice in UNIX.976 - INCDIR was renamed to CHICKENINCDIR, and now derives from977 INCLUDEDIR, which defaults to $(PREFIX)/include978 - BINDIR, LIBDIR, SHAREDIR, INCLUDEDIR, MANDIR, MAN1DIR, DOCDIR,979 CHICKENINCDIR and CHICKENLIBDIR will now also be taken from980 the environment, if present (like PLATFORM, DESTDIR and PREFIX).981982- Tools983 - "csc"984 - On Cygwin, -static now works again (thanks to Michele La Monaca)985 - "chicken-install"986 - When using chicken-install -retrieve, and an error occurs during987 retrieval (or the egg doesn't exist), the egg's directory is988 now properly cleaned up (#1109, thanks to Alex Charlton)989 - "chicken"990 - The -r5rs-syntax option did nothing; this has been fixed.9919924.9.0993994- Security fixes995 - CVE-2014-3776: read-u8vector! no longer reads beyond its buffer when996 length is #f (thanks to Seth Alves).997 - CVE-2013-4385: read-string! no longer reads beyond its buffer when998 length is #f.999 - CVE-2013-1874: ./.csirc is no longer loaded from the current directory1000 upon startup of csi, which could lead to untrusted code execution.1001 (thanks to Florian Zumbiehl)1002 - CVE-2013-2024: On *nix, the qs procedure now single-quotes everything1003 instead of relying on a blacklist of shell characters to be escaped.1004 On Windows, it properly duplicates double-quote characters. (thanks1005 to Florian Zumbiehl)1006 - CVE-2013-2075: Use POSIX poll() in other places where select() was1007 still being used. (thanks to Florian Zumbiehl and Joerg Wittenberger)1008 - CVE-2012-6122: Use POSIX poll() on systems where available. This avoids a1009 design flaw in select(); it supports no more than FD_SETSIZE descriptors.10101011- Core libraries1012 - Fix subvector when the TO optional argument equals the given vector1013 length (#1097)1014 - Unit extras now implicitly depends on ports. ports no longer1015 implicitly depends on extras. This may break programs which don't1016 use modules and forgot to require ports but use procedures from it.1017 - Support has been added for the space-safe R7RS macro "delay-force".1018 - Export file-type from the posix unit (thanks to Alan Post).1019 - SRFI-4 s8vectors now work correctly in compiled code on PowerPC and ARM.1020 - thread-join! now works correctly even if the waiting thread was1021 prematurely woken up by a signal.1022 - unsetenv has been fixed on Windows.1023 - The process procedure has been fixed on Windows.1024 - Nonblocking behaviour on sockets has been fixed on Windows.1025 - Possible race condition while handling TCP errors has been fixed.1026 - The posix unit will no longer hang upon any error in Windows.1027 - resize-vector no longer crashes when reducing the size of the vector.1028 - Distinct types for boolean true and false have been added to the1029 scrutinizer.1030 - Fixed bugs in string-trim-right, string-index-right and1031 string-skip-right, from SRFI-131032 - read-line no longer returns trailing CRs in rare cases on TCP ports (#568)1033 - write and pp now correctly use escape sequences for control characters1034 (thanks to Florian Zumbiehl)1035 - posix: memory-mapped file support for Windows (thanks to "rivo")1036 - posix: find-file's test argument now also accepts SRE forms.1037 - numerator and denominator now accept inexact numbers, as per R5RS1038 (reported by John Cowan).1039 - Implicit $VAR- and ~-expansion in pathnames have been deprecated (#1001)1040 - Fixed EINTR handling in process-wait and when reading from file ports.1041 - Irregex is updated to 0.9.2, which includes bugfixes and faster submatches.1042 - Compile-time expansions for "[sf]printf" are slightly more efficient.1043 - Removed the deprecated "always?", "never?", "shuffle" and "none?" procedures.1044 - Fixed problem "make-pathname" that returned an absolute path if given1045 a relative one without a directory argument.1046 - The implementation of promises has been made more efficient.1047 - Removed the deprecated "c-runtime", "null-pointer?" and "pointer-offset"1048 procedures.1049 - The deprecated alias "mutate-procedure" for "mutate-procedure!" has1050 been removed.1051 - On 64-bit systems the feature identifier "64bit" is registered.1052 - "process-fork" accepts an optional argument that specifies1053 wether other threads should be terminated in the child process.1054 - The "signal/bus" signal identifier was missing.1055 - Added setter-procedure for "signal-mask".1056 - Added "recursive-hash-max-length" and "recursive-hash-max-depth"1057 parameters (srfi-69).10581059- Platform support1060 - CHICKEN can now be built on AIX (contributed by Erik Falor)1061 - CHICKEN can now be built on GNU Hurd (contributed by Christian Kellermann)1062 - Basic support has been added for building Android and iOS binaries (see1063 the "README" file for caveats and pitfalls) (contributed by Felix Winkelmann1064 from bevuta IT GmbH)1065 - Added support for 64-bit Windows (consult the "README" file for more1066 information).10671068- Runtime system1069 - finalizers on constants are ignored in compiled code because compiled1070 constants are never GCed (before, the finalizer would be incorrectly1071 invoked after the first GC). (Reported by "Pluijzer")1072 - The call trace buffer is now also resizable at runtime via ##sys#resize-trace-buffer.1073 - C_zap_strings and ##sys#zap-strings (undocumented) have been deprecated.1074 - Special events in poll() are now handled, avoiding hangs in threaded apps.1075 - When invoking procedures with many rest arguments directly (not via APPLY),1076 raise an error when argument count limit was reached instead of crashing.1077 - When the maximum allowed heap size is reached, panic instead of crashing.1078 - The code generated for mutating data destructively is partially inlined1079 and thus slightly more efficient.1080 - Fixed incorrect code in the foreign argument conversion for1081 "unsigned-integer64" (#955). For unsigned-integer, integer64 and1082 unsigned-integer64, disallow floating-point numbers. Fix behavior1083 on 32-bit systems.1084 - On systems that provide sigprocmask(2), segmentation violations, illegal1085 instruction signals, bus errors and floating-point exceptions are now caught1086 and trigger normal error-processing (including a backtrace). The handling1087 of these so called "serious" signals can be disabled by passing the1088 "-:S" runtime option to executables.1089 - Reclamation of unused interned symbols (enabled with the "-:w" runtime option)1090 works much better now.10911092- Build system1093 - The tests can now be run without having to first install CHICKEN.1094 - Fixed a dependency problem that made it impossible to build the distribution1095 tarball on Windows with the mingw compiler.1096 - Increased the "binary compatibility version" to 7.10971098- Tools1099 - "csc"1100 - "-z origin" is now passed as a linker option on FreeBSD when1101 compiling for deployment (thanks to Jules Altfas & Vitaly Magerya)1102 - "-deploy" works now on FreeBSD (thanks to Jules Altfas and1103 Vitaly Magerya), OpenBSD and NetBSD (see README for NetBSD).1104 - added "-oi"/"-ot" options as alternatives to "-emit-inline-file"1105 and "-emit-type-file", respectively; "-n" has been deprecated.1106 - .c/.o files are no longer overwritten when they have the same basename1107 as a Scheme source file (i.e. "csc foo.scm foo.c -o foo" works now).1108 - "chicken-install"1109 - "-deploy" now correctly installs dependencies of1110 deployed eggs under the deployment directory instead of globally.1111 - Full URI syntax is now supported for proxy environment variables1112 (thanks to Michele La Monaca)1113 - "chicken-status"1114 - Added -eggs command line option to list installed eggs1115 - misc1116 - Removed the deprecated "-v" options (use "-version" instead) in various1117 core programs.1118 - The runtime linker path for compiled executables was not set correctly1119 on FreeBSD systems. This has now been fixed.1120 - Removed the deprecated "make" and "make/proc" facility from the1121 "setup-api" module; also removed the deprecated "required-extension-version"1122 and "required-chicken-version" procedures.11231124- Syntax1125 - Added the aliases "&optional" and "&rest" as alternatives to "#!optional"1126 and "#!rest" in type-declarations (suggested by Joerg Wittenberger).1127 - Vectors, SRFI-4 number vectors and blobs are now self-evaluating for1128 R7RS compatibility. Being literal constants, they are implicitly quoted.1129 - For R7RS compatibility, named character literals #\escape and #\null are1130 supported as aliases for #\esc and #\nul. WRITE will output R7RS names.1131 - The CASE form accepts => proc syntax, like COND (as specified by R7RS).1132 - letrec* was added for R7RS compatibility. Plain letrec no longer behaves1133 like letrec*.11341135- Compiler1136 - the "inline" declaration does not force inlining anymore as recursive1137 inlining could lead to non-termination of the compiler (thanks to1138 Andrei Barbu).1139 - Type-analysis ("scrutiny") is enabled by default now, unless1140 "-optimize-level 0" or "-no-usual-integrations" is given.1141 - The "-scrutinize" compiler option has been deprecated.1142 - A new lightweight flow-analysis pass ("lfa2") has been added.1143 Enable by passing the "-lfa2" option to the compiler.1144 - The deprecated options "-disable-warning", "-heap-growth", "-heap-shrinkage"1145 and "-heap-initial-size" have been removed.1146 - Removed the deprecated "constant" declaration.1147 - Removed the deprecated "-lambda-lift" and "-unboxing" compiler options.1148 - Removed the deprecated "-V" compiler option.1149 - Generated names for formal parameters of foreign functions are slightly1150 more informative.1151 - Unused references to variables that name intrinsics can be removed.1152 - In the flow-analysis pass, matching of combinations of "list"/"list-of" and1153 "or" types with has been made more reliable.1154 - Fixed various bugs in the type database.11551156- Syntax expander1157 - added "require-extension-for-syntax" and "use-for-syntax".1158 - Extended syntactic definitions are now available by default in all1159 evaluated code, particularly in code evaluated at runtime in compiled1160 applications.1161 - Removed the deprecated variant "(define-compiler-syntax (NAME . LLIST) BODY ...)"1162 of "define-compiler-syntax".11631164- C API1165 - Deprecated C_get_argument[_2] and C_get_environment_variable[_2] functions.1166 - Removed the deprecated "__byte_vector" type.1167116811694.8.011701171- Security fixes1172 - CVE-2012-6125: Improved hash table collision resistance and added1173 randomization to prevent malicious external causes of collisions.1174 All SRFI-69 procedures accept extra arguments to control randomization1175 for testing/debugging.1176 - CVE-2012-6124: On 64-bit machines the "random" procedure no longer1177 truncates result values (which caused very nonrandom results for very1178 large values). Note that random shouldn't be used for1179 security-critical code.1180 - CVE-2012-6123: Added checks for embedded '\0' characters in strings1181 passed to some C functions on a lower level than CHICKEN's FFI.11821183- Build system1184 - version information has been moved into a separate unit to make the1185 build-version shown in the banner and accessible through library1186 procedures more accurate, this also speeds up the build on version-1187 changes (thanks to Jim Ursetto for contributing this)1188 - the build was made more reliable with respect to cross-compilation1189 and custom installation names1190 - the test-suite is now working on the mingw32 platform (with1191 a few tests disabled due to missing functionality)1192 - the version and branch of the sources are now properly compiled1193 into the core libraries and shown in the "csi" and "chicken"1194 version headers1195 - The default target library name for an installation configured for cross-1196 compilation is now "libchicken" and independent on any particular1197 setting of PROGRAM_PREFIX/PROGRAM_SUFFIX (thanks to Otavio Salvador)11981199- Compiler1200 - Fixed bug in handling of symbols in constant-definitions (thanks to Peter1201 Bex)1202 - Stricter check for value-part of constant definition (thanks to Kon Lovett)1203 - Fixed bug that caused argument-signatures of external definitions to be1204 incorrectly modified during optimization (thanks to Peter Bex)1205 - Failing constant-folding expressions now produce a compile-time warning1206 - Fixed various bugs in the internal type-database (thanks to Kon Lovett and1207 Peter Bex)1208 - Fixed incorrect optimization rules for some fp-rounding and fixnum operators1209 - added "-specialize" option and "specialize" declaration which enables1210 optimizations of uses of core library procedures based on type-1211 information gathered during flow analysis1212 - "-optimize-level 3" and higher now implies "-specialize"1213 - added option "-strict-types" and "-emit-type-file"1214 - progress-information is now only shown with "-debug p"; the "-verbose"1215 option only shows informational but noncritical messages1216 - added optimizations for some library procedures1217 - variable propagation for global variable accesses is now done in certain1218 situations1219 - the algorithmic complexity of the closure-conversion pass has been1220 reduced which speeds up compilation noticably for large files1221 - the "-uses" option handles whitespace in unit lists given on the1222 command line (thanks to Santosh Rajan)1223 - the alternative branch in a conditional is dropped when the condition1224 is known to be a non-boolean value (suggested by Joerg Wittenberger)1225 - implemented numerous fixes and improvements for flow analysis1226 - fixed a bug in the compiler that could cause some variable bindings1227 to be optimized away in certain situations involving inlining1228 - added an experimental optimization called "clustering" (enable1229 with the compiler option of the same name)1230 - the optimizations done by the compiler are now listed as a comment1231 in the generated C file1232 - the type-information obtained during flow-analysis ("scrutiny") is1233 now used for performing type-sensitive optimizations of calls to1234 most of the core-library procedures1235 - deprecated the "constant" declaration specifier1236 - "unboxing" optimization has been completely removed - the implementation1237 was unreliable and unmaintainable; the "-unboxing" compiler option will1238 still be accepted but will produce a warning1239 - Peter Bex contributed an optimization to the analysis pass that1240 greatly reduces compile time for source code containing deeply nested1241 lexical bindings1242 - procedures that are known to have the value of a core library procedure1243 that is a "standard" or "extended binding" will be inlined1244 - enhanced line number tracking to get better error messages from1245 the scrutinizer.1246 - hygiene bugs related to compiler-syntax were fixed.1247 - the local flow-analysis was sometimes reporting multiple warnings1248 for the same type-conflict.1249 - the time/space-complexity of some algorithms used in the compiler1250 were reduced resulting in much better compile-times especially1251 for large source files.12521253- Interpreter1254 - ",q" leaves the currently active REPL invocation instead of1255 terminating the process (as suggested by John Cowan)1256 - ",m" properly switches between modules (thanks to Christian Kellermann)12571258- Core libraries1259 - Cleaned up the set of available internal SRFI-feature-identifiers1260 - Fixed bugs in "make-pathname" and "normalize-pathname" (thanks to Jim Ursetto)1261 - The reader is now more consistent when parsing symbol- and keyword names1262 that are fully or partially escaped (thanks to Kon Lovett)1263 - The printer now does a better job at escaping certain single-character1264 symbol names1265 - Unit "lolevel"1266 - deprecated "null-pointer" and "null-pointer?"1267 - Fixed a bug in the Windows implementation of "file-type" (thanks to1268 Jim Ursetto)1269 - Fixed a bug in the implementation of "current-milliseconds" that could1270 result in integer-overflow1271 - Fixed an incorrect type-check in "list-ref" (thanks to Sven Hartrumpf)1272 - Disabled "-setup-mode" when compiling extensions for deployment (thanks1273 to Ivan Raikov)1274 - Got rid of some warnings in the C runtime system that were triggered on1275 the SunPro C compiler (thanks to Joe Python)1276 - Fixed bug in "string->number" that caused out-of-range characters to1277 be accepted for base > 10 (thanks to Jim Ursetto)1278 - added "foldl" and "foldr" procedures, which are more efficient and1279 have a more consistent argument order than the corresponding1280 SRFI-1 procedures1281 - "shuffle" has been deprecated1282 - added "queue-length"1283 - "queue->list" allocates and returns a fresh list now1284 - invoking a parameter-procedure with an argument will return the new1285 value1286 - added new procedure "quit"1287 - port-procedures now check correctly for argument-ports being open1288 (thanks to Peter Bex)1289 - "repl" accepts an optional evaluator procedure (suggested by John1290 Cowan)1291 - added a setter procedure to "signal-handler" ("posix" unit)1292 - EINTR is properly handled for input routines that may block1293 waiting for input1294 - the implementation of R5RS evaluation environments is now fully1295 standards compliant1296 - "file-exists?" and "directory-exists?" work now properly for files1297 > 2GB (EOVERFLOW handling in stat(3) system call)1298 - fixed bug in implementation of "fifo?"1299 - the procedure returned by "condition-predicate" accepts any type1300 of argument now1301 - blobs have a readable textual representation ("#{...}")1302 - "find-files" does not follow symlinks by default (as it did previously)1303 - also, the old non-keyword argument signature for "find-files" is not1304 supported anymore1305 - added "alist-update" ("data-structures" unit)1306 - "irregex-replace" returns the original string instead of #f when the1307 regex does not match1308 - irregex "real" built-in utility pattern now accepts a leading sign1309 - added "change-directory*" ("posix" unit)1310 - number parsing has been made more reliable and standards compliant1311 - deprecated "none?", "always?" and "never?"1312 - library procedures that take ports as arguments now all perform checks1313 on port-direction and open/closed state1314 - "mutate-procedure" has been renamed to "mutate-procedure!" - the old1315 name is still available but deprecated1316 - deprecated C_hash_string and C_hash_string_ci functions in the C API in1317 favor of the more secure versions C_u_i_string_hash, C_u_i_string_ci_hash1318 - a number of bugs in the irregex regular expression engine have been1319 fixed; it has been updated to upstream release 0.8.31320 - "with-input-from-file", "with-output-to-file", "with-input-from-pipe" and1321 "with-output-to-pipe" now properly restore the standard input/output1322 ports in case the body thunk escapes1323 - symbols with a single-char print-name where not always properly escaped1324 when printed readably1325 - the "make" facility of the "setup-api" module has been deprecated,1326 please use the "make" extension when your egg requires this during1327 setup.13281329- Core tools1330 - "csc"1331 - The environment-variables "CHICKEN_C_INCLUDE_PATH" and1332 "CHICKEN_C_LIBRARY_PATH" can now be used to add default include-1333 and link-directories to C-compiler invocations1334 - "-O5" passed expensive optimization flags to the C compiler which1335 could expose C-Compiler bugs, depending on the compiler version1336 (thanks to Sven Hartrumpf for pointing this out).1337 - "-rpath" is ignored on OS X (thanks to Kon Lovett).1338 - Fixed handling of "-output-file" (it was being ignored)1339 - "chicken-install"1340 - Added option "-override", which allows retrieving extension-1341 versions from a file - this may be useful to ensure specific1342 versions of a complete set of eggs are installed1343 - Added option "-keep-installed"/"-x" that only installs explicitly1344 named extensions given on the command line, if they are not1345 already installed1346 - Added option "-list" that lists all extensions available1347 - Added option "-csi" to specify what interpreter should be used1348 to execute the setup-script of an installed extension1349 - Added option "-scan" that scans a local directory for the highest1350 available extension versions available1351 - Added option "-reinstall" that reinstalls all currently installed1352 eggs, keeping their versions, if possible1353 - Fixed bug with "chicken-install -test" when multiple extensions where1354 given on the command line (thanks to Kon Lovett)1355 - installing subdirectories works now on Windows.1356 - fixed handling of "-force" when a "chicken" dependency version did1357 not match1358 - added new option "-show-foreign-depends" which lists foreign egg1359 dependencies (if available)1360 - added new option "-show-depends" which lists egg dependencies1361 - added support for "or"-dependencies where a dependency is considered1362 installed if one of a set of candidates is available1363 - "chicken-profile"1364 - fixed some bugs in the profiler and the runtime support code for1365 profiling (thanks to Sven Hartrumpf)1366 - fixed broken percentage calculation (thanks to "megane")1367 - "chicken-status"1368 - Added option "-list" that dumps versions of installed extensions1369 in a format suitable for "chicken-install -override ..."1370 - the "pattern" argument is now actually treated as a pattern and not1371 as a regex13721373- Core syntax1374 - "assert" shows the line number of the form when a second argument1375 is not given or is a literal string1376 - "parameterize" now correctly omits invoking the guard procedure when1377 the old value is restored (thanks to Joo ChurlSoo)1378 - added ":", "the" and "assume" syntax for declaring types1379 - added "define-specialization" form to declare type-driven procedure1380 call rewrites in compiled code13811382- Syntax expander1383 - Fixed a bug that caused imported identifiers to leak into the1384 macroexpansion/compile-time environment (reported by Christian Kellermann)1385 - Fixed a bug in the processing of extended lambda-lists (thanks to Peter Bex)1386 - Peter Bex fixed a bug that caused bound variables to be incorrectly1387 renamed in quoted literals (thanks to Matthew Flatt)1388 - fixed devious bug in the invocation and generation of transformer1389 procedures1390 - using normal "lambda" forms as transformers for local or global1391 syntax definitions is deprecated - one should use "syntax-rules",1392 "er-macro-transformer" or "ir-macro-transformer" from now on13931394- Runtime system1395 - fixed handling of "inf" and nan" floating-point predicates for Solaris1396 (thanks to Claude Marinier)1397 - support for re-loading of compiled files has now been completely1398 removed1399 - the maximum length of strings is no longer limited to a 24-bit1400 number on 64-bit architectures but can be 56 bits.1401 - string-comparison handles embedded '\0' characters.1402 - numerical predicates handle infinity and NaN correctly.1403 - deprecated "[+-]nan", "[+-]inf" and other notations "accidentally"1404 accepted by CHICKEN due to the underlying C library's strtod() function,1405 standardizing on "[+-]nan.0" and "[+-]inf.0" from R6RS (and soon R7RS),1406 when displaying numbers only these forms are generated now.1407 - signals are queued to some extent and the interrupt handling has1408 been cleaned up somewhat1409 - the interpreter handles SIGINT directly - loading the "posix" unit1410 is not needed anymore to handle this feature1411 - changed default nursery size slightly and fixed a bug that caused1412 incorrect (too small) nursery sizes on 64-bit platforms1413 - deprecated the compiler option "-heap-initial-size", "-heap-growth"1414 and "-heap-shrinkage"1415 - the assembly-language stub routine for the implementation of "apply"1416 was broken for Sparc64 systems and has been disabled for this platform1417 - signal masks were accidentally reset upon GC for some platforms; use1418 sigsetjmp/siglongjmp on BSD, Linux, MacOS X and Haiku14191420- Type system1421 - added new type-specifiers "input-port", "output-port", "(list-of T)"1422 and "(vector-of T)"1423 - the type-specifiers "(vector T ...)" and "(list T ...)" represent1424 fixed size lists and vectors now1425 - added qualified types ("forall"), optionally with type constrains1426 - added the "define-type" special form and type-abbreviations1427 - added "compiler-typecase", a compile-time typematching form14281429- Module system1430 - Added "interfaces", which are named groups of exports1431 - Added "functors", which are parameterized modules1432 - Modules can now be aliased1433 - New syntax:1434 (define-interface NAME EXPORTS)1435 (functor (NAME ...) EXPORTS ...)1436 - Extended syntax of "module" for aliasing and functor-instantiation1437 - the "scheme" module has been integrated into the core library and1438 is not installed as a separate import library anymore1439 - added core module "r4rs" containing only bindings for R4RS identifiers1440 - added core module alias "r5rs" for "scheme" module1441 - added "module-environment" which returns an evaluation environment1442 for the bindings of a module1443 - fixed bugs related to using "export"/"reexport" in combination with1444 wildcard ("*") module export lists (thanks to "megane")14451446- Foreign function interface1447 - locatives are allowed as arguments declared "c-pointer"1448 - "int32" was not properly detected as a valid foreign type (thanks1449 to Jim Ursetto)1450145114524.7.014531454- Build system1455 - On BSD, libchicken.so is linked with -lpthread, as this seems1456 to be required for linking libraries that require pthreads1457 - The C header-files are now installed in a subdirectory below1458 the "PRFIX/include" directory to allow installation of multiple1459 chickens with different PROGRAM_PREFIX/PROGRAM_SUFFIX settings1460 in the same prefix; to avoid conflicts with existing CHICKEN1461 headers, it is recommended to completely remove any old1462 installation before installing the new version1463 - the PROGRAM_PREFIX and PROGRAM_SUFFIX configuration settings1464 are applied to generated files and directories which allows1465 perform differently named installations into the same PREFIX1466 - increaded binary-compatibility version from 5 to 6, which1467 means installed extensions in an existing installations will1468 have to be re-installed1469 - bugfixes in mingw/msys makefiles1470 - Sven Hartrumpf contributed a bugfix to the internal helper1471 script for creating distribution directories1472 - Peter Bex has cleaned up the makefiles heavily, making the1473 build more maintainable and easier to modify; thanks to all1474 who helped testing this new build1475 - renamed the makefile to `GNUmakefile' to catch using the1476 a make(3) other than GNU make1477 - configuration-header fix for BSD systems (thanks to Peter Bex1478 and Christian Kellermann)147914801481- Core libraries1482 - the `regex' library unit has been removed and is separately1483 available as an extension which should be fully backwards-1484 compatible1485 - `irregex' is now a core library unit and replaces the `regex' API1486 - "extras" unit1487 - fixed pretty-printer output of certain escaped character1488 sequences inside strings (thanks to Mario Domenech Goulart,1489 thanks to Kon Lovett for pointing out a missing test-file)1490 - The pretty printer did not escape some control characters correctly1491 (reported by Alan Post)1492 - control-characters in symbol-names are now properly escaped if1493 the symbol is printed readably (thanks to Alaric Snell-Pym1494 for pointing this out)1495 - the deprecated `random-seed' function has been removed1496 - "files" unit1497 - fixed bug in `normalize-pathname'1498 - `file-copy' and `file-move' check whether the source-file is a1499 directory1500 - `delete-directory' now optionally deletes directories recursively1501 - "irregex" unit1502 - Peter Bex has contributed various bugfixes and performance1503 enhancements1504 - "library" unit1505 - Added "condition->list" (thanks to Christian Kellermann)1506 - The reader accepts now escaped octal character codes in string1507 literals1508 - Read-syntax can return zero values to indicate ignored objects1509 - R5RS output output routines now always return a "void" result1510 - "\|" was not correctly escaped when occurring inside1511 symbol print names1512 - added `condition->list', contributed by Christian Kellermann1513 - added `equal=?'1514 - removed deprecated `getenv', `left-section', `right-section',1515 `project', `c-runtime' and `noop'1516 - added missing import-library entry for `vector-copy!' (thanks1517 to Jules Altfas)1518 - circular or excessively deeply nested data generates a more1519 useful error message when encountered by `equal?'1520 - `list-tail' gives now a better error message when passed a1521 non-list argument1522 - fixed bug in `getter-with-setter' that modified the first1523 argument if it already had a setter procedure attached1524 - fixed incorrect size of internal data vector used in `time'1525 (thanks to Kon Lovett)1526 - "lolevel" unit1527 - removed deprecated `global-bound?', `global-make-unbound',1528 `global-ref' and `global-set!' procedures1529 - added support for `pointer-vectors':1530 - make-pointer-vector1531 - pointer-vector?1532 - pointer-vector-length1533 - pointer-vector-ref1534 - pointer-vector-set!1535 - "posix" unit1536 - "close-input-pipe" did not return the status code of a1537 terminated process on Windows (reported by Mario Domenech Goulart)1538 - added `file-creation-mode' (suggested by Mario Domenech Goulart)1539 - "setup-api" unit1540 - `required-extension-version' and `required-chicken-version' have1541 been deprecated1542 - "srfi-18" unit1543 - removed deprecated `milliseconds->time' and `time->milliseconds'1544 procedures1545 - `make-mutex' incorrectly created mutexes as initially owned by1546 the current threads (thanks to Joerg Wittenberger)1547 - the file-descriptor handling in the scheduler has been simplified1548 and performs some sanity checks1549 - deadlock in the scheduler now terminates the process instead of1550 attempting to throw an error1551 - added some sanity checks to the scheduler1552 - "tcp" unit1553 - Fixed bug in "tcp-abandon-port" (reported by Jim Ursetto)1554 - "utils" unit1555 - `compile-file' now returns `#f' when the compilation fails,1556 instead of raising an error155715581559- Compiler1560 - Removed unreliable lambda-lifting optimization (now, really!);1561 the "-lambda-lift" option is still accepted but produces a1562 warning1563 - When "-scrutinize" is given, installed ".types" files will be1564 automatically consulted for extensions and used units1565 - Fixed optimizer bug in handling of "let" forms with multiple1566 bindings which could result in toplevel assignments being1567 silently dropped (reported by Moritz Heidkamp)1568 - the `-accumulate-profile' option did not provide a way to1569 specify the target profile data file - now `-profile-name'1570 must always be given when accumulated profiling is done1571 (thanks to Taylor Venable)1572 - added `-module' option, which wraps the code into an implicit1573 module1574 - removed check for unsafe toplevel calls in safe mode1575 - intrinsic handling of `exact->inexact' and `string->number' is1576 now more efficient1577 - fixed bug in leaf-routine optimization (thanks to David1578 Dreisigmeyer)1579 - unit-toplevel entry-points are now named differently, which1580 may break binary-compatibility with existing compiled Scheme1581 code modules1582 - fixed invalid dropping of unused external entry-points in1583 block-mode1584 - fixed incorrect lambda-list check in scrutinizer (thanks to1585 Alan Post)1586 - Kon Lovett reported numerous bugs in the type-database used1587 by the scrutinizer1588 - `-fwrapv' is disabled on OpenBSD, since the default compiler1589 does not support this option (thanks to Christian Kellermann)1590 - on Solaris `gcc' is used by default, override `C_COMPILER'1591 to use the Sun compiler instead1592 - declaring a function `notinline' will prevent direct-call1593 optimization for known procedure calls1594 - the implementation of overflow-detection for arithmetic operations1595 on fixnums have been replaced and now allow using the full 63-bit1596 range of fixnums on 64-bit systems1597 - fixed serious inlining-bug (thanks to Sven Hartrumpf)1598 - constant-folding in the compiler has been simplified and1599 is more reliable (thanks to Sven Hartrumpf)1600 - optimization-levels 3 and higher imply `-unboxing -inline-global'1601 - added new declaration `unsafe-specialized-arithmetic' which allows1602 optimizing unboxed floating-point arithmetic in safe mode1603 - removed `scrutinize' declaration1604 - the warning shown when unimported identifiers are used in compiled1605 modules now also shows the name of the procedure where the1606 identifier is referenced (suggested by Alaric Snell-Pym)160716081609- Documentation1610 - Added list of installed files to README1611 - Documented remaining "c...r" standard procedures (thanks to1612 Juergen Lorenz)1613 - The manual is now installed in HTML format in1614 PREFIX/share/chicken/doc, many thanks to Jim Ursetto for1615 contributing is excellent `manual-labor' extension which made1616 this possible161716181619- Foreign function interface1620 - Added support for missing "(const [XXX-]c-string)" foreign type1621 (thanks to Moritz Heidkamp)1622 - removed deprecated `pointer', `nonnull-pointer', `byte-vector'1623 and `nonnull-byte-vector' types1624 - added missing result-type handling for `unsigned-integer64'1625 (thanks to Moritz Heidkamp)1626 - added `foreign-type-size' macro1627 - added the new foreign type `size_t' (suggested by Moritz1628 Heidkamp)1629 - added the missing `unsigned-integer64' foreign type (thanks1630 to Moritz for catching this)1631 - added new foreign type `pointer-vector' which maps to `void **'1632 and provided a low-level API in the `lolevel' library unit for1633 manipulating pointer vectors163416351636- Runtime system1637 - Fixed typo in "runtime.c" (thanks to Sven Hartrumpf)1638 - Little-endian detection on MIPS systems was not correct (thanks1639 to Christian Kellermann)1640 - Fixed bug in handling of runtime-options with arguments (also1641 reported by Christian Kellermann)1642 - `equal?' does not compare procedures recursively anymore1643 - fixed incorrect use of alloca.h on OpenBSD (thanks to1644 Christian Kellermann and Alan Post)1645 - checks for NaN and infinity are now done using ISO C991646 operations, which required various changes to `chicken.h'1647 to make the code compile in ISO C99 mode1648 - remaining debris regarding MSVC builds has been removed1649 - fixed bug in argument-type check for 64-bit integer (thanks1650 to Kon Lovett)1651 - increased default trace-buffer size from 10 to 161652 - fixed bug in low-level termination routine (thanks to1653 Jeronimo Pellegrini)1654 - the scheduler handles violations of internal invariants1655 regarding threads slightly more gracefully (thanks to Jim1656 Ursetto)1657 - fixed broken sleep-time conversion (thanks to Karel Miklav)1658 - repaired broken handling of multiple finalizers that referred1659 to the same object (reported by Moritz Heidkamp)1660 - fixed problem with reader and escaping of single-char symbols166116621663- Syntax expander1664 - For-syntax syntax definitions where not correctly retained inside1665 modules1666 - Peter Bex fixed various critical bugs in the expander1667 - The simplification for quasiquote expressions was unable1668 to handle certain circular data (reported by Moritz Heidkamp)1669 - `syntax-rules' now supports tail-patterns and is now fully1670 SRFI-46 compatible - many thanks to Peter Bex for implementing1671 this1672 - Peter Bex provided a bugfix for resolution of primitive imports1673 - handling of internal definitions with shadowed defining1674 forms is now done correctly - fix once again from Peter Bex1675 - corrected non-standard behaviour of quasiquote with respect1676 to nested quasiquotations - another bugfix by our mighty macro1677 master1678 - removed stub-implementation of `define-macro'1679 - handled case where a global redefinition of `cons' influenced1680 a non-inlined internal use in the expander (thanks to David1681 Steiner)1682 - `define-record' now allows defining SRFI-17 setter procedures1683 for accessing slots1684 - the expansion of DSSSL lambda-lists uses now `let-optionals*'1685 internally instead of `let-optionals' and so allows1686 back-references to earlier formal variables; this also results in1687 faster and more compact code for argument-list destructuring1688 (thanks to Alan Post)1689 - new "implicit renaming" macro facility contributed by Peter Bex1690 (see `ir-macro-transformer')1691 - parameters are now settable and can be modified using `set!'1692 (SRFI-17)1693 - added a SRFI-17 setter to `list-ref'1694 - added literal blob syntax ("#{ ... }")169516961697- Tools1698 - chicken-install1699 - option "-deploy" does not compile deployed extensions with1700 "-setup-mode" anymore to avoid problems with dynamic loading on1701 some platforms (specifically Mac OS X)1702 - option "-deploy" option did not copy the correct library1703 (including the version-number) (thanks to Christian Kellermann)1704 - added support for proxy-authentification (thanks to Iruata Souza)1705 - when installing from a local directory `chicken-install' now1706 removes existing `*.so' files in that location to avoid stale1707 binaries when the `make' syntax is used in setup scripts1708 - chicken-bug1709 - removed disabled e-mail support1710 - csc1711 - removed `-static-extension' option1712 - removed deprecated `-windows' option1713 - fixed incorrect use of `chicken.rc' on non-Windows platforms1714 in `-gui' mode (thanks to "ddp")1715 - when compiling in C++ mode, the compiler will be called with the1716 `-Wno-write-strings' option1717 - `-frwapv' has been added to the default C compiler options1718 - csi1719 - the ",m" toplevel command now accepts "#f" to switch back to1720 the initial empty module context (suggested by Christian Kellermann)1721 - fixed broken `,g' toplevel command1722 - deprecated `script' feature identifier (use `chicken-script'1723 instead)1724 - options `-p' and `-P' and `-e' imply `-no-init'1725 - the call-trace reported will not include exception-handler code1726 anymore (suggested by Christian Kellermann)17271728172917304.6.017311732- the licenses used in all components of the core system have1733 been collected in the LICENSE file (Thanks to Peter Bex)1734- Added new compiler option `-no-module-registration' which1735 omits generation of module registration code, even when1736 generation of import libraries has not been enabled1737- running `chicken' without arguments now hints at the1738 existence of `csi' and `csc'1739- `caar', `cdar' and `cddr' generate faster code1740- calls to `list', `vector' and the internal structure1741 allocation primitive that take 1 to 8 arguments generate1742 faster code1743- `chicken-install' now checks the version of the setup1744 configuration file `setup.defaults'1745- added option `-exact' to `chicken-status' and `chicken-uninstall',1746 which treats the pattern argument as the literal name of the1747 extension to be listed/deinstalled1748- `assert' shows line-number information, if available1749 (suggested by Alejandro Forero Cuervo)1750- interpreted code records the lexical-environment at call-1751 sites, which can in case of an error be inspected with the1752 new `,c', `,f' and `,g' csi toplevel commands1753- the evaluation-result history in `csi' can be inspected and1754 cleared (to reduce memory load) with the toplevel commands1755 `,h' and `,ch'1756- unit `data-structures': deprecated `left-section' and1757 `right-section'1758- fixed bug that caused the static syntax-environment of1759 syntax exported by a module to be incomplete1760- module `setup-api': Documented the `version>=?' and1761 `extension-name-and-version' proceedures1762- unit `posix': `utc-time->seconds' is considerably1763 faster on Mac OS X (thanks to Jim Ursetto);1764 added new procedure `file-type'1765- the `time' macro now shows the correct number of minor1766 garbage collections1767- the immediate-object check inside the marking procedure1768 of the garbage collector has been manually inlined which1769 results in a significant GC speedup, depending on memory1770 load1771- unit `srfi-18' and `scheduler': various bugfixes (thanks1772 to Joerg Wittenberger)1773- unit `srfi-4': bugfix in 8-bit vector allocation routines1774 (thanks to Kon Lovett)1775- added `-:H' runtime option to dump heap state on exit1776- fixed missing change in Makefile.cygwin (thanks to John Cowan)1777- fixed bug in `let-optionals' macro that caused problems when the1778 rest-variable was actually named `rest' (thanks to Alejandro1779 Forero Cuervo)1780- when Scheme files are translated to C++ or Objective-C, `csc'1781 will register the feature-identifiers `chicken-scheme-to-c++'/1782 `chicken-scheme-to-objc' ar compile-time1783- fixed bug in expansion of `#!key' parameters in lambda-lists1784- debug-output for forcing finalizers on exit goes to stderr now1785 (thanks to Joerg Wittenberger)1786- the installation routines for extensions automatically add1787 version-number information if none is given in the extension1788 property list (suggested by Alejandro Forero Cuervo)1789- `standard-extension' accepts `#f' now for the version number1790 and will use the version that has been obtained via1791 `chicken-install'1792- `fifo?', `symbolic-link?', `directory?', `regular-file?', `socket?',1793 `character-device?' and `block-device?' now accepts file-descriptors1794 or filenames1795- `find-files' takes keyword arguments, now (including the options1796 to process dotfiles and ignore symbolic links); the old argument1797 signature is still supported but deprecated1798- removed dependency on `symbol-append' in some macros used in1799 srfi-4.scm to be able to compile the system with older chickens1800- fixed bug in script that generates development snapshot1801- added build-variable `TARGET_FEATURES', which can be used to pass1802 extra options enabling or disabling fetures for a system configured1803 for cross-compilation1804- added compiler and interpreter option `-no-feature FEATURENAME' that1805 disables predefined feature identifiers1806- code compiled with interrupts disabled will not emit inline files1807 for global inlining since they may execute in a context where1808 interrupts are enabled1809- the `setup.defaults' file that holds download sources for1810 `chicken-install' now allows aliases for locations1811- CHICKEN systems build from cross-compilation now by default1812 transparently build and install extensions for both the host1813 and target parts of the cross-compilation setup; the options1814 `-host' and `-target' can now be used to selectively build1815 an extensions for the host- and the target system, respectively1816- also added `-host' and `-target' options to `chicken-status' and1817 `chicken-uninstall'1818- `chicken-install' now respects the `http_proxy' environment variable1819 (contributed by Stephen Eilert)1820- the `srfi-4' library unit has been heavily cleaned up and optimized1821- optimization-level 3 now enables global inlining1822- fixed the case that declarations listing global identifiers did not1823 correctly rename them1824- deprecated `-N' option shortcut for `-no-usual-integrations' option in1825 `csc'1826- `csi' now offers a toplevel command `,e' for invoking an external1827 editor (suggested by Oivind Binde)1828- the `describe' command in `csi' now detects many circular lists1829 (contributed by Christian Kellermann)1830- `csi' doesn't depend on the `srfi-69' library unit anymore1831- when a closing sequence delimiter is missing or incorrect, the1832 reader also reports the starting line of the sequence1833- the reader signals an error when a file contains certain characters1834 that indicate that it is a binary file1835- procedure-information shown by the printer for procedures is now1836 corrected for some library procedures that where missing the correct1837 information; `getter-with-setter' copies procedure-information objects1838 into the newly created accessor procedure, if available1839- calls to some known pure standard- or extended procedures are removed, if1840 the procedures are called with side-effect free arguments and the1841 result is not used (this can also by enabled for user procedures with1842 the `constant' declaration)1843- fixed some build-system bugs related to installation1844- fixed a problem in the C runtime code that prevented it to be compileable1845 without a configuration header-file1846- the makefile-target to build a bootstrapping `chicken' executable1847 performs multi-stage build now1848- changed error message when required extension is out of date (thanks to1849 Mario Goulart)1850- documented library units loaded by default in `csi' (thanks to Moritz1851 Heidkamp)1852- added `boot-chicken' makefile target to simplify bootstrapping1853 the system from sources and documented this in the README1854 (suggested by Jim Ursetto)1855- CHICKEN can now be built on haiku (contributed by Chris Roberts)1856- on Solaris, the system can be compiled with the SunPro C compiler1857 (thanks to Semih Cemiloglu)1858- removed the `-disable-warnings' compiler option and `disable-warnings'1859 declaration specifier1860- `fx/' and `fxmod' generate now faster code in safe mode1861- cleaned up manual pages1862- slightly optimized variable- and procedure-access1863- in the compiler `-debug-level 2' implies `-scrutinize'1864- internal compiler-transformation for `for-each' and `map'1865 apply now with any expression as the procedure argument1866- the compiler warns about non-intrinsic exported toplevel variables1867 which are declared to be safe1868- `csc' didn't handle the `-verbose' option (thanks to Mario Goulart)1869- the `,d' command in `csi' now detects circular lists (thanks to1870 Christian Kellermann)1871- strings passed to C runtime functions and which are converted to1872 0-terminated C strings are now checked for not containing embedded1873 `\0' characters (thanks to Peter Bex)1874- errors in user-defined record printers are caught and shown in the1875 output instead of throwing an error to avoid endless recursion when1876 an error message is printed1877- a feature identifier named `chicken-MAJOR.MINOR' is now defined1878 to simplify conditionalization of code on the CHICKEN version1879- `getter-with-setter' copies the lambda-information (if available) from1880 the getter to the generated procedure1881- `time' uses a somewhat more concise output format and outputs timing1882 information to stderr instead of stdout1883- added a new chapter on cross-development to the manual1884- added the `safe-globals' declaration specifier1885- split up manual chapter `Modules and macros' into two chapters1886 (named `Modules' and `Macros', respectively - suggested by1887 Mario Goulart)1888- the last 5 non-precompiled regular expressions are now internally1889 cached in compiled form, which speeds up repeated matching of1890 the same uncompiled regular expression dramatically1891- added the new procedure `yes-or-no?' to the `utils' library unit1892- added a `bench' makefile target that runs some non-trivial1893 benchmark programs1894- added `install-target' and `install-dev' makefile target for1895 installing only target system libraries in cross-mode and1896 development files (static libraries and headers)1897- added `[-]no-procedure-checks-for-toplevel-bindings' compiler1898 option and declaration1899- usage of unimported syntax in modules gives more usable1900 error messages; in particular, used but unimported FFI forms are1901 now detected1902- invalid syntactic forms (mostly `()') encountered by the compiler1903 or interpreter show the contextual form containing the expression,1904 or, if indicated by the context warns about missing imports1905- simplified manual pages of all core tools - they now refer to1906 the output shown by invoking `<tool> -help'1907- added new option `-feature FEATURE' to `chicken-install' tool1908 to pass feature-identifiers to invocations of `csc'1909- removed deprecated `-host-extension' option from `chicken-install'1910- `chicken-status' in a system built for cross-compilation now1911 lists extensions installed in the target prefix, unless the1912 new `-host' option is given on the command line1913- `chicken-uninstall' in a system built for cross-compilation now1914 removes extensions installed in the target prefix, unless the1915 new `-host' option is given on the command line1916- added missing entry for `finite?' to the `chicken' module1917 exports1918- added new procedure `port-closed?' to the `library' unit1919 (contributed by Peter Bex)1920- added new procedure `symbol-append' to the library unit1921- the compiler-option `-optimize-level 0' is equivalent to1922 `-no-compiler-syntax -no-usual-integrations`1923- internal rewritings of `map' and `for-each' ensure correct1924 evaluation order of the arguments and does a better job1925 at detecting non-list arguments (thanks to Jim Ursetto)1926- `void' now takes arbitrary arguments and ignores them1927- deprecated `noop' (from the `data-structures' unit) which1928 is now replaced by `void'1929- the `time' macro now performs a major garbage collection1930 before executing the contained expressions and writes1931 the timings in a more compact format to the port given1932 by `(current-error-port)' instead of the standard output1933 port1934- definitions of the form `(define define ...)' and1935 `(define-syntax define-syntax ...)' now trigger an error,1936 as required by R5RS (thanks to Jeronimo Pellegrini and Alex1937 Shinn)1938- deprecated `random-seed' from the `extras' unit, since it1939 is identical to `randomize'1940- added new procedure `create-temporary-directory' to the1941 `files' unit1942- deprecated the optional path separator argument to1943 `make-pathname'1944- slightly improved the performance of keyword argument1945 processing1946- removed the deprecated `canonical-path' and `current-environment'1947 procedures from the `posix' unit1948- warnings that mostly refer to programming style issues are1949 now coined `notes' and are only shown in the interpreter1950 or when debug-mode is enabled or when scrutiny is enabled1951 when compiling195219534.5.019541955- internal fixes of handling of alternative installation-prefix1956 in setup-api1957- certain compiler-warnings that are in really just notes1958 and don't indicate a possible error (like reimport of1959 identifiers) are only shown with -S or in verbose mode1960- fixed handling of VARDIR in `chicken-install' (thanks to1961 Davide Puricelli)1962- `chicken-install -test' doesn't runs tests for dependencies1963- when a non-else clause follows an else-clause in `cond',1964 `case' or `select' a warning (note) is shown in verbose1965 mode1966- removed the deprecated `define-extension' and1967 `define-compiled-syntax'1968- `chicken-uninstall' now always asks before removing1969 extensions, unless `-force' is given1970- improved performance of keyword-argument processing slightly1971- `export' outside of a module definition has no effect1972- `number->string' now accepts arbitrary bases between 2 and 161973 (thanks to Christian Kellermann)1974- fixed `standard-extension' in `setup-api' module1975- literal constants keep their identity, even when inlined1976- Unit library: added `fxodd?' and `fxeven?'1977- All hardcoded special forms have been replaced with1978 syntax definitions that expand into internal forms, this1979 allows redefinition and shadowing of all Scheme core forms1980- faster implementations of `get' and `put!'1981- faster implementation of `assq' in unsafe mode1982- the `-sx' option prefixes each output line with `;'1983- slightly better expansion performance1984- more documentation of the C API (thanks to Peter Bex)1985- `module' supports a shorthand form that refers directly1986 to a file to be included as the module body1987- added runtime option `-:G' to force GUI mode (on platforms1988 that distinguish between GUI and non-GUI applications)1989- removed the unsafe runtime library (`libuchicken'), this1990 simplifies and speeds up the build and reduces the risk1991 of executables loading library units from different1992 variants of the runtime system1993- removed the `-unsafe-libraries' option from `chicken'1994 and `csc'1995- removed bootstrapping target and bootstrapping files from1996 development repository; to bootstrap the system, either1997 use a release or development-snapshot tarball or fetch1998 a statically linked precompiled `chicken' binary from1999 http://chicken.wiki.br/chicken-projects/bootstrap/2000- Jim Ursetto provided some fixes for building universal2001 binaries on Mac OS X2002- `csc' now compiles and links Windows resource (.rc) files2003 when given on the command line2004- `chicken-install' and `chicken-uninstall' have an embedded2005 manifest that suppresses the elevation dialog on Windows2006 Vista and later when UAC is activated (Thanks to Thomas Chust)2007- the `install' program is not used in the build on mingw2008 and mingw/MSYS platforms, since this is broken on older2009 mingw versions2010- line-number-information is now properly handled (in the2011 few places where it is used) correctly for included files;2012 the source file is given in trace-output in addition to2013 the line number2014- removed compiler warning for shared objects compiled in2015 unsafe mode2016- unboxing is now only done in unsafe mode2017- in unsafe mode, pointer-accessors from the `lolevel' unit2018 are now handled intrinsically by the compiler2019- `chicken-install' accepts now relative pathnames for the2020 `-prefix' option2021- `define-record-type' now optionally allows using SRFI-172022 setters as record-field modifiers2023- `integer?' returns `#f' for NaN and infinite numbers2024- `csc' now has an `-no-elevation' option for embedding a2025 manifest that prevents the elevation dialog on Windows2026 Vista and later when IAC is activated2027- the `,d' csi command displays qualified symbols properly2028- symbols starting with the `#\#' character trigger an2029 error when encountered by the reader2030- Unit posix: `glob->regexp' now always returns a regular2031 expression object or optionally an SRE2032- Unit posix: `terminal-port?' and `terminal-size' have been2033 implemented for Windows, the latter always returns `0 0',2034 though (thanks to Jim Ursetto)2035- Unit regex: `regexp' now accepts a regular expression2036 object as argument2037- Unit regex: removed `glob?'2038- fixed bug in `chicken-install'/`chicken-uninstall' and2039 `chicken-status' that prevented collapsed command-line2040 options to be handled correctly.2041- disabled runpath-fix for deployed applications for netbsd2042 (but resurrected providing a runpath at all, thanks to2043 Peter Bex)2044- Peter Bex provided documentation for the `C_closure' C API2045 function204620474.4.020482049- the system can now be built with llvm-gcc and/or "clang" (the2050 LLVM C compiler which doesn't use the GNU C frontend)2051- added new option `-trunk' to `chicken-install', which forces2052 building and installing the development version of extensions2053 in combination with `-t local'2054- added new option `-deploy' to `chicken-install', which builds2055 extension for use in "deployed" applications (see below)2056- added option `-deploy' to `csc', the compiler driver. With this2057 option `csc' can build fully self-contained application bundles2058 and double-clickable Macintosh GUI apps; see the "Deployment"2059 manual chapter for more information2060- the directory given to the `-prefix' option of `chicken-install'2061 may now be a relative pathname.2062- removed GUI-specific runtime library (`libchicken-gui') from2063 Windows build - GUI- and non-GUI applications now use the same2064 runtime library2065- special forms of the foreign-function interface have been replaced2066 with an internal form and syntax to allow renaming and shadowing of2067 these forms2068- the new `-private-repository' option in `csc' compiles executables2069 with the extension-repository path set to the directory from which2070 the program was started2071- `csc': deprecated the `-W' and `-windows' options, added `-gui' as2072 a platform-independent replacement2073- `require-extension'/`use' accepts now import-specifications2074- user-defined extension-specifiers and `set-extension-specifier!'2075 have been removed2076- `delete-file[*]', `rename-file', `create-directory', `file-copy',2077 `file-move', `delete-directory' and `change-directory' return their2078 argument/destination filename on success2079- added the missing procedure `condition-variable-name' to the2080 srfi-18 library unit (Thanks to Joerg Wittenberger)2081- the `glob?' function from the `regex' unit has been deprecated2082- added the procedure `scan-input-lines' to the `utils' library unit2083- added new runtime option `-:g' which enables GC debugging output2084- reclamation of unused symbols in "symbol-gc" mode (`-:w') now only2085 takes place for symbols with an empty property-list2086- on Windows loading of code compiled with [non-]GUI runtime libraries2087 will fail and produce an error message when the loading executable2088 is linked with a different runtime system2089- on Windows, GUI libraries were not correctly linked by `csc'2090- unit posix: added setter for `file-modification-time'2091- the banner shows the branchname of the build, unless it's "master"2092- the `-no-install' option to `chicken-install' is ignored when2093 building/installing dependencies2094- `chicken-uninstall' takes a glob instead of a regular expression as2095 argument2096- the rename and compare functions for low-level macro-definitions2097 accept now arbitrary s-expressions and renames/compares them recursively2098- `number->string' handles negative-numbers with bases different from 102099 correctly (thanks to Peter Danenberg)2100- removed deprecated `setup-install-flag' and `setup-verbose-flag' from2101 the `setup-api' module2102- added new option `-repository' to `chicken-install' (Thanks to Christian2103 Kellermann)2104- removed `chicken-setup' stub program2105- fix to `csc' to use the correct library when fixing dynamic load paths2106 (Thanks to Derrell Piper)2107- removed html documentation from distribution (the wiki manual will2108 now be installed)2109- fixed bug in `reexport' which caused syntax not to be correctly2110 reexported2111- previous assignments to a toplevel variable that are separated by2112 side effect free expressions are removed2113- fixed windows version of `find-files' (thanks to Jim Ursetto)2114- documentation for extensions is not installed automatically by2115 `chicken-install' anymore2116- changed binary version from "4" to "5", because the new runtime2117 libraries are not binary-compatible with previous releases; this2118 means all eggs have to be reinstalled and existing programs be2119 recompiled!2120- added unboxing pass to compiler which results in partially dramatical2121 performance improvements for unsafe floating-point-intensive code;2122 unboxing is enabled on optimization levels 4 and 52123- removed rest-argument-vector optimization as it could conflict2124 with inlining (thanks to Sven Hartrumpf)2125- renamed `pointer-offset' to `pointer+' and deprecated `pointer-offset'2126- toplevel assignments that have no other side-effects can be eliminated2127 if it can be shown that the value is not used (the compiler will2128 generate a warning in this case)2129- removed deprecated `-quiet' option in `chicken' program2130- removed deprecated `run-time-macros' declaration2131- removed deprecated `-v2' and `-v3' options in `csc' program2132- removed deprecated `list-of' function (it is exclusively available2133 as `list-of?' now)2134- removed deprecated `stat-...' functions in posix library unit2135- removed deprecated `for-each-line' and `for-each-argv-line' procedures2136 in utils library unit2137- added `fpinteger?' and `fpabs'2138- deprecated `define-compiled-syntax'2139- added new floating-point primitives `fpsin', `fpcos', `fptan',2140 `fpasin', `fpacos', `fpatan', `fpatan2', `fpexp', `fplog',2141 `fpexpt' and `fpsqrt'2142- heavy cleanup of floating math functions which gives much better performance,2143 especially for code compiled in unsafe mode2144- calling `assert' with a single argument shows the tested expression2145 on failure2146- various bugfixes and cleaning up214721484.3.021492150- fixed bug in `move-memory!' that caused negative offsets to be accepted2151 (thanks to Jim Ursetto)2152- removed tracing facility and apply-hook (see the "trace" egg2153 for a replacement for tracing and breakpoints)2154- chicken-install(1): renamed `-host-extension' option to `-host'2155- added support for a make(1) configuration file ("config.make")2156- `chicken-install' now allows specifiying a proxy for retrieving2157 extensions over HTTP (thanks to Nicolas Pelletier)2158- fixed bug in `cond-expand' that incorrectly renamed feature-identifiers2159 if the form was the product of a syntax expansion (reported by Thomas2160 Bushnell)2161- import-libraries are only generated by the compiler if they don't exist2162 yet and if the content has actually changed (this simplifies makefile-2163 rules in some cases)2164- it is now possible to pass a config-file to `make(1)' instead of specifying2165 all build-options as variables on the command-line (see README)2166- removed compiler options for "benchmark-mode" and replaced them with a2167 new optimization level (5) (note that `-O5' does not imply fixnum mode2168 anymore)2169- `hen.el' and `scheme-complete.el' are not bundled with the core system2170 anymore - `hen.el' is currently not maintained, and `scheme-complete.el'2171 has its own release cycle; both files are available, see2172 http://chicken.wiki.br/emacs2173- removed meaningless benchmark suite and cleaned up2174- added optional argument to `grep' that allows applying a function2175 to each matched item (contributed by Tony Sidaway)2176- added extension-property `import-only', which makes it possible to2177 create extensions that have no runtime part2178- the argument to `seconds->string', `seconds->utc-time' and2179 `seconds->local-time' is now optional and defaults to the value2180 of `(current-seconds)' (suggested by Mario Goulart)2181- removed read-syntax for `syntax' form2182- fixed bug in `get-condition-property'2183- fixed bug in windows version of `process-execute'2184- TCP timeouts throw exception of kind `timeout' to allow2185 distinguishing between timeouts and other errors2186- removed some internal functions that manipulate environments2187- fixed bugs in `standard-extension' (`setup-api' module) and added keyword2188 arguments for building static extensions and adding custom properties2189- when cross-compiling, `chicken-install(1)' doesn't pass `-setup-mode'2190 (the host tools should not attempt to load target binaries)2191- `installation-prefix' in the `setup-api' module was not always correctly2192 set2193- the `-force' option in `chicken-install(1)' overrides the CHICKEN version2194 check2195- disabled e-mail feature in `chicken-bug(1)', since it doesn't work2196 anyway, in the moment2197- fixed bug in `reexport' that made it impossible to reexport core library2198 definitions2199- fix in optimizer that sometimes caused C functions for inlined2200 procedures to be emitted multiple times (Thanks to Joerg Wittenberger)2201- documented `define-compiler-syntax' and `let-compiler-syntax'2202- printer for hash-tables shows current number of stores items2203- when upgrading during installation of a dependency `chicken-install'2204 shows the version to upgrade to (Thanks to Christian Kellermann)2205- Updated scheme-complete (Thanks to Alex Shinn)2206- fix for pathnames with whitespace in 'runtests.sh' on Windows2207- fix for 'normalize-pathname' with absolute pathname argument2208- added 'decompose-directory' to unit files2209- fix for 'local-timezone-abbreviation' - wasn't using the current time2210 so tz-name constant2211- deprecated 'make-pathname' separator argument221222134.2.022142215- added compiler option `-emit-all-import-libraries'2216- added `reexport'2217- added compiler and interpreter option `-setup-mode'2218- various minor performance improvements2219- fix for 'create-directory' when parents wanted2220- `for-each-line' and `for-each-argv-line' have been deprecated2221- chicken-install tries alternative servers if server responds with error2222- fixed load bug (ticket #72)2223- new library procedure `get-condition-property'2224- many mingw build fixes (thanks tp Fadi Moukayed)2225- setup-api: deprecated `cross-chicken' (use `cond-expand' or2226 `feature?' instead)2227- added topological-sort to data-structures unit; chicken-install2228 sorts dependencies before installing them2229- "-optimize-level 2" enables inlining by default2230- disable executable stack in assembly code modules (patch by2231 Zbigniew, reported by Marijn Schouten)2232- csc now always exits with a status code of 1 on errors (patch by Zbigniew)223322344.1.022352236- The new parameter "parantheses-synonyms" and the command-line2237 option "-no-parantheses-synonyms" allow disabling list-like behaviour2238 of "{ ... }" and "[ ... ]" tokens2239- The new parameter "symbol-escape" and the command-line2240 option "-no-symbol-escape" allows disabling "| ... |" symbol escape2241 syntax2242- Added command-line option "-r5rs-syntax" to disable CHICKEN-specific2243 read-syntax2244- Removed "macro?" and "undefine-macro!"2245- Support for Microsoft Visual Studio / MSVC has been dropped2246- The compiler provides now a simple flow-analysis pass that does2247 basic checking of argument-counts and -types for core library procedure2248 calls (new option "-scrutinize")2249- New compiler-options "-no-argc-checks", "-no-bound-checks",2250 "-no-procedure checks", "-no-procedure-checks-for-usual-bindings",2251 "-types TYPEFILE" and "-consult-inline-file FILENAME"2252- Added a "chicken-setup" stub-application to catch incorrect use of2253 this tool (which has been replaced in 4.0.0 with "chicken-install")2254- Changed "setup-install-flag" and "setup-verbose-flag" to2255 "setup-install-mode" and "setup-verbose-mode" in "setup-api" module,2256 the old names are still available but deprecated2257- Posix unit:2258 added "socket?", "block-device?" and "character-device?", deprecated2259 redundant "stat-..." procedures2260- Added "directory-exists?"2261- "(for-each (lambda ...) X)" is compiled as a loop2262- The argument-count check for format-strings for "[sf]printf" with a constant2263 string argument is done at compile-time226422654.0.022662267- removed `apropos' and `apropos-list' from the "utils" library unit;2268 available as an extension2269- removed texinfo and PDF documentation - this will possible be added back2270 later2271- replaced PCRE regex engine with Alex Shinn's "irregex" regular expression2272 package2273- removed `-extension' option2274- removed `-static-extensions' csc option and added `-static-extension NAME'2275- `regex' unit: removed `regexp*' and `regex-optimize'2276- added `CHICKEN_new_finalizable_gc_root()'2277- `length' checks its argument for being cyclic2278- removed custom declarations and "link-options" and "c-options" declarations2279- deprecated "-quiet" option to "chicken" program2280- added "-update-db" option to chicken-install2281- the compiler now suggests possibly required module-imports2282- moved non-standard syntax-definitions into "chicken-syntax" library unit2283- the pretty-printer prints the end-of-file object readably now2284- alternative conditional execution paths have separate allocation computation2285 (previously the allocation of all alternatives was coalesced)2286- removed unused "%kmp-search" from "srfi-13" library unit2287- expander handles syntax-reexports and makes unexported syntax available2288 for exported expanders in import libraries2289- added checks in some procedures in the "tcp" library unit2290- the macro system has been completely overhauled and converted2291 to hygienic macros2292- a macro-aware module system has been added2293- added "-sx" option to csi2294- removed the following deprecated functions:2295 [un]shift!2296 andmap ormap2297 byte-vector? byte-vector-fill!2298 make-byte-vector byte-vector2299 byte-vector-set! byte-vector-ref2300 byte-vector->list list->byte-vector2301 string->byte-vector byte-vector->string2302 byte-vector-length2303 make-static-byte-vector static-byte-vector->pointer2304 byte-vector-move! byte-vector-append!2305 set-file-position! set-user-id! set-group-id!2306 set-process-group-id!2307 macro? undefine-macro!2308- the situation-identifiers "run-time" and "compile-time" have2309 been removed2310- the compiler options "-check-imports", "-import" and "-emit-exports"2311 have been removed2312- new procedures:2313 strip-syntax2314 expand2315- new macros2316 define-syntax2317 module2318 export2319- the following macros have been removed:2320 define-foreign-record2321 define-foreign-enum2322 define-macro2323 define-extension2324- "local" mode, in which locally defined exported toplevel variables can2325 be inlined2326- new options and declarations "[-]local", "[-]inline-global" and "-emit-inline-file"2327- optimization levels changed to use inlining:2328 -optimize-level 3: enables -inline -local (but *not* -unsafe)2329 -optimize-level 4: enables -inline -local -unsafe2330- increased default inlining-limit to 202331- support for cross-module inlining2332- "make <VARIABLES> bench" runs the benchmark suite2333- "chicken-setup" has been replaced by new command line tools2334 "chicken-install", "chicken-uninstall" and "chicken-status", which are2335 more flexible and allow greater freedom when creating local or application-2336 specific repositories2337- extension-installation can be done directly from SVN repositories or a local2338 file tree2339- enabled chicken mirror site as alternative download location