~ 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 - `open-input-file' and `open-output-file' accept a file encoding,14 supported are currently UTF-8 (the default) and Latin-1 (ISO-8859-1).15 - `file-read', `file-write', 'set-pseudo-random-seed!' and `random-bytes'16 require a bytevector argument and do not accept strings.17 - `process-fork', `process-run', `process' and `process*' return now18 a process-object instead of a PID, use process record accessors to19 retrieve exit-status and input/output ports. `process-wait' and20 `process-signal' accept either a PID or a process object as21 argument.22 - File-locking operations in the (chicken file posix) module now use the23 flock(2) system call, operator over whole files, are thread-safe and24 use a simpler interface. `file-test-lock' has been removed.25 - `read-u8vector', `read-u8vector!' and `write-u8vector' have been26 removed, use the equivalent operations from the (chicken io)27 module instead.28 - Added `read-bytevector', `read-bytevector!' and `write-bytevector'29 to the (chicken io) module.30 - Removed `set-port-name!', use the SRFI-17 setter for `port-name'31 instead.32 - Added `port-encoding' to the (chicken port) module.33 - `make-input-port' and `make-output-port' take their optional34 port methods as keyword arguments now.35 - Locatives on strings are now indexed by code-point, not byte.36 - `symbol-escape' now also controls whether symbols are printed in37 escaped ("|...|") mode or not.38 - Symbol printing is stricter in deciding when symbols should be escaped39 or not.40 - The following primitives have been moved from (chicken base)41 to R7RS modules:42 - `exact-integer?`, `exact-integer-sqrt?', `vector-copy!',43 `make-parameter', `call/cc', `open-input-string',44 `open-output-string', `get-output-string', `input-port-open?',45 `output-port-open?', `parameterize' and `port?' moved from the46 (chicken base) to the (scheme base) module.47 - `case-lambda' moved from (chicken base) to (scheme case-lambda).48 - `features' moved from (chicken platform) to (scheme base).49 - `write-string' moved from (chicken io) to (scheme base) and its50 signature changed to the R7RS one.51 - `define-record-type' moved to (scheme base) and is generative,52 to be compliant with R7RS.53 - `syntax-error' has been removed from (chicken syntax) and is now a54 macro and part of (scheme base).55 - `record-instance?' and `make-record-instance' accept non-symbolic56 type specifiers to support generative record types.57 - The new (chicken number-vector) module now provides a superset of58 SRFI-4, including 64 and 128-bit complex number vectors, the `srfi-4'59 module is still available but exports only those procedures as are60 specified in SRFI-4.61 - The second (optional) parameter for `load' and `load-relative' may be62 either an environment or an evaluation procedure.63 - The module aliases `srfi-0', `srfi-6', `srfi-9', `srfi-11', `srfi-23',64 `srfi-39' and `srfi-98' have been removed (all of these are covered by65 R7RS).66 - The modules `r4rs', `r5rs', `r4rs-null' and `r5rs-null' have been67 renamed to `(scheme XXX)'.68 - Hexadecimal escape sequences in strings and extended symbols must be69 terminated by the `;' character, following R7RS.70 - The `#ci'/`#cs' read syntaxes have been removed, use71 `#![no-]fold-case'72 markers instead.73 - `include' and `include-relative' accept multiple filenames,74 `include-ci'75 has been added.76 - Added `include-path' to (chicken platform) module.77 - Added `number-vector-data' to (chicken memory representation) module.78 - The platform-identifier "mingw32" has been renamed to "mingw".79 - Library procedures that return paths now always convert them to80 contain forward slashes, 'make-pathname' always uses "/" for path81 separation.82 - Added `expand1' to (chicken syntax) module for expanding a macro83 only once, also added the ",x1" command to "csi" for this.84 - Added the (chicken version) module.8586- Syntax expander:87 - `syntax-rules' attempts to better support tail patterns with ellipses88 (#1736).8990- FFI changes:91 - Strings and symbols passed to foreign code are not copied, they are92 passed directly, any mutations done by external code will be visible on the93 Scheme side.94 - Complex numbers, C structs and unions can now be passed directly as95 arguments and returned as results when interfacing to C code.9697- Tools98 - The compiler and interpreter option `-r5rs-syntax' has been renamed to99 `-r7rs-syntax' and does not disable extended symbol syntax ("|...|")100 anymore.101 - The "feathers" debugger has been removed from the core and is now102 available as an egg.103 - The `set-describer!' procedure has been removed from the `csi' module.104 - The "csc" program now accepts tool flags (e.g. -compiler, -cc etc)105 which have paths with spaces in them without requiring the user to106 double-quote them. As a consequence, it no longer accepts programs107 with space separated flags for tool arguments (e.g.108 "csc -cc 'gcc -debug'" etc). If this is desired, write a short109 shell script which calls the tool with your flags.110 - `chicken-install' now locks the cache directory during111 egg-installation.112 - Added component type `installed-c-object' to egg format.113 - The `csc-options' and `link-options' configuration clauses in egg114 specifications now allow `custom-config' forms to produce arbitrary115 computed compiler and linker options.116117- Build system118 - A "configure" script is now used to prepare the sources for building119 everything. This simplifies the use of "make", allows more elaborate120 platform sanity checks and follows conventions.121 - On Windows the minimal "mingw" build is not supported anymore, a POSIX122 shell and the basic sete of command-line utilities is now required123 (formerly the "mingw-msys" build). Chris Wellons "w64devkit" is now124 the recommended toolchain. The platform identifier "mingw-msys" has125 been renamed to "mingw".126 - The system can now be built with "zig cc" as a C compiler/linker127 replacement.1281295.4.0130131- Security fixes132 - CVE-2022-45145: Neutralize possible escape characters in egg metadata133 to avoid arbitrary OS command injection during egg installation,134 reported by Vasilij Schneidermann who also provided the necessary135 patches to mitigate this problem.136 - The runtime option "-:b" has been removed, as it was deemed too137 insecure to be able to drop to a REPL from the CLI of any program.138 - Runtime option processing has been hardened: processing now stops on139 the first non-runtime option or after "-:", whichever comes first.140141- Core libraries142 - Fix type declarations for `file-select` (reported by Anton Idukov).143 - Change `create-temporary-{file,directory}` fallback code on Windows to144 use %USERPROFILE%/AppData/Local/Temp if that environment variable is set.145 - Added new thread-safe API for POSIX signals ("make-signal-handler",146 "signal-ignore" and "signal-default") and deprecated the existing one.147 - Added "make-finalizer" to execute finalizers in a thread-safe148 manner.149 - Added weak pairs to (chicken base), with similar behaviour to Chez Scheme.150 - Added "locative-index", kindly contributed by John Croisant.151 - Added "fp*+" (fused multiply-add) to "chicken.flonum" module152 (suggested by Christian Himpe).153 - Added flonum-specific hyperbolic functions and their inverse to154 "chicken.flonum" module (suggested by Christian Himpe).155 - The `process-execute` procedure now sets argv[0] to the unmodified156 filename. Previously, the directory part would be stripped.157 - Added support for embedded strings and characters in SRFI-4 vector158 literals.159 - read-with-source-info is now documented and officially supported,160 from the (chicken syntax) module. read/source-info is still exported161 from the undocumented internal (chicken compiler support) module, but162 using it from there is deprecated.163 - Added "export/rename" to (chicken module) for renaming identifiers on164 export.165 - The values of the TMPDIR, TMP and TEMP environment variables are no166 longer memoized (fixes #1830).167 - Condition objects produced by procedures that change errno now have168 an `errno' property.169 - Deprecated "chicken-home" and added "include-path" in the170 chicken.platform module.171 - Irregex has been updated to upstream 0.9.11 plus an additional fix172 for sre->string. The 0.9.11 release fixes a few problems related to173 utf-8 handling (which should not affect CHICKEN) and expands the174 definition for the 'whitespace character set to include vertical tab,175 carriage return and form feed.176177- Tools178 - Fix scripts generated by `chicken-install` on Windows to not quote `>>`179 when echoing into files which would result in empty egg-info files180 (reported and fixed by Jani Hakala).181 - The -R option for csi and csc now accepts list-notation like182 e.g. (srfi 1). Fixes #1809, reported by Wolfgang Corcoran-Mathe.183 - Fix shell quotation in options passed from csc to other tools.184 Fixes #1302, reported by Xin Wang.185 - The -prelude and -postlude options for csc work properly again.186 - chicken-install now retrieves the latest egg version when187 instructed to install an egg that's already installed (#1802).188 - When `location' is specified in setup.defaults, chicken-install189 will consider two location layouts when looking for eggs:190 <location>/<egg> and <location>/<egg>/<version>.191 - chicken-install: Fix #1684 (programs that specify192 component-dependencies should build-depend on their import193 libraries).194 - chicken-install now caches eggs installed from local locations.195 - chicken-install now accepts the -location command line option196 (short: -l) to specify local directories where to get egg sources197 from.198 - chicken-install now gives a warning on unexpected properties (#1492).199 - chicken-install now uses a directory specific for cache metadata200 (VERSION, STATUS and TIMESTAMP files) to avoid collisions with source201 files on case-insensitive file systems like on MacOS (#1753, reported202 by Kon Lovett).203204- Syntax expander205 - When passing a module as an environment to eval, correctly resolve206 identifiers in macro expansions (#1295 reported by Caolan McMahon).207 - Internal definitions honor rebindings of core special forms (#1132).208 - Globally defining an identifier previously bound to a macro now fully209 shadows the macro (#1166, reported by Michele La Monaca).210211- Compiler212 - When emitting types files, the output list is now sorted, to ensure213 deterministic build output (fixes #1783, reported by "ss2").214215- Build system216 - Fix compiler warnings about zero-sized `memset` (reported by Claude Marinier).217 - Disable broken test-create-temporary-file on Windows (reported by "jjhoo").218 - Drop use of XCODE_... environment variables on MacOS.219 - Add build directory to rpath on MacOS so that the test suite picks up correct220 libchicken, even if CHICKEN is already installed (thanks to Christian Himpe).221 - Default "cc" on BSD systems for building CHICKEN to avoid ABI problems222 when linking with C++ code.223224- Runtime system225 - Make line numbers available for error output and during syntax expansion226 in the interpreter as well as the compiler.2272285.3.0229230- Core libraries231 - In (chicken process-context posix), the setters for current-user-id,232 current-effective-user-id and current-group-id now check that the233 new user/group value is a fixnum instead of blindly passing it on234 to the C implementation (which would cause bogus user ids to be set).235 Fixes #1787, thanks to Christopher Brannon.236 - The srfi-17 module now exports the `getter-with-setter` and `setter`237 procedures, not just the set! macro (thanks to Lassi Kortela)238 - Fix hang in chicken-install -update-db on Windows (thanks to Mark239 Fisher for reporting and Jani Hakala for debugging and patch).240 - Fixed an inadvertant error during error reporting in the `numerator`241 and `denominator` procedures when passed non-finite flonums (#1730).242 - Fixed a bug where optimisations for `irregex-match?` would cause243 runtime errors due to the inlined specialisations not being244 fully-expanded (see #1690).245 - Irregex has been updated to upstream 0.9.10, which fixes behaviour246 of irregex-replace/all with positive lookbehind so all matches are247 replaced instead of only the first (reported by Kay Rhodes), and248 a regression regarding replacing empty matches which was introduced249 by the fixes in 0.9.7 (reported by Sandra Snan). Also, the250 http-url shorthand now allows any top-level domain and the old251 "top-level-domain" now also supports "edu" (fixed by Sandra Snan).252 Also, a problem was fixed with capturing groups inside a kleene253 star, which could sometimes return incorrect parts of the match.254 Finally, "bol" handling was fixed to handle newlines consistently255 so that multiple matches don't overlap (reported by Sandra Snan).256 - current-milliseconds has been deprecated in favor of the name257 current-process-milliseconds, to avoid confusion due to naming258 of current-milliseconds versus current-seconds, which do something259 quite different. Also, its definition has been tweaked to260 guarantee that it returns the time since process startup. On261 Windows, it will now return sane values after 24 days of uptime.262 On UNIX, the values returned will be precise to the millisecond263 instead of rounded down to the nearest second at startup (which264 would result in erratic startup times).265 - The default mode for files created by `file-open' has been changed266 to 0666 (plus whatever change the effective umask applies), rather267 than 0744 (see #1698).268 - Fixed type database entry for "log" with second arg (fixes #1725).269 - Made topological-sort behave better when dependency target is listed270 multiple times by concatenating dependencies (fixes #1185).271272- Module system273 - Reexported macros now work when the reexporting module redefines274 identifiers from the original (fixes #1757, reported by Sandra Snan).275 - When using "except" in "import" to omit reexported macros,276 they are really not imported (#1771, reported by Sandra Snan).277278- Runtime system279 - Sleeping primordial thread doesn't forget mutations made to280 parameters in interrupt handlers anymore. (See #1638. Fix281 contributed by Sebastien Marie)282 - A feature corresponding to the word size is available283 regardless of the word size (#1693)284 - The default maximum heap size on 64-bit platforms is now the285 theoretical maximum addressable memory size (#1675). Use -:m286 if you would like to override this at run-time.287 - Deprecated C_(a_i_current_)milliseconds in favor of288 C_(a_i_)current_process_milliseconds to match the Scheme-level289 deprecation of current-milliseconds.290 - Officially deprecated C_pair() in favor of C_a_pair(); it has291 been deprecated for years.292 - At program cleanup, finalizers are only forced when the live293 finalizer count is non-zero294 - The symbol `srfi-87` has been added to the list of built-in295 feature identifiers.296 - Garbage collection algorithm has been changed to reduce thrashing297 when heap is almost full, by growing the heap sooner. A new -:hf298 option was added to tweak when heap growth should occur.299 - Added `-:R' runtime option to initialize rand() state300 deterministically (should help with #1650 and benchmarking).301302- Compiler303 - Statically linked programs using built-in libraries are supported304 again (fixes #1788, a regression from 5.2.0).305 - Avoid re-using argvector when inline rest operations are being306 used in CPS calls (#1703, thanks to Jakob L. Keuze).307 - An `emit-types-file` declaration has been added, which corresponds308 to the compiler flag of the same name (#1644, thanks to Marco Maggi309 for the suggestion).310 - Fixed a bug caused by a bad interaction between two optimizations:311 argvector rest ops would be applied even if a procedure already got312 its rest arg consed at the call site (#1756, thanks to Sandra Snan).313314- Build system315 - Fix build with tcc.316 - Fix a few tests on Windows so the suite passes once again.317 - Auto-configure at build time on most platforms. Cross-compilation318 still requires PLATFORM to be set, and it can still be provided319 manually, but it is no longer required in the common case.320 - Fix Linux to MingW cross-compilation (#1768, thanks to Théo Cavignac)321 - The `clean' target for make now also removes build configuration files.322 - The `distclean' target for make has been removed (now `clean' does what323 `distclean' used to do).324325- Tools326 - Fix a problem with egg installation scripts on Windows, where the327 platform was not correctly identified, depending on the shell used328 during installation of the core system (thanks again to Mark Fisher329 for reporting and helping in finding the culprit).330 - Fixed a bug in chicken-install (#1744) that would cause331 `Error: (string->number) bad argument type: #!eof` in some cases.332 - If chicken-install has a program prefix/suffix, it now writes to a333 cache directory matching its program name (#1713, thanks to Alice Maz)334 - Fixed bug in chicken-install regarding variable quotation on UNIX-like335 systems which prevented installation into paths with spaces (#1685).336 - Fixed a similar bug in chicken-install for paths with spaces on mingw337 and mingw-msys (#1727, thanks to Josh Helzer for reporting and Vasilij338 Schneidermann for the patch).339340- Module system341 - Fixed a memory leak when calling (import) multiple times in a row342 on the same module (#1772; reported by "plugd" on IRC).3433445.2.0345346- Core libraries347 - Fix `memory-statistics` by returning semi-space bytes and used348 semi-space bytes like the documentation says. Old implementation349 returned full-heap size and (full-heap - used-semi-space).350 - for-each and map now behave consistently in compiled and interpreted351 mode, like in SRFI-1. They now stop when the shortest list is352 exhausted instead of raising an exception (fixes #1422).353 - There is now a srfi-88 module which contains just the three354 procedures from the (chicken keyword) module defined by the SRFI.355 - A feature identifier named "srfi-88" is now registered.356 - The procedures `record-printer` and `set-record-printer!` and a357 corresponding SRFI-17 setter have been added. These deprecate358 `define-record-printer` which isn't a "real" definition (see #1294).359 - On Windows, `decompose-directory` no longer crashes when a drive360 letter is present in the supplied path string.361 - irregex-replace[/all] have been fixed for empty matches, so they362 will no longer drop characters and ignore the replacement (#1661).363 - Irregex has been updated to upstream 0.9.7, which also improves364 how empty matches are treated in irregex-fold and irregex-split.365366- Runtime system367 - Quoted empty keywords like ||: and :|| are now read like prescribed368 by SRFI-88 in the corresponding keyword mode. Symbols containing369 quoted empty prefixes or suffixes like ||:abc and abc:|| will be370 read correctly as symbols now (fixes #1625, thanks to Andy Bennett).371 - IEEE floating point negative zero is now properly handled: it can372 be read, written and distinguished by eqv? and equal?, but not =373 (fixes #1627, thanks to John Cowan).374 - ##sys#check-exact and its C implementations C_i_check_exact and375 C_i_check_exact_2 have been deprecated (see also #1631).376 - When garbage collector is manually invoked from a finalizer, raise377 an error instead of hanging forever (fixes #1586).378 - define-record-type will now give an error if the constructor379 definition refers to field that's not listed elsewhere (see #1633)380 - Added new -:hu option to set the memory usage low watermark381 percentage at which the heap should be shrunk, and changed the382 calculation to actually reflect this (see #1379).383384- Compiler385 - Fixed a bug in lfa2 pass which caused "if" or "cond" nodes to be386 incorrectly unboxed if the "else" branch had a flonum result type387 (#1624, thanks to Sven Hartrumpf)388 - Inline files no longer refer to unexported foreign stub functions389 (fixes #1440, thanks to "megane").390 - In some cases, rest argument lists do not need to be reified, which391 should make using optional arguments and case-lambda faster (#1623).392 - Values from foreign types which have an argument or return value393 converter are no longer inferred to have the Scheme type which394 corresponds to the raw foreign type, which was incorrect (#1649).395396- Module system397 - Trying to export a foreign variable, define-inlined procedure or398 define-constant variable gives a friendly error instead of saying399 the variable doesn't exist (fixes #1346).400 - When modules are registered, they no longer pollute the global401 environment with imports made in that module (fixes #1548)402403- Tools404 - The new "-module-registration" options causes module registration405 code to always be included in the program, even when it has also406 been emitted as a separate file (for example with "-J").407 - chicken-install now correctly checks server response code to avoid408 interpreting error response bodies (like 404, 500) as Scheme code.409 - chicken-install now follows HTTP redirects when downloading eggs.410 - chicken-install will now change to the correct drive before411 attempting to change to the egg directory (fixes #1647).4124134145.1.0415416- Core libraries417 - Symbols ending or starting with a colon are now always pipe-quoted418 when written by `write` to ensure they can be read back with a419 different keyword-style setting.420 - Read-write invariance of special symbols starting with #! other421 than #!key, #!rest or #!optional is now preserved (#1572).422 - When using (set-file-position!) on a port, its EOF status will now423 be reset.424 - In (chicken file posix), the values of perm/irgrp, perm/iwgrp,425 perm/ixgrp, perm/iroth, perm/iwoth and perm/ixoth are now correctly426 defined (they were all for "usr"; #1602, thanks to Eric Hoffman).427 - In (chicken file posix), `file-truncate` now accepts also accepts428 port objects, for consistency with other file procedures.429 All such procedures from (chicken file posix) now have the correct430 types in types.db (fixes #1609, thanks to Robert Jensen).431 - Add the system-config-directory and system-cache-directory procedures432 in the chicken.platform module. These procedures follow the XDG433 specification and also give sensible results on Windows.434 - Fix get-environment from (chicken process-context) to raise an435 error when passed #f instead of segfaulting.436 - Qualified symbols (##foo#bar style) are no longer encoded by a437 byte prefix inside the symbol name. This ensures read-write438 invariance of symbols which start with a low-byte character439 (fixes #1077, except for keywords, which start with NUL bytes).440 - Fix a missing export (list->s64vector) in SRFI-4.441442- Runtime system443 - Keywords are now distinct types; they are not a subtype of symbols.444 - Use arc4random on FreeBSD (thanks to Tobias Kortkamp and gahr)445 - Removed the unused, undocumented (and incorrect!) C functions446 C_delete_symbol_table and C_set_symbol_table.447 - Continuations which discard additional values beyond the first no448 longer accept multiple values via direct invocation after being449 captured through `call/cc`, only via `values` (revert of #1390,450 due to #1601)451 - SRFI-4 vector predicates, reference, set and length procedures452 should now be faster in tight loops as they're inlineable (#757).453 - Keywords are now interned in a separate keyword table, not in the454 standard symbol table. This brings full read-write invariance455 for symbols (they can now also start with NUL bytes). Keywords456 no longer have plists. Fixes #1576.457 - Increased the "binary compatibility version" to 11.458459- Compiler460 - Restored optimized implementations of =, +, -, /, * and quotient in461 fixnum-arithmetic mode (fixes #1604 mostly; thanks to "chickendan").462 - Added an optimization pass for reducing the amount of boxing of463 intermediate floating point values, enabled by the "-lfa2" compiler464 option.465 - The "lfa2" pass is now enabled at optimization levels 2 or higher.466467- Module system468 - When you try to import the module you are currently defining into469 itself, an error will be raised. This prevents an infinite loop in470 the compiler when later trying to import that same module (fixes471 #1506, thanks to Kristian Lein-Mathisen).472473- Foreign function interface474 - Improved hygiene in FFI macro expansions, which means you don't475 have to import "scheme" or "(chicken base)" for them to work.476477- Type system478 - It is now possible to quote free variables in type declarations,479 which acts as shorthand for `forall' (thanks to "megane")480481- Tools482 - csi now uses (system-config-directory) to find csirc and falls back to483 $HOME/.csirc when needed.484 - chicken-install now uses (system-config-directory) to find a user485 defined setup.defaults file ; it also uses (system-cache-directory)486 for its egg cache directory when the CHICKEN_EGG_CACHE environment487 variable is not defined.488489- Egg specifications490 - Allows "cond-expand" and "error" forms in egg specification files.491 - Add "c-object" and "object" properties to link separately compiled492 C objects into CHICKEN code.4934944955.0.0496497- Runtime system498 - Added support for the full numeric tower, including various new499 procedures taken from the "numbers" egg. All calculations will500 now return exact numbers where possible, so code relying on flonums501 being returned may need to be changed if rational numbers do not502 provide the desired performance.503 - Port directionality has been generalized from a simple input/output504 flag to a bitmap, to allow for multidirectional ports.505 - Weak symbol GC is faster, simpler, and can now collect all506 unreferenced symbols instead of a maximum of 997 per major GC.507 - The -:w option has been removed; symbols are now always collected.508 - Increased the "binary compatibility version" to 9.509 - Continuations which discard additional values beyond the first now510 also accept multiple values via direct invocation after being511 captured through `call/cc`, not just via `values` (#1390)512 - Removed the deprecated C_locative_ref and C_mutate2 C functions.513 - The trace buffer no longer holds on to thread objects, allowing them to514 be garbage collected sooner (#1356, thanks to Kristian Lein-Mathisen)515 - On Cygwin and MinGW, the "build-platform" now corresponds to the516 tool chain used (gnu, clang, unknown) like on *nix, while the517 software-version is now "cygwin" or "mingw32" instead of "unknown".518 This also means the features list will now contain the tool chain519 on all platforms.520 - Symbols starting with #% are no longer treated specially and need521 to be quoted with pipes. This makes the "%" sign available for use522 in custom/user-defined sharp-sign read syntax.523524- Compiler525 - Fixed an off by one allocation problem in generated C code for (list ...).526 - The "-scrutinize" compiler option has been removed.527 - The "-module" compiler option (aliased as "-m") now expects a module name.528 - The generated C output of the compiler is now deterministic: it529 will be bit-for-bit identical when compiling the same Scheme file530 with the same version of the compiler.531 - the "-consult-type-file" and "-emit-type-file" options have been renamed532 to "-consult-types-file" and "-emit-types-file", respectively.533534- Tools535 - The new "-link" option to csc allows linking with objects from extensions.536 - The new "-libdir" option to csc allows overriding the runtime library537 directory.538 - The ambiguous "-l<libname>" option for csc has been removed (#1193).539 - Removed deprecated "-n" shorthand for "-emit-inline-file" from csc.540 - Removed "chicken-bug" tool.541542- Core libraries543 - Removed support for memory-mapped files (posix), queues544 (data-structures), binary-search (data-structures), scan-input-lines545 (utils), group-information (posix) object-eviction (lolevel), and546 compile-file (utils). These are now available as eggs.547 - Removed the srfi-1, srfi-13, srfi-14, srfi-18, srfi-69, and utils548 units. These are now available as eggs.549 - Added the `executable-pathname` procedure for retrieving a path to550 the currently-running executable.551 - Removed all support for SWIG.552 - Removed interrupts-enabled declaration specifier.553 - `sleep` now suspends the current thread when threading is enabled,554 otherwise it sleeps the process. The new `process-sleep` procedure555 in unit posix can be used to sleep the process unconditionally.556 - `with-error-output-to-port' from the ports module has been renamed557 to the more common `with-error-to-port', and `with-error-to-string'558 has been added for completeness (thanks to Michael Silver).559 - A new `make-bidirectional-port' procedure has been added to the560 ports unit that will combine separate input- and output- ports into561 a single bidirectional port.562 - New `input-port-open?` and `output-port-open?` procedures have been563 added for testing whether a port is open in a specific direction.564 - An `include-relative` form has been added to the (chicken base) module.565 This works like `load-relative` but for textual inclusion.566 - Keywords are now always written in "portable" style by WRITE, so567 that the reader's keyword style doesn't need to match the writer's.568 - The environment variable `CHICKEN_PREFIX` has been removed.569 - Added the `glob->sre` procedure to the irregex library.570 - Removed the `get-host-name' and `system-information' procedures.571 These are available in the "system-information" egg.572 - Removed the `eval-when`, `select` and `ensure` macros. These are573 available in the "miscmacros" egg.574 - Removed the require-extension-for-syntax macro.575 - Renamed bit-set? to bit->boolean because of swapped argument order576 with respect to SRFI-33 and SRFI-60, which was confusing (fixes577 #1385, thanks to Lemonboy).578 - file-{read,write,execute}-access will now raise an exception when579 the file doesn't exist or some other non-access related problem is580 detected (fixes #1386, thanks to Vasilij Schneidermann).581 - `change-file-mode` was renamed to set-file-permissions! and SRFI-17582 generalized set! support has been added for `file-permissions`.583 This procedure now also accepts a file descriptor or a port.584 - `file-permissions` now returns one value: the permission integer.585 - `read-file` has been renamed to `read-list`.586 - `read-all` was dropped, as `read-string` with #f as its NUM argument587 is equivalent.588 - `read-lines` and `read-all` no longer accept a string naming a file,589 only ports.590 - The procedures for random numbers have been reimplemented;591 access to system-specific entropy is available, together with a reasonably592 good pseudo random number generator (WELL512).593 - `glob` now returns an empty list for non-existent or inaccessible594 directories, instead of erroring out.595 - `file-copy' and `file-move' have been renamed to `copy-file' and596 `move-file', for consistency with `delete-file' and `rename-file'.597 - `rename-file' now refuses to overwrite an existing file unless an598 optional "clobber" argument is provided.599 - The `r4rs` module no longer exports `eval`, which was not in R4RS.600 - `process`, `process*` and `process-execute` now expect lists of the form601 (("NAME" . "VALUE") ...) instead of the previous (("NAME=VALUE") ...)602 as their environment argument.603 - `repository-path` is now a parameter containing a list of strings instead604 of a string, as the search path for libraries can now contain multiple605 directories.606 - `file-read-access?`, `file-write-access?` and `file-execute-access?` have607 been renamed `file-readable?`, `file-writable?` and `file-executable?`608 into the (chicken file) module.609610- Module system611 - The compiler has been modularised, for improved namespacing. This612 means names from the compiler should not leak out into the compiled613 program's (macro) namespace anymore.614 - The core units have been converted to modules under the "chicken"615 namespace.616 - Added support for list-style library names.617 - The "use" and "use-for-syntax" special forms have been removed618 in favor of "import" and "import-for-syntax" to reduce confusion.619 - Module imports are now lexically scoped: identifiers provided by620 an (import ...) inside (let ...) won't be visible outside that let.621 - Modules implementing an interface can now correctly export extra622 identifiers (bug reported by Martin Schneeweis, fix by "megane").623624- Syntax expander625 - Removed support for (define-syntax (foo e r c) ...), which was626 undocumented and not officially supported anyway.627 - Removed support for normal "lambda" forms as syntax transformers,628 which has been deprecated since 4.8.0.629 - define and friends are now aggressively rejected in "expression630 contexts" (i.e., anywhere but toplevel or as internal defines).631 - define-record and define-record-type now create record types632 which are tagged with the module in which they're defined, so633 predicates no longer return #t for records with the same tag634 defined in another module. This tag is now also available under635 an identifier that matches the record type name (fixes #1342).636 - `include` now splices included expressions in the context in which637 the inclusion appears and does not treat the expressions as toplevel638 expressions by default.639640- Eggs management641 - Egg-installation and building has been completely overhauled.642 - .meta + .setup files have been merged into a single declarative643 ".egg" file.644 - More static checks for egg descriptions, simplified generation645 of OS-specific build + install commands that is (hopefully)646 more practical for package maintainers.647 - Egg sources are cached locally to reduce download and rebuild648 times.649 - Dropped many obscure or unimportant options and features from650 `chicken-install`: (`-keep-installed`, `-reinstall`, `-proxy`,651 `-no-install`, `-username`, `-password`, `-init`, `-deploy`,652 `-keep-going`, `-scan`, `-csi`, `-show-depends`, `-show-foreign-depends`,653 `-prefix`.654 - Added new "-from-list" option to chicken-install.655 - Eggs can now be installed and located in multiple directories,656 using the `CHICKEN_REPOSITORY_PATH` +657 `CHICKEN_INSTALL_REPOSITORY`658 environment variables.659 - Static compilation of eggs is now fully supported and static660 versions of compiled eggs are available by default.661 - In a statically built chicken, the egg-tools ("chicken-install", "...-status",662 "...-uninstall") are still available, but only support static compilation663 of eggs.664665- Foreign function interface666 - The foreign type specifier "ssize_t" is now accepted, and "size_t"667 arguments now only accept positive integers. Return values of668 type size_t are no longer truncated on 32-bit platforms.6696706714.13.0672673- Security fixes674 - CVE-2017-6949: Remove unchecked malloc() call in SRFI-4 constructors675 when allocating in non-GC memory, resulting in potential 1-word676 buffer overrun and/or segfault (thanks to Lemonboy).677 - CVE-2017-9334: `length' no longer crashes on improper lists (fixes678 #1375, thanks to "megane").679 - CVE-2017-11343: The randomization factor of the symbol table was680 set before the random seed was set, causing it to have a fixed value681 on many platforms.682683- Core Libraries684 - Unit "posix": If file-lock, file-lock/blocking or file-unlock are685 interrupted by a signal, we now retry (thanks to Joerg Wittenberger).686 - char-ready? on string ports now also returns #t at EOF, as per R5RS;687 in other words, it always returns #t (thanks to Moritz Heidkamp)688 - Unit srfi-4: Fixed typo that broke SRFI-17 generalised set! syntax689 on s8vectors (thanks to Kristian Lein-Mathisen).690 - Large literals no longer crash with "invalid encoded numeric literal"691 on mingw-64 (#1344, thanks to Lemonboy).692 - Unit irregex: Fix bug that prevented multibyte UTF-8 character sets693 from being matched correctly (Thanks to Lemonboy and Chunyang Xu).694695- Runtime system:696 - The profiler no longer uses malloc from a signal handler which may697 cause deadlocks (#1414, thanks to Lemonboy).698 - The scheduler no longer indirectly hangs on to the old thread699 when switching to a new one, which caused excessive memory700 consumption (#1367, thanks to "megane").701 - C++ programs no longer fail with a symbol lookup error when702 compiled with debugger support (-d3 or -debug-info).703704- Syntax expander705 - Renaming an identifier twice no longer results in an undo of the706 rename (fixes #1362, thanks to "megane").707708- Build system709 - Fixed broken compilation on NetBSD, due to missing _NETBSD_SOURCE.710 - Fixed compilation on DragonflyBSD due to no feature macro support711 in its standard C library (thanks to Markus Pfeiffer).712713- Compiler714 - The scrutinizer no longer uses 'fixnum as the type for fixnums715 that might not fit into a fixnum on 32-bit architectures.716717- Foreign function interface718 - Correctly calculate memory requirements of Scheme objects produced719 from foreign types with "const" qualifiers, avoiding memory720 corruption (#1424, thanks to Vasilij Schneidermann and Lemonboy)721 - Do not read beyond temporary stack buffer, which could lead to722 a crash when returning from a foreign callback (#1428).7237244.12.0725726- Security fixes727 - CVE-2016-6830: Fix buffer overrun due to excessively long argument728 or environment lists in process-execute and process-spawn (#1308).729 This also removes unnecessary limitations on the length of730 these lists (thanks to Vasilij Schneidermann).731 - CVE-2016-6831: Fix memory leak in process-execute and732 process-spawn. If, during argument and environment list733 processing, a list item isn't a string, an exception is thrown,734 in which case previously malloc()ed strings weren't freed.735 - CVE-2016-9954: Irregex has been updated to 0.9.6, which fixes736 an exponential explosion in compilation of nested "+" patterns.737738- Compiler:739 - define-constant now correctly keeps symbol values quoted.740 - Warnings are now emitted when using vector-{ref,set!} or one741 of take, drop, list-ref or list-tail with an out of range index742 for vectors and proper lists of a definitely known length.743 - The scrutinizer will no longer drop knowledge of the length of a744 vector. It still drops types of its contents (which may be mutated).745 - Fixed incorrect argvector restoration after GC in directly746 recursive functions (#1317).747 - "Direct" procedure invocations now also maintain debug info (#894).748749- Syntax expander750 - DSSSL lambda lists have improved hygiene, so they don't need751 the chicken or scheme modules to be imported in full (#806).752 - The let-optionals* macro no longer needs "quote", "car" and "cdr"753 to be imported and bound to their default values (#806).754755- Runtime system:756 - C_locative_ref has been deprecated in favor of C_a_i_locative_ref,757 which is faster because it is inlined (#1260, thanks to Kooda).758 - The default error handler now truncates very long condition759 messages (thanks to Lemonboy).760 - Weak symbol GC (-:w) no longer drops random symbols (#1173).761 - The number of arguments to procedures, both via "apply" and direct762 invocation, are now limited only by the C stack size (#1098).763 - "time" macro now shows peak memory usage (#1318, thanks to Kooda).764 - Avoid crashes in ffi callbacks after GC (#1337, thanks to cosarara).765766- Core libraries:767 - Irregex has been updated to 0.9.5, which fixes matching of all "bow"768 occurrances beyond the first with irregex-fold (upstream issue #14).769 - Keywords are more consistently read/written, like symbols (#1332).770 - SRFI-39: When jumping out of a parameterized dynamic extent,771 "parameterize" now remember the actual values, so when jumping back772 in, they are restored (fixes #1336, thanks to Joo ChurlSoo).773 This was a regression caused by the fix for #1227.774775- Tools:776 - "chicken-install"777 - When installing eggs in deploy mode with "-keep-installed", eggs778 under the prefix won't unnecessarily be reinstalled (#1144).779 - Added new option "-no-install-deps" which inhibits automatic780 installation of dependencies, useful with "-prefix" (#1298).7817827834.11.0784785- Security fixes786 - Specialisation rules for string-{ref,set!}, bit-set?787 and move-memory no longer use unchecked C functions which could788 result in undefined behaviour, including buffer overruns (#1216).789790- Platform support791 - CHICKEN now supports the Linux X32 ABI (thanks to Sven Hartrumpf).792793- Tools794 - Feathers now has a more neutral color scheme and larger font size.795 - With the -dir option, feathers can now correctly find source code.796797- Runtime system:798 - The calling convention of CPS procedures has been changed to799 use "argument vectors" instead of C calling convention.800 - The C API of C_values(), C_do_apply() and how to invoke CPS801 functions has changed. The C_procN() macros have disappeared.802 The manual example in "Accessing external objects" for C_values803 has been updated. See also the "numbers" egg for examples on804 how to support pre- and post-4.10.1 CHICKENs simultaneously.805 - Apply hack is no longer used; the limitation of 128 arguments806 has been lifted for platforms which had no apply hack.807 - Increased the "binary compatibility version" to 8.808 - Delivery of signals in other OS-level threads is now dealt with809 in a more robust way (#1232) (thanks to Joerg Wittenberger).810 - Compiled programs with large literals won't crash on startup (#1221).811 - Comparisons of closures now behave in a stable way, whether or not812 the code was compiled with the -no-lambda-info option (#1041).813 - The signal handling code can no longer trigger "stack overflow" or814 "recursion too deep or circular data encountered" errors (#1283).815816- Compiler:817 - Specializations on implicit "or" types like "number" or "boolean" now818 work, removing the requirement for the inferred types to match819 declared types exactly. Specializations are matched from first to820 last to resolve ambiguities (#1214).821 - Compiler rewrites for char{<,>,<=,>=,=}? are now safe (#1122).822 - When requesting to emit import libraries that don't exist, the823 compiler now gives an error instead of quietly continuing (#1188).824 - Don't silently truncate huge literals (thanks to Claude Marinier).825826- Core libraries827 - try-compile from setup-api cleans up temporary output files (#1213).828 - SRFI-18: thread-join! no longer gives an error when passed a829 thread in the "sleeping" state (thanks to Joerg Wittenberger)830 - SRFI-18: mutex-lock! will not set ownership of mutexes when831 passed #f as the owner (#1231), not disown a mutex from owner if832 locking fails for timeout and not keep the last thread which held833 a mutex until the next lock (thanks to Joerg Wittenberger).834 - SRFI-39: When a parameter's "guard" procedure raises an exception,835 "parameterize" now correctly resets the original values of all836 parameters (fixes #1227, thanks to Joo ChurlSoo).837 - Irregex has been updated to 0.9.4, which fixes severe performance838 problems with {n,m} repeating patterns (thanks to Caolan McMahon).839 - Unit "posix": The following posix procedures now work on port840 objects: file-stat, file-size, file-owner, file-permissions,841 file-modification-time, file-access-time, file-change-time,842 file-type and all procedures using file-type. These are:843 regular-file?, symbolic-link?, block-device?, character-device?844 fifo? and socket?.845 - Unit "posix": When "file-close" is interrupted it will retry,846 to avoid leaking descriptors (thanks to Joerg Wittenberger).847 - Unit "data-structures": alist-{update[!],ref} were made consistent848 with srfi-1 in the argument order of comparison procedures.849 - Unit "lolevel": locative-ref has been fixed for locatives of u32850 and s32vectors (thanks to Joerg Wittenberger for pointing this out).851 - string->number now signals exceptions if passed a bad base instead852 of segfaulting (#1272; reported by "Tilpner" on IRC).853854- Tools855 - A debugger is now available, known as "feathers", which allows856 basic source-level debugging of compiled Scheme code.857 - A statistical profiler has been added, enabling sampling-based858 runtime profiling of compiled programs.859 - "chicken-install"860 - When installing eggs in deploy mode, already satisfied861 dependencies aren't reinstalled every time (#1106).862 - "chicken-uninstall"863 - -prefix and -deploy options were added, matching chicken-install.864 - "chicken-status"865 - -prefix and -deploy options were added, matching chicken-install.866 - The -sudo and -s options for chicken-install and chicken-uninstall867 now honor a "SUDO" environment variable (thanks to Timo Myyrä).868869- Syntax expander870 - Mixed internal define/define-values are now correctly ordered, so871 later defines can refer to earlier define-values (#1274).8728734.10.0874875- Security fixes876 - CVE-2014-6310: Use POSIX poll() on Android platform to avoid877 potential select() buffer overrun.878 - CVE-2014-9651: substring-index[-ci] no longer scans beyond string879 boundaries.880 - CVE-2015-4556: string-translate* no longer scans beyond string881 boundaries.882883- Core libraries884 - alist-ref from unit data-structures now gives an error when passed885 a non-list, for consistency with assv/assq/assoc.886 - Unit tcp now implicitly depends on ports instead of extras.887 This may break programs which don't use modules and forgot to888 require extras but use procedures from it.889 - SRFI-13: fix string-copy! in cases source and destination strings'890 memory areas overlap (#1135).891 - SRFI-1: Check argument types in lset and list= procedures (#1085).892 - Fixed another, similar bug in move-memory! for overlapping memory.893 - Fixed broken specialisation for move-memory! on pointer types.894 - Fixed broken specialisation for irregex-match-num-submatches.895 - Fixed bug in make-kmp-restart-vector from SRFI-13.896 - Removed deprecated implicit expansion of $VAR- and ~ in pathnames.897 The ~-expansion functionality is now available in the898 "pathname-expand" egg (#1001, #1079) (thanks to Florian Zumbiehl).899 - normalize-pathname has been simplified to avoid adding trailing900 slashes or dots (#1153, thanks to Michele La Monaca and Mario Goulart).901902- Unit srfi-4:903 - write-u8vector has been made more efficient (thanks to Thomas Hintz).904 - read-u8vector has been made more efficient (thanks to Andy Bennett905 for pointing this out and testing an improvement).906907- Unit lolevel:908 - Restore long-lost but still documented "vector-like?" procedure (#983)909910- Unit "files":911 - normalize-pathname no longer considers paths starting with ".//"912 as absolute (#1202, reported by Haochi Kiang).913914- Unit "posix":915 - set-file-position! now allows negative positions for seek/cur (thanks916 to Seth Alves).917 - file-mkstemp now works correctly on Windows, it now returns valid918 file descriptors (#819, thanks to Michele La Monaca).919 - create-directory on Windows now creates all intermediate920 directories when passed #t as second parameter.921922- Runtime system:923 - Removed several deprecated, undocumented parts of the C interface:924 C_zap_strings, C_stack_check, C_retrieve, C_retrieve_proc,925 C_retrieve_symbol_proc, C_i_foreign_number_vector_argumentp,926 C_display_flonum, C_enumerate_symbols927 - Removed several deprecated and undocumented internal procedures:928 ##sys#zap-strings, ##sys#round, ##sys#foreign-number-vector-argument,929 ##sys#check-port-mode, ##sys#check-port*930 - SIGBUS, SIGILL and SIGFPE will now cause proper exceptions instead931 of panicking (thanks to Joerg Wittenberger).932933- Module system934 - Allow functor arguments to be optional, with default implementations.935 - Fixed a bug that prevented functors from being instantiated with936 built-in modules.937 - Fixed generation of import libraries for instantiated functors938 (#1149, thanks to Juergen Lorenz).939940- Syntax expander941 - define-values, set!-values and letrec-values now support full lambda942 lists as binding forms943 - cond expands correctly when a constant is used in combination with =>944 (thanks to Michele La Monaca)945946- C API947 - Removed deprecated C_get_argument[_2] and948 C_get_environment_variable[_2] functions.949 - C_mutate2 has been deprecated in favor of C_mutate950 - chicken.h can be included in C++ programs in strict C++11 mode951 without compiler errors on Linux (thanks to "Izaak").952953- Foreign function interface954 - The foreign type specifier "scheme-pointer" now accepts an optional955 C pointer type (thanks to Moritz Heidkamp and Kristian Lein-Mathisen).956 - Type hinting for foreign-primitives now allows returning multiple957 values when no return type has been specified.958959- Compiler960 - Fixed an off by one allocation problem in generated C code for (list ...).961962- Build system963 - MANDIR was renamed to MAN1DIR and TOPMANDIR was renamed to MANDIR964 in order to comply with standard Makefile practice in UNIX.965 - INCDIR was renamed to CHICKENINCDIR, and now derives from966 INCLUDEDIR, which defaults to $(PREFIX)/include967 - BINDIR, LIBDIR, SHAREDIR, INCLUDEDIR, MANDIR, MAN1DIR, DOCDIR,968 CHICKENINCDIR and CHICKENLIBDIR will now also be taken from969 the environment, if present (like PLATFORM, DESTDIR and PREFIX).970971- Tools972 - "csc"973 - On Cygwin, -static now works again (thanks to Michele La Monaca)974 - "chicken-install"975 - When using chicken-install -retrieve, and an error occurs during976 retrieval (or the egg doesn't exist), the egg's directory is977 now properly cleaned up (#1109, thanks to Alex Charlton)978 - "chicken"979 - The -r5rs-syntax option did nothing; this has been fixed.9809814.9.0982983- Security fixes984 - CVE-2014-3776: read-u8vector! no longer reads beyond its buffer when985 length is #f (thanks to Seth Alves).986 - CVE-2013-4385: read-string! no longer reads beyond its buffer when987 length is #f.988 - CVE-2013-1874: ./.csirc is no longer loaded from the current directory989 upon startup of csi, which could lead to untrusted code execution.990 (thanks to Florian Zumbiehl)991 - CVE-2013-2024: On *nix, the qs procedure now single-quotes everything992 instead of relying on a blacklist of shell characters to be escaped.993 On Windows, it properly duplicates double-quote characters. (thanks994 to Florian Zumbiehl)995 - CVE-2013-2075: Use POSIX poll() in other places where select() was996 still being used. (thanks to Florian Zumbiehl and Joerg Wittenberger)997 - CVE-2012-6122: Use POSIX poll() on systems where available. This avoids a998 design flaw in select(); it supports no more than FD_SETSIZE descriptors.9991000- Core libraries1001 - Fix subvector when the TO optional argument equals the given vector1002 length (#1097)1003 - Unit extras now implicitly depends on ports. ports no longer1004 implicitly depends on extras. This may break programs which don't1005 use modules and forgot to require ports but use procedures from it.1006 - Support has been added for the space-safe R7RS macro "delay-force".1007 - Export file-type from the posix unit (thanks to Alan Post).1008 - SRFI-4 s8vectors now work correctly in compiled code on PowerPC and ARM.1009 - thread-join! now works correctly even if the waiting thread was1010 prematurely woken up by a signal.1011 - unsetenv has been fixed on Windows.1012 - The process procedure has been fixed on Windows.1013 - Nonblocking behaviour on sockets has been fixed on Windows.1014 - Possible race condition while handling TCP errors has been fixed.1015 - The posix unit will no longer hang upon any error in Windows.1016 - resize-vector no longer crashes when reducing the size of the vector.1017 - Distinct types for boolean true and false have been added to the1018 scrutinizer.1019 - Fixed bugs in string-trim-right, string-index-right and1020 string-skip-right, from SRFI-131021 - read-line no longer returns trailing CRs in rare cases on TCP ports (#568)1022 - write and pp now correctly use escape sequences for control characters1023 (thanks to Florian Zumbiehl)1024 - posix: memory-mapped file support for Windows (thanks to "rivo")1025 - posix: find-file's test argument now also accepts SRE forms.1026 - numerator and denominator now accept inexact numbers, as per R5RS1027 (reported by John Cowan).1028 - Implicit $VAR- and ~-expansion in pathnames have been deprecated (#1001)1029 - Fixed EINTR handling in process-wait and when reading from file ports.1030 - Irregex is updated to 0.9.2, which includes bugfixes and faster submatches.1031 - Compile-time expansions for "[sf]printf" are slightly more efficient.1032 - Removed the deprecated "always?", "never?", "shuffle" and "none?" procedures.1033 - Fixed problem "make-pathname" that returned an absolute path if given1034 a relative one without a directory argument.1035 - The implementation of promises has been made more efficient.1036 - Removed the deprecated "c-runtime", "null-pointer?" and "pointer-offset"1037 procedures.1038 - The deprecated alias "mutate-procedure" for "mutate-procedure!" has1039 been removed.1040 - On 64-bit systems the feature identifier "64bit" is registered.1041 - "process-fork" accepts an optional argument that specifies1042 wether other threads should be terminated in the child process.1043 - The "signal/bus" signal identifier was missing.1044 - Added setter-procedure for "signal-mask".1045 - Added "recursive-hash-max-length" and "recursive-hash-max-depth"1046 parameters (srfi-69).10471048- Platform support1049 - CHICKEN can now be built on AIX (contributed by Erik Falor)1050 - CHICKEN can now be built on GNU Hurd (contributed by Christian Kellermann)1051 - Basic support has been added for building Android and iOS binaries (see1052 the "README" file for caveats and pitfalls) (contributed by Felix Winkelmann1053 from bevuta IT GmbH)1054 - Added support for 64-bit Windows (consult the "README" file for more1055 information).10561057- Runtime system1058 - finalizers on constants are ignored in compiled code because compiled1059 constants are never GCed (before, the finalizer would be incorrectly1060 invoked after the first GC). (Reported by "Pluijzer")1061 - The call trace buffer is now also resizable at runtime via ##sys#resize-trace-buffer.1062 - C_zap_strings and ##sys#zap-strings (undocumented) have been deprecated.1063 - Special events in poll() are now handled, avoiding hangs in threaded apps.1064 - When invoking procedures with many rest arguments directly (not via APPLY),1065 raise an error when argument count limit was reached instead of crashing.1066 - When the maximum allowed heap size is reached, panic instead of crashing.1067 - The code generated for mutating data destructively is partially inlined1068 and thus slightly more efficient.1069 - Fixed incorrect code in the foreign argument conversion for1070 "unsigned-integer64" (#955). For unsigned-integer, integer64 and1071 unsigned-integer64, disallow floating-point numbers. Fix behavior1072 on 32-bit systems.1073 - On systems that provide sigprocmask(2), segmentation violations, illegal1074 instruction signals, bus errors and floating-point exceptions are now caught1075 and trigger normal error-processing (including a backtrace). The handling1076 of these so called "serious" signals can be disabled by passing the1077 "-:S" runtime option to executables.1078 - Reclamation of unused interned symbols (enabled with the "-:w" runtime option)1079 works much better now.10801081- Build system1082 - The tests can now be run without having to first install CHICKEN.1083 - Fixed a dependency problem that made it impossible to build the distribution1084 tarball on Windows with the mingw compiler.1085 - Increased the "binary compatibility version" to 7.10861087- Tools1088 - "csc"1089 - "-z origin" is now passed as a linker option on FreeBSD when1090 compiling for deployment (thanks to Jules Altfas & Vitaly Magerya)1091 - "-deploy" works now on FreeBSD (thanks to Jules Altfas and1092 Vitaly Magerya), OpenBSD and NetBSD (see README for NetBSD).1093 - added "-oi"/"-ot" options as alternatives to "-emit-inline-file"1094 and "-emit-type-file", respectively; "-n" has been deprecated.1095 - .c/.o files are no longer overwritten when they have the same basename1096 as a Scheme source file (i.e. "csc foo.scm foo.c -o foo" works now).1097 - "chicken-install"1098 - "-deploy" now correctly installs dependencies of1099 deployed eggs under the deployment directory instead of globally.1100 - Full URI syntax is now supported for proxy environment variables1101 (thanks to Michele La Monaca)1102 - "chicken-status"1103 - Added -eggs command line option to list installed eggs1104 - misc1105 - Removed the deprecated "-v" options (use "-version" instead) in various1106 core programs.1107 - The runtime linker path for compiled executables was not set correctly1108 on FreeBSD systems. This has now been fixed.1109 - Removed the deprecated "make" and "make/proc" facility from the1110 "setup-api" module; also removed the deprecated "required-extension-version"1111 and "required-chicken-version" procedures.11121113- Syntax1114 - Added the aliases "&optional" and "&rest" as alternatives to "#!optional"1115 and "#!rest" in type-declarations (suggested by Joerg Wittenberger).1116 - Vectors, SRFI-4 number vectors and blobs are now self-evaluating for1117 R7RS compatibility. Being literal constants, they are implicitly quoted.1118 - For R7RS compatibility, named character literals #\escape and #\null are1119 supported as aliases for #\esc and #\nul. WRITE will output R7RS names.1120 - The CASE form accepts => proc syntax, like COND (as specified by R7RS).1121 - letrec* was added for R7RS compatibility. Plain letrec no longer behaves1122 like letrec*.11231124- Compiler1125 - the "inline" declaration does not force inlining anymore as recursive1126 inlining could lead to non-termination of the compiler (thanks to1127 Andrei Barbu).1128 - Type-analysis ("scrutiny") is enabled by default now, unless1129 "-optimize-level 0" or "-no-usual-integrations" is given.1130 - The "-scrutinize" compiler option has been deprecated.1131 - A new lightweight flow-analysis pass ("lfa2") has been added.1132 Enable by passing the "-lfa2" option to the compiler.1133 - The deprecated options "-disable-warning", "-heap-growth", "-heap-shrinkage"1134 and "-heap-initial-size" have been removed.1135 - Removed the deprecated "constant" declaration.1136 - Removed the deprecated "-lambda-lift" and "-unboxing" compiler options.1137 - Removed the deprecated "-V" compiler option.1138 - Generated names for formal parameters of foreign functions are slightly1139 more informative.1140 - Unused references to variables that name intrinsics can be removed.1141 - In the flow-analysis pass, matching of combinations of "list"/"list-of" and1142 "or" types with has been made more reliable.1143 - Fixed various bugs in the type database.11441145- Syntax expander1146 - added "require-extension-for-syntax" and "use-for-syntax".1147 - Extended syntactic definitions are now available by default in all1148 evaluated code, particularly in code evaluated at runtime in compiled1149 applications.1150 - Removed the deprecated variant "(define-compiler-syntax (NAME . LLIST) BODY ...)"1151 of "define-compiler-syntax".11521153- C API1154 - Deprecated C_get_argument[_2] and C_get_environment_variable[_2] functions.1155 - Removed the deprecated "__byte_vector" type.1156115711584.8.011591160- Security fixes1161 - CVE-2012-6125: Improved hash table collision resistance and added1162 randomization to prevent malicious external causes of collisions.1163 All SRFI-69 procedures accept extra arguments to control randomization1164 for testing/debugging.1165 - CVE-2012-6124: On 64-bit machines the "random" procedure no longer1166 truncates result values (which caused very nonrandom results for very1167 large values). Note that random shouldn't be used for1168 security-critical code.1169 - CVE-2012-6123: Added checks for embedded '\0' characters in strings1170 passed to some C functions on a lower level than CHICKEN's FFI.11711172- Build system1173 - version information has been moved into a separate unit to make the1174 build-version shown in the banner and accessible through library1175 procedures more accurate, this also speeds up the build on version-1176 changes (thanks to Jim Ursetto for contributing this)1177 - the build was made more reliable with respect to cross-compilation1178 and custom installation names1179 - the test-suite is now working on the mingw32 platform (with1180 a few tests disabled due to missing functionality)1181 - the version and branch of the sources are now properly compiled1182 into the core libraries and shown in the "csi" and "chicken"1183 version headers1184 - The default target library name for an installation configured for cross-1185 compilation is now "libchicken" and independent on any particular1186 setting of PROGRAM_PREFIX/PROGRAM_SUFFIX (thanks to Otavio Salvador)11871188- Compiler1189 - Fixed bug in handling of symbols in constant-definitions (thanks to Peter1190 Bex)1191 - Stricter check for value-part of constant definition (thanks to Kon Lovett)1192 - Fixed bug that caused argument-signatures of external definitions to be1193 incorrectly modified during optimization (thanks to Peter Bex)1194 - Failing constant-folding expressions now produce a compile-time warning1195 - Fixed various bugs in the internal type-database (thanks to Kon Lovett and1196 Peter Bex)1197 - Fixed incorrect optimization rules for some fp-rounding and fixnum operators1198 - added "-specialize" option and "specialize" declaration which enables1199 optimizations of uses of core library procedures based on type-1200 information gathered during flow analysis1201 - "-optimize-level 3" and higher now implies "-specialize"1202 - added option "-strict-types" and "-emit-type-file"1203 - progress-information is now only shown with "-debug p"; the "-verbose"1204 option only shows informational but noncritical messages1205 - added optimizations for some library procedures1206 - variable propagation for global variable accesses is now done in certain1207 situations1208 - the algorithmic complexity of the closure-conversion pass has been1209 reduced which speeds up compilation noticably for large files1210 - the "-uses" option handles whitespace in unit lists given on the1211 command line (thanks to Santosh Rajan)1212 - the alternative branch in a conditional is dropped when the condition1213 is known to be a non-boolean value (suggested by Joerg Wittenberger)1214 - implemented numerous fixes and improvements for flow analysis1215 - fixed a bug in the compiler that could cause some variable bindings1216 to be optimized away in certain situations involving inlining1217 - added an experimental optimization called "clustering" (enable1218 with the compiler option of the same name)1219 - the optimizations done by the compiler are now listed as a comment1220 in the generated C file1221 - the type-information obtained during flow-analysis ("scrutiny") is1222 now used for performing type-sensitive optimizations of calls to1223 most of the core-library procedures1224 - deprecated the "constant" declaration specifier1225 - "unboxing" optimization has been completely removed - the implementation1226 was unreliable and unmaintainable; the "-unboxing" compiler option will1227 still be accepted but will produce a warning1228 - Peter Bex contributed an optimization to the analysis pass that1229 greatly reduces compile time for source code containing deeply nested1230 lexical bindings1231 - procedures that are known to have the value of a core library procedure1232 that is a "standard" or "extended binding" will be inlined1233 - enhanced line number tracking to get better error messages from1234 the scrutinizer.1235 - hygiene bugs related to compiler-syntax were fixed.1236 - the local flow-analysis was sometimes reporting multiple warnings1237 for the same type-conflict.1238 - the time/space-complexity of some algorithms used in the compiler1239 were reduced resulting in much better compile-times especially1240 for large source files.12411242- Interpreter1243 - ",q" leaves the currently active REPL invocation instead of1244 terminating the process (as suggested by John Cowan)1245 - ",m" properly switches between modules (thanks to Christian Kellermann)12461247- Core libraries1248 - Cleaned up the set of available internal SRFI-feature-identifiers1249 - Fixed bugs in "make-pathname" and "normalize-pathname" (thanks to Jim Ursetto)1250 - The reader is now more consistent when parsing symbol- and keyword names1251 that are fully or partially escaped (thanks to Kon Lovett)1252 - The printer now does a better job at escaping certain single-character1253 symbol names1254 - Unit "lolevel"1255 - deprecated "null-pointer" and "null-pointer?"1256 - Fixed a bug in the Windows implementation of "file-type" (thanks to1257 Jim Ursetto)1258 - Fixed a bug in the implementation of "current-milliseconds" that could1259 result in integer-overflow1260 - Fixed an incorrect type-check in "list-ref" (thanks to Sven Hartrumpf)1261 - Disabled "-setup-mode" when compiling extensions for deployment (thanks1262 to Ivan Raikov)1263 - Got rid of some warnings in the C runtime system that were triggered on1264 the SunPro C compiler (thanks to Joe Python)1265 - Fixed bug in "string->number" that caused out-of-range characters to1266 be accepted for base > 10 (thanks to Jim Ursetto)1267 - added "foldl" and "foldr" procedures, which are more efficient and1268 have a more consistent argument order than the corresponding1269 SRFI-1 procedures1270 - "shuffle" has been deprecated1271 - added "queue-length"1272 - "queue->list" allocates and returns a fresh list now1273 - invoking a parameter-procedure with an argument will return the new1274 value1275 - added new procedure "quit"1276 - port-procedures now check correctly for argument-ports being open1277 (thanks to Peter Bex)1278 - "repl" accepts an optional evaluator procedure (suggested by John1279 Cowan)1280 - added a setter procedure to "signal-handler" ("posix" unit)1281 - EINTR is properly handled for input routines that may block1282 waiting for input1283 - the implementation of R5RS evaluation environments is now fully1284 standards compliant1285 - "file-exists?" and "directory-exists?" work now properly for files1286 > 2GB (EOVERFLOW handling in stat(3) system call)1287 - fixed bug in implementation of "fifo?"1288 - the procedure returned by "condition-predicate" accepts any type1289 of argument now1290 - blobs have a readable textual representation ("#{...}")1291 - "find-files" does not follow symlinks by default (as it did previously)1292 - also, the old non-keyword argument signature for "find-files" is not1293 supported anymore1294 - added "alist-update" ("data-structures" unit)1295 - "irregex-replace" returns the original string instead of #f when the1296 regex does not match1297 - irregex "real" built-in utility pattern now accepts a leading sign1298 - added "change-directory*" ("posix" unit)1299 - number parsing has been made more reliable and standards compliant1300 - deprecated "none?", "always?" and "never?"1301 - library procedures that take ports as arguments now all perform checks1302 on port-direction and open/closed state1303 - "mutate-procedure" has been renamed to "mutate-procedure!" - the old1304 name is still available but deprecated1305 - deprecated C_hash_string and C_hash_string_ci functions in the C API in1306 favor of the more secure versions C_u_i_string_hash, C_u_i_string_ci_hash1307 - a number of bugs in the irregex regular expression engine have been1308 fixed; it has been updated to upstream release 0.8.31309 - "with-input-from-file", "with-output-to-file", "with-input-from-pipe" and1310 "with-output-to-pipe" now properly restore the standard input/output1311 ports in case the body thunk escapes1312 - symbols with a single-char print-name where not always properly escaped1313 when printed readably1314 - the "make" facility of the "setup-api" module has been deprecated,1315 please use the "make" extension when your egg requires this during1316 setup.13171318- Core tools1319 - "csc"1320 - The environment-variables "CHICKEN_C_INCLUDE_PATH" and1321 "CHICKEN_C_LIBRARY_PATH" can now be used to add default include-1322 and link-directories to C-compiler invocations1323 - "-O5" passed expensive optimization flags to the C compiler which1324 could expose C-Compiler bugs, depending on the compiler version1325 (thanks to Sven Hartrumpf for pointing this out).1326 - "-rpath" is ignored on OS X (thanks to Kon Lovett).1327 - Fixed handling of "-output-file" (it was being ignored)1328 - "chicken-install"1329 - Added option "-override", which allows retrieving extension-1330 versions from a file - this may be useful to ensure specific1331 versions of a complete set of eggs are installed1332 - Added option "-keep-installed"/"-x" that only installs explicitly1333 named extensions given on the command line, if they are not1334 already installed1335 - Added option "-list" that lists all extensions available1336 - Added option "-csi" to specify what interpreter should be used1337 to execute the setup-script of an installed extension1338 - Added option "-scan" that scans a local directory for the highest1339 available extension versions available1340 - Added option "-reinstall" that reinstalls all currently installed1341 eggs, keeping their versions, if possible1342 - Fixed bug with "chicken-install -test" when multiple extensions where1343 given on the command line (thanks to Kon Lovett)1344 - installing subdirectories works now on Windows.1345 - fixed handling of "-force" when a "chicken" dependency version did1346 not match1347 - added new option "-show-foreign-depends" which lists foreign egg1348 dependencies (if available)1349 - added new option "-show-depends" which lists egg dependencies1350 - added support for "or"-dependencies where a dependency is considered1351 installed if one of a set of candidates is available1352 - "chicken-profile"1353 - fixed some bugs in the profiler and the runtime support code for1354 profiling (thanks to Sven Hartrumpf)1355 - fixed broken percentage calculation (thanks to "megane")1356 - "chicken-status"1357 - Added option "-list" that dumps versions of installed extensions1358 in a format suitable for "chicken-install -override ..."1359 - the "pattern" argument is now actually treated as a pattern and not1360 as a regex13611362- Core syntax1363 - "assert" shows the line number of the form when a second argument1364 is not given or is a literal string1365 - "parameterize" now correctly omits invoking the guard procedure when1366 the old value is restored (thanks to Joo ChurlSoo)1367 - added ":", "the" and "assume" syntax for declaring types1368 - added "define-specialization" form to declare type-driven procedure1369 call rewrites in compiled code13701371- Syntax expander1372 - Fixed a bug that caused imported identifiers to leak into the1373 macroexpansion/compile-time environment (reported by Christian Kellermann)1374 - Fixed a bug in the processing of extended lambda-lists (thanks to Peter Bex)1375 - Peter Bex fixed a bug that caused bound variables to be incorrectly1376 renamed in quoted literals (thanks to Matthew Flatt)1377 - fixed devious bug in the invocation and generation of transformer1378 procedures1379 - using normal "lambda" forms as transformers for local or global1380 syntax definitions is deprecated - one should use "syntax-rules",1381 "er-macro-transformer" or "ir-macro-transformer" from now on13821383- Runtime system1384 - fixed handling of "inf" and nan" floating-point predicates for Solaris1385 (thanks to Claude Marinier)1386 - support for re-loading of compiled files has now been completely1387 removed1388 - the maximum length of strings is no longer limited to a 24-bit1389 number on 64-bit architectures but can be 56 bits.1390 - string-comparison handles embedded '\0' characters.1391 - numerical predicates handle infinity and NaN correctly.1392 - deprecated "[+-]nan", "[+-]inf" and other notations "accidentally"1393 accepted by CHICKEN due to the underlying C library's strtod() function,1394 standardizing on "[+-]nan.0" and "[+-]inf.0" from R6RS (and soon R7RS),1395 when displaying numbers only these forms are generated now.1396 - signals are queued to some extent and the interrupt handling has1397 been cleaned up somewhat1398 - the interpreter handles SIGINT directly - loading the "posix" unit1399 is not needed anymore to handle this feature1400 - changed default nursery size slightly and fixed a bug that caused1401 incorrect (too small) nursery sizes on 64-bit platforms1402 - deprecated the compiler option "-heap-initial-size", "-heap-growth"1403 and "-heap-shrinkage"1404 - the assembly-language stub routine for the implementation of "apply"1405 was broken for Sparc64 systems and has been disabled for this platform1406 - signal masks were accidentally reset upon GC for some platforms; use1407 sigsetjmp/siglongjmp on BSD, Linux, MacOS X and Haiku14081409- Type system1410 - added new type-specifiers "input-port", "output-port", "(list-of T)"1411 and "(vector-of T)"1412 - the type-specifiers "(vector T ...)" and "(list T ...)" represent1413 fixed size lists and vectors now1414 - added qualified types ("forall"), optionally with type constrains1415 - added the "define-type" special form and type-abbreviations1416 - added "compiler-typecase", a compile-time typematching form14171418- Module system1419 - Added "interfaces", which are named groups of exports1420 - Added "functors", which are parameterized modules1421 - Modules can now be aliased1422 - New syntax:1423 (define-interface NAME EXPORTS)1424 (functor (NAME ...) EXPORTS ...)1425 - Extended syntax of "module" for aliasing and functor-instantiation1426 - the "scheme" module has been integrated into the core library and1427 is not installed as a separate import library anymore1428 - added core module "r4rs" containing only bindings for R4RS identifiers1429 - added core module alias "r5rs" for "scheme" module1430 - added "module-environment" which returns an evaluation environment1431 for the bindings of a module1432 - fixed bugs related to using "export"/"reexport" in combination with1433 wildcard ("*") module export lists (thanks to "megane")14341435- Foreign function interface1436 - locatives are allowed as arguments declared "c-pointer"1437 - "int32" was not properly detected as a valid foreign type (thanks1438 to Jim Ursetto)1439144014414.7.014421443- Build system1444 - On BSD, libchicken.so is linked with -lpthread, as this seems1445 to be required for linking libraries that require pthreads1446 - The C header-files are now installed in a subdirectory below1447 the "PRFIX/include" directory to allow installation of multiple1448 chickens with different PROGRAM_PREFIX/PROGRAM_SUFFIX settings1449 in the same prefix; to avoid conflicts with existing CHICKEN1450 headers, it is recommended to completely remove any old1451 installation before installing the new version1452 - the PROGRAM_PREFIX and PROGRAM_SUFFIX configuration settings1453 are applied to generated files and directories which allows1454 perform differently named installations into the same PREFIX1455 - increaded binary-compatibility version from 5 to 6, which1456 means installed extensions in an existing installations will1457 have to be re-installed1458 - bugfixes in mingw/msys makefiles1459 - Sven Hartrumpf contributed a bugfix to the internal helper1460 script for creating distribution directories1461 - Peter Bex has cleaned up the makefiles heavily, making the1462 build more maintainable and easier to modify; thanks to all1463 who helped testing this new build1464 - renamed the makefile to `GNUmakefile' to catch using the1465 a make(3) other than GNU make1466 - configuration-header fix for BSD systems (thanks to Peter Bex1467 and Christian Kellermann)146814691470- Core libraries1471 - the `regex' library unit has been removed and is separately1472 available as an extension which should be fully backwards-1473 compatible1474 - `irregex' is now a core library unit and replaces the `regex' API1475 - "extras" unit1476 - fixed pretty-printer output of certain escaped character1477 sequences inside strings (thanks to Mario Domenech Goulart,1478 thanks to Kon Lovett for pointing out a missing test-file)1479 - The pretty printer did not escape some control characters correctly1480 (reported by Alan Post)1481 - control-characters in symbol-names are now properly escaped if1482 the symbol is printed readably (thanks to Alaric Snell-Pym1483 for pointing this out)1484 - the deprecated `random-seed' function has been removed1485 - "files" unit1486 - fixed bug in `normalize-pathname'1487 - `file-copy' and `file-move' check whether the source-file is a1488 directory1489 - `delete-directory' now optionally deletes directories recursively1490 - "irregex" unit1491 - Peter Bex has contributed various bugfixes and performance1492 enhancements1493 - "library" unit1494 - Added "condition->list" (thanks to Christian Kellermann)1495 - The reader accepts now escaped octal character codes in string1496 literals1497 - Read-syntax can return zero values to indicate ignored objects1498 - R5RS output output routines now always return a "void" result1499 - "\|" was not correctly escaped when occurring inside1500 symbol print names1501 - added `condition->list', contributed by Christian Kellermann1502 - added `equal=?'1503 - removed deprecated `getenv', `left-section', `right-section',1504 `project', `c-runtime' and `noop'1505 - added missing import-library entry for `vector-copy!' (thanks1506 to Jules Altfas)1507 - circular or excessively deeply nested data generates a more1508 useful error message when encountered by `equal?'1509 - `list-tail' gives now a better error message when passed a1510 non-list argument1511 - fixed bug in `getter-with-setter' that modified the first1512 argument if it already had a setter procedure attached1513 - fixed incorrect size of internal data vector used in `time'1514 (thanks to Kon Lovett)1515 - "lolevel" unit1516 - removed deprecated `global-bound?', `global-make-unbound',1517 `global-ref' and `global-set!' procedures1518 - added support for `pointer-vectors':1519 - make-pointer-vector1520 - pointer-vector?1521 - pointer-vector-length1522 - pointer-vector-ref1523 - pointer-vector-set!1524 - "posix" unit1525 - "close-input-pipe" did not return the status code of a1526 terminated process on Windows (reported by Mario Domenech Goulart)1527 - added `file-creation-mode' (suggested by Mario Domenech Goulart)1528 - "setup-api" unit1529 - `required-extension-version' and `required-chicken-version' have1530 been deprecated1531 - "srfi-18" unit1532 - removed deprecated `milliseconds->time' and `time->milliseconds'1533 procedures1534 - `make-mutex' incorrectly created mutexes as initially owned by1535 the current threads (thanks to Joerg Wittenberger)1536 - the file-descriptor handling in the scheduler has been simplified1537 and performs some sanity checks1538 - deadlock in the scheduler now terminates the process instead of1539 attempting to throw an error1540 - added some sanity checks to the scheduler1541 - "tcp" unit1542 - Fixed bug in "tcp-abandon-port" (reported by Jim Ursetto)1543 - "utils" unit1544 - `compile-file' now returns `#f' when the compilation fails,1545 instead of raising an error154615471548- Compiler1549 - Removed unreliable lambda-lifting optimization (now, really!);1550 the "-lambda-lift" option is still accepted but produces a1551 warning1552 - When "-scrutinize" is given, installed ".types" files will be1553 automatically consulted for extensions and used units1554 - Fixed optimizer bug in handling of "let" forms with multiple1555 bindings which could result in toplevel assignments being1556 silently dropped (reported by Moritz Heidkamp)1557 - the `-accumulate-profile' option did not provide a way to1558 specify the target profile data file - now `-profile-name'1559 must always be given when accumulated profiling is done1560 (thanks to Taylor Venable)1561 - added `-module' option, which wraps the code into an implicit1562 module1563 - removed check for unsafe toplevel calls in safe mode1564 - intrinsic handling of `exact->inexact' and `string->number' is1565 now more efficient1566 - fixed bug in leaf-routine optimization (thanks to David1567 Dreisigmeyer)1568 - unit-toplevel entry-points are now named differently, which1569 may break binary-compatibility with existing compiled Scheme1570 code modules1571 - fixed invalid dropping of unused external entry-points in1572 block-mode1573 - fixed incorrect lambda-list check in scrutinizer (thanks to1574 Alan Post)1575 - Kon Lovett reported numerous bugs in the type-database used1576 by the scrutinizer1577 - `-fwrapv' is disabled on OpenBSD, since the default compiler1578 does not support this option (thanks to Christian Kellermann)1579 - on Solaris `gcc' is used by default, override `C_COMPILER'1580 to use the Sun compiler instead1581 - declaring a function `notinline' will prevent direct-call1582 optimization for known procedure calls1583 - the implementation of overflow-detection for arithmetic operations1584 on fixnums have been replaced and now allow using the full 63-bit1585 range of fixnums on 64-bit systems1586 - fixed serious inlining-bug (thanks to Sven Hartrumpf)1587 - constant-folding in the compiler has been simplified and1588 is more reliable (thanks to Sven Hartrumpf)1589 - optimization-levels 3 and higher imply `-unboxing -inline-global'1590 - added new declaration `unsafe-specialized-arithmetic' which allows1591 optimizing unboxed floating-point arithmetic in safe mode1592 - removed `scrutinize' declaration1593 - the warning shown when unimported identifiers are used in compiled1594 modules now also shows the name of the procedure where the1595 identifier is referenced (suggested by Alaric Snell-Pym)159615971598- Documentation1599 - Added list of installed files to README1600 - Documented remaining "c...r" standard procedures (thanks to1601 Juergen Lorenz)1602 - The manual is now installed in HTML format in1603 PREFIX/share/chicken/doc, many thanks to Jim Ursetto for1604 contributing is excellent `manual-labor' extension which made1605 this possible160616071608- Foreign function interface1609 - Added support for missing "(const [XXX-]c-string)" foreign type1610 (thanks to Moritz Heidkamp)1611 - removed deprecated `pointer', `nonnull-pointer', `byte-vector'1612 and `nonnull-byte-vector' types1613 - added missing result-type handling for `unsigned-integer64'1614 (thanks to Moritz Heidkamp)1615 - added `foreign-type-size' macro1616 - added the new foreign type `size_t' (suggested by Moritz1617 Heidkamp)1618 - added the missing `unsigned-integer64' foreign type (thanks1619 to Moritz for catching this)1620 - added new foreign type `pointer-vector' which maps to `void **'1621 and provided a low-level API in the `lolevel' library unit for1622 manipulating pointer vectors162316241625- Runtime system1626 - Fixed typo in "runtime.c" (thanks to Sven Hartrumpf)1627 - Little-endian detection on MIPS systems was not correct (thanks1628 to Christian Kellermann)1629 - Fixed bug in handling of runtime-options with arguments (also1630 reported by Christian Kellermann)1631 - `equal?' does not compare procedures recursively anymore1632 - fixed incorrect use of alloca.h on OpenBSD (thanks to1633 Christian Kellermann and Alan Post)1634 - checks for NaN and infinity are now done using ISO C991635 operations, which required various changes to `chicken.h'1636 to make the code compile in ISO C99 mode1637 - remaining debris regarding MSVC builds has been removed1638 - fixed bug in argument-type check for 64-bit integer (thanks1639 to Kon Lovett)1640 - increased default trace-buffer size from 10 to 161641 - fixed bug in low-level termination routine (thanks to1642 Jeronimo Pellegrini)1643 - the scheduler handles violations of internal invariants1644 regarding threads slightly more gracefully (thanks to Jim1645 Ursetto)1646 - fixed broken sleep-time conversion (thanks to Karel Miklav)1647 - repaired broken handling of multiple finalizers that referred1648 to the same object (reported by Moritz Heidkamp)1649 - fixed problem with reader and escaping of single-char symbols165016511652- Syntax expander1653 - For-syntax syntax definitions where not correctly retained inside1654 modules1655 - Peter Bex fixed various critical bugs in the expander1656 - The simplification for quasiquote expressions was unable1657 to handle certain circular data (reported by Moritz Heidkamp)1658 - `syntax-rules' now supports tail-patterns and is now fully1659 SRFI-46 compatible - many thanks to Peter Bex for implementing1660 this1661 - Peter Bex provided a bugfix for resolution of primitive imports1662 - handling of internal definitions with shadowed defining1663 forms is now done correctly - fix once again from Peter Bex1664 - corrected non-standard behaviour of quasiquote with respect1665 to nested quasiquotations - another bugfix by our mighty macro1666 master1667 - removed stub-implementation of `define-macro'1668 - handled case where a global redefinition of `cons' influenced1669 a non-inlined internal use in the expander (thanks to David1670 Steiner)1671 - `define-record' now allows defining SRFI-17 setter procedures1672 for accessing slots1673 - the expansion of DSSSL lambda-lists uses now `let-optionals*'1674 internally instead of `let-optionals' and so allows1675 back-references to earlier formal variables; this also results in1676 faster and more compact code for argument-list destructuring1677 (thanks to Alan Post)1678 - new "implicit renaming" macro facility contributed by Peter Bex1679 (see `ir-macro-transformer')1680 - parameters are now settable and can be modified using `set!'1681 (SRFI-17)1682 - added a SRFI-17 setter to `list-ref'1683 - added literal blob syntax ("#{ ... }")168416851686- Tools1687 - chicken-install1688 - option "-deploy" does not compile deployed extensions with1689 "-setup-mode" anymore to avoid problems with dynamic loading on1690 some platforms (specifically Mac OS X)1691 - option "-deploy" option did not copy the correct library1692 (including the version-number) (thanks to Christian Kellermann)1693 - added support for proxy-authentification (thanks to Iruata Souza)1694 - when installing from a local directory `chicken-install' now1695 removes existing `*.so' files in that location to avoid stale1696 binaries when the `make' syntax is used in setup scripts1697 - chicken-bug1698 - removed disabled e-mail support1699 - csc1700 - removed `-static-extension' option1701 - removed deprecated `-windows' option1702 - fixed incorrect use of `chicken.rc' on non-Windows platforms1703 in `-gui' mode (thanks to "ddp")1704 - when compiling in C++ mode, the compiler will be called with the1705 `-Wno-write-strings' option1706 - `-frwapv' has been added to the default C compiler options1707 - csi1708 - the ",m" toplevel command now accepts "#f" to switch back to1709 the initial empty module context (suggested by Christian Kellermann)1710 - fixed broken `,g' toplevel command1711 - deprecated `script' feature identifier (use `chicken-script'1712 instead)1713 - options `-p' and `-P' and `-e' imply `-no-init'1714 - the call-trace reported will not include exception-handler code1715 anymore (suggested by Christian Kellermann)17161717171817194.6.017201721- the licenses used in all components of the core system have1722 been collected in the LICENSE file (Thanks to Peter Bex)1723- Added new compiler option `-no-module-registration' which1724 omits generation of module registration code, even when1725 generation of import libraries has not been enabled1726- running `chicken' without arguments now hints at the1727 existence of `csi' and `csc'1728- `caar', `cdar' and `cddr' generate faster code1729- calls to `list', `vector' and the internal structure1730 allocation primitive that take 1 to 8 arguments generate1731 faster code1732- `chicken-install' now checks the version of the setup1733 configuration file `setup.defaults'1734- added option `-exact' to `chicken-status' and `chicken-uninstall',1735 which treats the pattern argument as the literal name of the1736 extension to be listed/deinstalled1737- `assert' shows line-number information, if available1738 (suggested by Alejandro Forero Cuervo)1739- interpreted code records the lexical-environment at call-1740 sites, which can in case of an error be inspected with the1741 new `,c', `,f' and `,g' csi toplevel commands1742- the evaluation-result history in `csi' can be inspected and1743 cleared (to reduce memory load) with the toplevel commands1744 `,h' and `,ch'1745- unit `data-structures': deprecated `left-section' and1746 `right-section'1747- fixed bug that caused the static syntax-environment of1748 syntax exported by a module to be incomplete1749- module `setup-api': Documented the `version>=?' and1750 `extension-name-and-version' proceedures1751- unit `posix': `utc-time->seconds' is considerably1752 faster on Mac OS X (thanks to Jim Ursetto);1753 added new procedure `file-type'1754- the `time' macro now shows the correct number of minor1755 garbage collections1756- the immediate-object check inside the marking procedure1757 of the garbage collector has been manually inlined which1758 results in a significant GC speedup, depending on memory1759 load1760- unit `srfi-18' and `scheduler': various bugfixes (thanks1761 to Joerg Wittenberger)1762- unit `srfi-4': bugfix in 8-bit vector allocation routines1763 (thanks to Kon Lovett)1764- added `-:H' runtime option to dump heap state on exit1765- fixed missing change in Makefile.cygwin (thanks to John Cowan)1766- fixed bug in `let-optionals' macro that caused problems when the1767 rest-variable was actually named `rest' (thanks to Alejandro1768 Forero Cuervo)1769- when Scheme files are translated to C++ or Objective-C, `csc'1770 will register the feature-identifiers `chicken-scheme-to-c++'/1771 `chicken-scheme-to-objc' ar compile-time1772- fixed bug in expansion of `#!key' parameters in lambda-lists1773- debug-output for forcing finalizers on exit goes to stderr now1774 (thanks to Joerg Wittenberger)1775- the installation routines for extensions automatically add1776 version-number information if none is given in the extension1777 property list (suggested by Alejandro Forero Cuervo)1778- `standard-extension' accepts `#f' now for the version number1779 and will use the version that has been obtained via1780 `chicken-install'1781- `fifo?', `symbolic-link?', `directory?', `regular-file?', `socket?',1782 `character-device?' and `block-device?' now accepts file-descriptors1783 or filenames1784- `find-files' takes keyword arguments, now (including the options1785 to process dotfiles and ignore symbolic links); the old argument1786 signature is still supported but deprecated1787- removed dependency on `symbol-append' in some macros used in1788 srfi-4.scm to be able to compile the system with older chickens1789- fixed bug in script that generates development snapshot1790- added build-variable `TARGET_FEATURES', which can be used to pass1791 extra options enabling or disabling fetures for a system configured1792 for cross-compilation1793- added compiler and interpreter option `-no-feature FEATURENAME' that1794 disables predefined feature identifiers1795- code compiled with interrupts disabled will not emit inline files1796 for global inlining since they may execute in a context where1797 interrupts are enabled1798- the `setup.defaults' file that holds download sources for1799 `chicken-install' now allows aliases for locations1800- CHICKEN systems build from cross-compilation now by default1801 transparently build and install extensions for both the host1802 and target parts of the cross-compilation setup; the options1803 `-host' and `-target' can now be used to selectively build1804 an extensions for the host- and the target system, respectively1805- also added `-host' and `-target' options to `chicken-status' and1806 `chicken-uninstall'1807- `chicken-install' now respects the `http_proxy' environment variable1808 (contributed by Stephen Eilert)1809- the `srfi-4' library unit has been heavily cleaned up and optimized1810- optimization-level 3 now enables global inlining1811- fixed the case that declarations listing global identifiers did not1812 correctly rename them1813- deprecated `-N' option shortcut for `-no-usual-integrations' option in1814 `csc'1815- `csi' now offers a toplevel command `,e' for invoking an external1816 editor (suggested by Oivind Binde)1817- the `describe' command in `csi' now detects many circular lists1818 (contributed by Christian Kellermann)1819- `csi' doesn't depend on the `srfi-69' library unit anymore1820- when a closing sequence delimiter is missing or incorrect, the1821 reader also reports the starting line of the sequence1822- the reader signals an error when a file contains certain characters1823 that indicate that it is a binary file1824- procedure-information shown by the printer for procedures is now1825 corrected for some library procedures that where missing the correct1826 information; `getter-with-setter' copies procedure-information objects1827 into the newly created accessor procedure, if available1828- calls to some known pure standard- or extended procedures are removed, if1829 the procedures are called with side-effect free arguments and the1830 result is not used (this can also by enabled for user procedures with1831 the `constant' declaration)1832- fixed some build-system bugs related to installation1833- fixed a problem in the C runtime code that prevented it to be compileable1834 without a configuration header-file1835- the makefile-target to build a bootstrapping `chicken' executable1836 performs multi-stage build now1837- changed error message when required extension is out of date (thanks to1838 Mario Goulart)1839- documented library units loaded by default in `csi' (thanks to Moritz1840 Heidkamp)1841- added `boot-chicken' makefile target to simplify bootstrapping1842 the system from sources and documented this in the README1843 (suggested by Jim Ursetto)1844- CHICKEN can now be built on haiku (contributed by Chris Roberts)1845- on Solaris, the system can be compiled with the SunPro C compiler1846 (thanks to Semih Cemiloglu)1847- removed the `-disable-warnings' compiler option and `disable-warnings'1848 declaration specifier1849- `fx/' and `fxmod' generate now faster code in safe mode1850- cleaned up manual pages1851- slightly optimized variable- and procedure-access1852- in the compiler `-debug-level 2' implies `-scrutinize'1853- internal compiler-transformation for `for-each' and `map'1854 apply now with any expression as the procedure argument1855- the compiler warns about non-intrinsic exported toplevel variables1856 which are declared to be safe1857- `csc' didn't handle the `-verbose' option (thanks to Mario Goulart)1858- the `,d' command in `csi' now detects circular lists (thanks to1859 Christian Kellermann)1860- strings passed to C runtime functions and which are converted to1861 0-terminated C strings are now checked for not containing embedded1862 `\0' characters (thanks to Peter Bex)1863- errors in user-defined record printers are caught and shown in the1864 output instead of throwing an error to avoid endless recursion when1865 an error message is printed1866- a feature identifier named `chicken-MAJOR.MINOR' is now defined1867 to simplify conditionalization of code on the CHICKEN version1868- `getter-with-setter' copies the lambda-information (if available) from1869 the getter to the generated procedure1870- `time' uses a somewhat more concise output format and outputs timing1871 information to stderr instead of stdout1872- added a new chapter on cross-development to the manual1873- added the `safe-globals' declaration specifier1874- split up manual chapter `Modules and macros' into two chapters1875 (named `Modules' and `Macros', respectively - suggested by1876 Mario Goulart)1877- the last 5 non-precompiled regular expressions are now internally1878 cached in compiled form, which speeds up repeated matching of1879 the same uncompiled regular expression dramatically1880- added the new procedure `yes-or-no?' to the `utils' library unit1881- added a `bench' makefile target that runs some non-trivial1882 benchmark programs1883- added `install-target' and `install-dev' makefile target for1884 installing only target system libraries in cross-mode and1885 development files (static libraries and headers)1886- added `[-]no-procedure-checks-for-toplevel-bindings' compiler1887 option and declaration1888- usage of unimported syntax in modules gives more usable1889 error messages; in particular, used but unimported FFI forms are1890 now detected1891- invalid syntactic forms (mostly `()') encountered by the compiler1892 or interpreter show the contextual form containing the expression,1893 or, if indicated by the context warns about missing imports1894- simplified manual pages of all core tools - they now refer to1895 the output shown by invoking `<tool> -help'1896- added new option `-feature FEATURE' to `chicken-install' tool1897 to pass feature-identifiers to invocations of `csc'1898- removed deprecated `-host-extension' option from `chicken-install'1899- `chicken-status' in a system built for cross-compilation now1900 lists extensions installed in the target prefix, unless the1901 new `-host' option is given on the command line1902- `chicken-uninstall' in a system built for cross-compilation now1903 removes extensions installed in the target prefix, unless the1904 new `-host' option is given on the command line1905- added missing entry for `finite?' to the `chicken' module1906 exports1907- added new procedure `port-closed?' to the `library' unit1908 (contributed by Peter Bex)1909- added new procedure `symbol-append' to the library unit1910- the compiler-option `-optimize-level 0' is equivalent to1911 `-no-compiler-syntax -no-usual-integrations`1912- internal rewritings of `map' and `for-each' ensure correct1913 evaluation order of the arguments and does a better job1914 at detecting non-list arguments (thanks to Jim Ursetto)1915- `void' now takes arbitrary arguments and ignores them1916- deprecated `noop' (from the `data-structures' unit) which1917 is now replaced by `void'1918- the `time' macro now performs a major garbage collection1919 before executing the contained expressions and writes1920 the timings in a more compact format to the port given1921 by `(current-error-port)' instead of the standard output1922 port1923- definitions of the form `(define define ...)' and1924 `(define-syntax define-syntax ...)' now trigger an error,1925 as required by R5RS (thanks to Jeronimo Pellegrini and Alex1926 Shinn)1927- deprecated `random-seed' from the `extras' unit, since it1928 is identical to `randomize'1929- added new procedure `create-temporary-directory' to the1930 `files' unit1931- deprecated the optional path separator argument to1932 `make-pathname'1933- slightly improved the performance of keyword argument1934 processing1935- removed the deprecated `canonical-path' and `current-environment'1936 procedures from the `posix' unit1937- warnings that mostly refer to programming style issues are1938 now coined `notes' and are only shown in the interpreter1939 or when debug-mode is enabled or when scrutiny is enabled1940 when compiling194119424.5.019431944- internal fixes of handling of alternative installation-prefix1945 in setup-api1946- certain compiler-warnings that are in really just notes1947 and don't indicate a possible error (like reimport of1948 identifiers) are only shown with -S or in verbose mode1949- fixed handling of VARDIR in `chicken-install' (thanks to1950 Davide Puricelli)1951- `chicken-install -test' doesn't runs tests for dependencies1952- when a non-else clause follows an else-clause in `cond',1953 `case' or `select' a warning (note) is shown in verbose1954 mode1955- removed the deprecated `define-extension' and1956 `define-compiled-syntax'1957- `chicken-uninstall' now always asks before removing1958 extensions, unless `-force' is given1959- improved performance of keyword-argument processing slightly1960- `export' outside of a module definition has no effect1961- `number->string' now accepts arbitrary bases between 2 and 161962 (thanks to Christian Kellermann)1963- fixed `standard-extension' in `setup-api' module1964- literal constants keep their identity, even when inlined1965- Unit library: added `fxodd?' and `fxeven?'1966- All hardcoded special forms have been replaced with1967 syntax definitions that expand into internal forms, this1968 allows redefinition and shadowing of all Scheme core forms1969- faster implementations of `get' and `put!'1970- faster implementation of `assq' in unsafe mode1971- the `-sx' option prefixes each output line with `;'1972- slightly better expansion performance1973- more documentation of the C API (thanks to Peter Bex)1974- `module' supports a shorthand form that refers directly1975 to a file to be included as the module body1976- added runtime option `-:G' to force GUI mode (on platforms1977 that distinguish between GUI and non-GUI applications)1978- removed the unsafe runtime library (`libuchicken'), this1979 simplifies and speeds up the build and reduces the risk1980 of executables loading library units from different1981 variants of the runtime system1982- removed the `-unsafe-libraries' option from `chicken'1983 and `csc'1984- removed bootstrapping target and bootstrapping files from1985 development repository; to bootstrap the system, either1986 use a release or development-snapshot tarball or fetch1987 a statically linked precompiled `chicken' binary from1988 http://chicken.wiki.br/chicken-projects/bootstrap/1989- Jim Ursetto provided some fixes for building universal1990 binaries on Mac OS X1991- `csc' now compiles and links Windows resource (.rc) files1992 when given on the command line1993- `chicken-install' and `chicken-uninstall' have an embedded1994 manifest that suppresses the elevation dialog on Windows1995 Vista and later when UAC is activated (Thanks to Thomas Chust)1996- the `install' program is not used in the build on mingw1997 and mingw/MSYS platforms, since this is broken on older1998 mingw versions1999- line-number-information is now properly handled (in the2000 few places where it is used) correctly for included files;2001 the source file is given in trace-output in addition to2002 the line number2003- removed compiler warning for shared objects compiled in2004 unsafe mode2005- unboxing is now only done in unsafe mode2006- in unsafe mode, pointer-accessors from the `lolevel' unit2007 are now handled intrinsically by the compiler2008- `chicken-install' accepts now relative pathnames for the2009 `-prefix' option2010- `define-record-type' now optionally allows using SRFI-172011 setters as record-field modifiers2012- `integer?' returns `#f' for NaN and infinite numbers2013- `csc' now has an `-no-elevation' option for embedding a2014 manifest that prevents the elevation dialog on Windows2015 Vista and later when IAC is activated2016- the `,d' csi command displays qualified symbols properly2017- symbols starting with the `#\#' character trigger an2018 error when encountered by the reader2019- Unit posix: `glob->regexp' now always returns a regular2020 expression object or optionally an SRE2021- Unit posix: `terminal-port?' and `terminal-size' have been2022 implemented for Windows, the latter always returns `0 0',2023 though (thanks to Jim Ursetto)2024- Unit regex: `regexp' now accepts a regular expression2025 object as argument2026- Unit regex: removed `glob?'2027- fixed bug in `chicken-install'/`chicken-uninstall' and2028 `chicken-status' that prevented collapsed command-line2029 options to be handled correctly.2030- disabled runpath-fix for deployed applications for netbsd2031 (but resurrected providing a runpath at all, thanks to2032 Peter Bex)2033- Peter Bex provided documentation for the `C_closure' C API2034 function203520364.4.020372038- the system can now be built with llvm-gcc and/or "clang" (the2039 LLVM C compiler which doesn't use the GNU C frontend)2040- added new option `-trunk' to `chicken-install', which forces2041 building and installing the development version of extensions2042 in combination with `-t local'2043- added new option `-deploy' to `chicken-install', which builds2044 extension for use in "deployed" applications (see below)2045- added option `-deploy' to `csc', the compiler driver. With this2046 option `csc' can build fully self-contained application bundles2047 and double-clickable Macintosh GUI apps; see the "Deployment"2048 manual chapter for more information2049- the directory given to the `-prefix' option of `chicken-install'2050 may now be a relative pathname.2051- removed GUI-specific runtime library (`libchicken-gui') from2052 Windows build - GUI- and non-GUI applications now use the same2053 runtime library2054- special forms of the foreign-function interface have been replaced2055 with an internal form and syntax to allow renaming and shadowing of2056 these forms2057- the new `-private-repository' option in `csc' compiles executables2058 with the extension-repository path set to the directory from which2059 the program was started2060- `csc': deprecated the `-W' and `-windows' options, added `-gui' as2061 a platform-independent replacement2062- `require-extension'/`use' accepts now import-specifications2063- user-defined extension-specifiers and `set-extension-specifier!'2064 have been removed2065- `delete-file[*]', `rename-file', `create-directory', `file-copy',2066 `file-move', `delete-directory' and `change-directory' return their2067 argument/destination filename on success2068- added the missing procedure `condition-variable-name' to the2069 srfi-18 library unit (Thanks to Joerg Wittenberger)2070- the `glob?' function from the `regex' unit has been deprecated2071- added the procedure `scan-input-lines' to the `utils' library unit2072- added new runtime option `-:g' which enables GC debugging output2073- reclamation of unused symbols in "symbol-gc" mode (`-:w') now only2074 takes place for symbols with an empty property-list2075- on Windows loading of code compiled with [non-]GUI runtime libraries2076 will fail and produce an error message when the loading executable2077 is linked with a different runtime system2078- on Windows, GUI libraries were not correctly linked by `csc'2079- unit posix: added setter for `file-modification-time'2080- the banner shows the branchname of the build, unless it's "master"2081- the `-no-install' option to `chicken-install' is ignored when2082 building/installing dependencies2083- `chicken-uninstall' takes a glob instead of a regular expression as2084 argument2085- the rename and compare functions for low-level macro-definitions2086 accept now arbitrary s-expressions and renames/compares them recursively2087- `number->string' handles negative-numbers with bases different from 102088 correctly (thanks to Peter Danenberg)2089- removed deprecated `setup-install-flag' and `setup-verbose-flag' from2090 the `setup-api' module2091- added new option `-repository' to `chicken-install' (Thanks to Christian2092 Kellermann)2093- removed `chicken-setup' stub program2094- fix to `csc' to use the correct library when fixing dynamic load paths2095 (Thanks to Derrell Piper)2096- removed html documentation from distribution (the wiki manual will2097 now be installed)2098- fixed bug in `reexport' which caused syntax not to be correctly2099 reexported2100- previous assignments to a toplevel variable that are separated by2101 side effect free expressions are removed2102- fixed windows version of `find-files' (thanks to Jim Ursetto)2103- documentation for extensions is not installed automatically by2104 `chicken-install' anymore2105- changed binary version from "4" to "5", because the new runtime2106 libraries are not binary-compatible with previous releases; this2107 means all eggs have to be reinstalled and existing programs be2108 recompiled!2109- added unboxing pass to compiler which results in partially dramatical2110 performance improvements for unsafe floating-point-intensive code;2111 unboxing is enabled on optimization levels 4 and 52112- removed rest-argument-vector optimization as it could conflict2113 with inlining (thanks to Sven Hartrumpf)2114- renamed `pointer-offset' to `pointer+' and deprecated `pointer-offset'2115- toplevel assignments that have no other side-effects can be eliminated2116 if it can be shown that the value is not used (the compiler will2117 generate a warning in this case)2118- removed deprecated `-quiet' option in `chicken' program2119- removed deprecated `run-time-macros' declaration2120- removed deprecated `-v2' and `-v3' options in `csc' program2121- removed deprecated `list-of' function (it is exclusively available2122 as `list-of?' now)2123- removed deprecated `stat-...' functions in posix library unit2124- removed deprecated `for-each-line' and `for-each-argv-line' procedures2125 in utils library unit2126- added `fpinteger?' and `fpabs'2127- deprecated `define-compiled-syntax'2128- added new floating-point primitives `fpsin', `fpcos', `fptan',2129 `fpasin', `fpacos', `fpatan', `fpatan2', `fpexp', `fplog',2130 `fpexpt' and `fpsqrt'2131- heavy cleanup of floating math functions which gives much better performance,2132 especially for code compiled in unsafe mode2133- calling `assert' with a single argument shows the tested expression2134 on failure2135- various bugfixes and cleaning up213621374.3.021382139- fixed bug in `move-memory!' that caused negative offsets to be accepted2140 (thanks to Jim Ursetto)2141- removed tracing facility and apply-hook (see the "trace" egg2142 for a replacement for tracing and breakpoints)2143- chicken-install(1): renamed `-host-extension' option to `-host'2144- added support for a make(1) configuration file ("config.make")2145- `chicken-install' now allows specifiying a proxy for retrieving2146 extensions over HTTP (thanks to Nicolas Pelletier)2147- fixed bug in `cond-expand' that incorrectly renamed feature-identifiers2148 if the form was the product of a syntax expansion (reported by Thomas2149 Bushnell)2150- import-libraries are only generated by the compiler if they don't exist2151 yet and if the content has actually changed (this simplifies makefile-2152 rules in some cases)2153- it is now possible to pass a config-file to `make(1)' instead of specifying2154 all build-options as variables on the command-line (see README)2155- removed compiler options for "benchmark-mode" and replaced them with a2156 new optimization level (5) (note that `-O5' does not imply fixnum mode2157 anymore)2158- `hen.el' and `scheme-complete.el' are not bundled with the core system2159 anymore - `hen.el' is currently not maintained, and `scheme-complete.el'2160 has its own release cycle; both files are available, see2161 http://chicken.wiki.br/emacs2162- removed meaningless benchmark suite and cleaned up2163- added optional argument to `grep' that allows applying a function2164 to each matched item (contributed by Tony Sidaway)2165- added extension-property `import-only', which makes it possible to2166 create extensions that have no runtime part2167- the argument to `seconds->string', `seconds->utc-time' and2168 `seconds->local-time' is now optional and defaults to the value2169 of `(current-seconds)' (suggested by Mario Goulart)2170- removed read-syntax for `syntax' form2171- fixed bug in `get-condition-property'2172- fixed bug in windows version of `process-execute'2173- TCP timeouts throw exception of kind `timeout' to allow2174 distinguishing between timeouts and other errors2175- removed some internal functions that manipulate environments2176- fixed bugs in `standard-extension' (`setup-api' module) and added keyword2177 arguments for building static extensions and adding custom properties2178- when cross-compiling, `chicken-install(1)' doesn't pass `-setup-mode'2179 (the host tools should not attempt to load target binaries)2180- `installation-prefix' in the `setup-api' module was not always correctly2181 set2182- the `-force' option in `chicken-install(1)' overrides the CHICKEN version2183 check2184- disabled e-mail feature in `chicken-bug(1)', since it doesn't work2185 anyway, in the moment2186- fixed bug in `reexport' that made it impossible to reexport core library2187 definitions2188- fix in optimizer that sometimes caused C functions for inlined2189 procedures to be emitted multiple times (Thanks to Joerg Wittenberger)2190- documented `define-compiler-syntax' and `let-compiler-syntax'2191- printer for hash-tables shows current number of stores items2192- when upgrading during installation of a dependency `chicken-install'2193 shows the version to upgrade to (Thanks to Christian Kellermann)2194- Updated scheme-complete (Thanks to Alex Shinn)2195- fix for pathnames with whitespace in 'runtests.sh' on Windows2196- fix for 'normalize-pathname' with absolute pathname argument2197- added 'decompose-directory' to unit files2198- fix for 'local-timezone-abbreviation' - wasn't using the current time2199 so tz-name constant2200- deprecated 'make-pathname' separator argument220122024.2.022032204- added compiler option `-emit-all-import-libraries'2205- added `reexport'2206- added compiler and interpreter option `-setup-mode'2207- various minor performance improvements2208- fix for 'create-directory' when parents wanted2209- `for-each-line' and `for-each-argv-line' have been deprecated2210- chicken-install tries alternative servers if server responds with error2211- fixed load bug (ticket #72)2212- new library procedure `get-condition-property'2213- many mingw build fixes (thanks tp Fadi Moukayed)2214- setup-api: deprecated `cross-chicken' (use `cond-expand' or2215 `feature?' instead)2216- added topological-sort to data-structures unit; chicken-install2217 sorts dependencies before installing them2218- "-optimize-level 2" enables inlining by default2219- disable executable stack in assembly code modules (patch by2220 Zbigniew, reported by Marijn Schouten)2221- csc now always exits with a status code of 1 on errors (patch by Zbigniew)222222234.1.022242225- The new parameter "parantheses-synonyms" and the command-line2226 option "-no-parantheses-synonyms" allow disabling list-like behaviour2227 of "{ ... }" and "[ ... ]" tokens2228- The new parameter "symbol-escape" and the command-line2229 option "-no-symbol-escape" allows disabling "| ... |" symbol escape2230 syntax2231- Added command-line option "-r5rs-syntax" to disable CHICKEN-specific2232 read-syntax2233- Removed "macro?" and "undefine-macro!"2234- Support for Microsoft Visual Studio / MSVC has been dropped2235- The compiler provides now a simple flow-analysis pass that does2236 basic checking of argument-counts and -types for core library procedure2237 calls (new option "-scrutinize")2238- New compiler-options "-no-argc-checks", "-no-bound-checks",2239 "-no-procedure checks", "-no-procedure-checks-for-usual-bindings",2240 "-types TYPEFILE" and "-consult-inline-file FILENAME"2241- Added a "chicken-setup" stub-application to catch incorrect use of2242 this tool (which has been replaced in 4.0.0 with "chicken-install")2243- Changed "setup-install-flag" and "setup-verbose-flag" to2244 "setup-install-mode" and "setup-verbose-mode" in "setup-api" module,2245 the old names are still available but deprecated2246- Posix unit:2247 added "socket?", "block-device?" and "character-device?", deprecated2248 redundant "stat-..." procedures2249- Added "directory-exists?"2250- "(for-each (lambda ...) X)" is compiled as a loop2251- The argument-count check for format-strings for "[sf]printf" with a constant2252 string argument is done at compile-time225322544.0.022552256- removed `apropos' and `apropos-list' from the "utils" library unit;2257 available as an extension2258- removed texinfo and PDF documentation - this will possible be added back2259 later2260- replaced PCRE regex engine with Alex Shinn's "irregex" regular expression2261 package2262- removed `-extension' option2263- removed `-static-extensions' csc option and added `-static-extension NAME'2264- `regex' unit: removed `regexp*' and `regex-optimize'2265- added `CHICKEN_new_finalizable_gc_root()'2266- `length' checks its argument for being cyclic2267- removed custom declarations and "link-options" and "c-options" declarations2268- deprecated "-quiet" option to "chicken" program2269- added "-update-db" option to chicken-install2270- the compiler now suggests possibly required module-imports2271- moved non-standard syntax-definitions into "chicken-syntax" library unit2272- the pretty-printer prints the end-of-file object readably now2273- alternative conditional execution paths have separate allocation computation2274 (previously the allocation of all alternatives was coalesced)2275- removed unused "%kmp-search" from "srfi-13" library unit2276- expander handles syntax-reexports and makes unexported syntax available2277 for exported expanders in import libraries2278- added checks in some procedures in the "tcp" library unit2279- the macro system has been completely overhauled and converted2280 to hygienic macros2281- a macro-aware module system has been added2282- added "-sx" option to csi2283- removed the following deprecated functions:2284 [un]shift!2285 andmap ormap2286 byte-vector? byte-vector-fill!2287 make-byte-vector byte-vector2288 byte-vector-set! byte-vector-ref2289 byte-vector->list list->byte-vector2290 string->byte-vector byte-vector->string2291 byte-vector-length2292 make-static-byte-vector static-byte-vector->pointer2293 byte-vector-move! byte-vector-append!2294 set-file-position! set-user-id! set-group-id!2295 set-process-group-id!2296 macro? undefine-macro!2297- the situation-identifiers "run-time" and "compile-time" have2298 been removed2299- the compiler options "-check-imports", "-import" and "-emit-exports"2300 have been removed2301- new procedures:2302 strip-syntax2303 expand2304- new macros2305 define-syntax2306 module2307 export2308- the following macros have been removed:2309 define-foreign-record2310 define-foreign-enum2311 define-macro2312 define-extension2313- "local" mode, in which locally defined exported toplevel variables can2314 be inlined2315- new options and declarations "[-]local", "[-]inline-global" and "-emit-inline-file"2316- optimization levels changed to use inlining:2317 -optimize-level 3: enables -inline -local (but *not* -unsafe)2318 -optimize-level 4: enables -inline -local -unsafe2319- increased default inlining-limit to 202320- support for cross-module inlining2321- "make <VARIABLES> bench" runs the benchmark suite2322- "chicken-setup" has been replaced by new command line tools2323 "chicken-install", "chicken-uninstall" and "chicken-status", which are2324 more flexible and allow greater freedom when creating local or application-2325 specific repositories2326- extension-installation can be done directly from SVN repositories or a local2327 file tree2328- enabled chicken mirror site as alternative download location