~ chicken-core (chicken-5) f44cca8b1ee33a13ae5e18d4ee60a137cbaeb854

commit f44cca8b1ee33a13ae5e18d4ee60a137cbaeb854
Author:     Peter Bex <peter@more-magic.net>
AuthorDate: Sun Jan 29 17:38:28 2017 +0100
Commit:     Kooda <kooda@upyum.com>
CommitDate: Sat Feb 25 17:44:06 2017 +0100

    Simplify C_STACK_GROWS_DOWNWARD detection
    
    Instead of first defining it to -1 if it's undefined and then checking
    whether it has been defined as -1, we simply check if it's undefined.
    
    There seems to be no good reason for the current behaviour.
    
    Signed-off-by: Kooda <kooda@upyum.com>

diff --git a/chicken.h b/chicken.h
index caabbd4f..179f02be 100644
--- a/chicken.h
+++ b/chicken.h
@@ -293,17 +293,10 @@ void *alloca ();
 
 
 /* Stack growth direction; used to compute stack addresses */
-
 #ifndef C_STACK_GROWS_DOWNWARD
-# define C_STACK_GROWS_DOWNWARD    -1
-#endif
-
-#if C_STACK_GROWS_DOWNWARD == -1
 # ifdef __hppa__
-#  undef C_STACK_GROWS_DOWNWARD
 #  define C_STACK_GROWS_DOWNWARD 0
 # else
-#  undef C_STACK_GROWS_DOWNWARD
 #  define C_STACK_GROWS_DOWNWARD 1
 # endif
 #endif