[Mingw-notify] [ mingw-Bugs-3022047 ] str[n]casecmp not declared under __STRICT_ANSI__

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Bugs item #3022047, was opened at 2010-06-27 17:13
Message generated for change (Comment added) made by caldo_de_cana
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Category: mingw runtime
Group: Behaves as Documented
Status: Closed
Resolution: Invalid
Priority: 5
Private: No
Submitted By: Ramiro Polla (caldo_de_cana)
Assigned to: Nobody/Anonymous (nobody)
Summary: str[n]casecmp not declared under __STRICT_ANSI__

Initial Comment:
$ cat strings.c 
#include <strings.h>

void foo(void)
{
    strcasecmp(NULL, NULL);
    strncasecmp(NULL, NULL, 0);
}
$ i686-mingw32-gcc -o strings.o -c strings.c -std=c99 -Werror=implicit-function-declaration
strings.c: In function 'foo':
strings.c:5: error: implicit declaration of function 'strcasecmp'
strings.c:6: error: implicit declaration of function 'strncasecmp'
$ cat strcasecmp.diff 
--- /usr/i686-mingw32/include/string.h.orig	2010-06-27 13:46:10.000000000 -0300
+++ /usr/i686-mingw32/include/string.h	2010-06-27 14:01:04.000000000 -0300
@@ -116,6 +116,9 @@
 #endif /* _UWIN */
 #endif /* _NO_OLDNAMES */
 
+#else
+int __cdecl __MINGW_NOTHROW strcasecmp (const char*, const char *);
+int  __cdecl __MINGW_NOTHROW strncasecmp (const char *, const char *, size_t);
 #endif	/* Not __STRICT_ANSI__ */
 
 #ifndef _WSTRING_DEFINED
$ sudo patch -p0 < strcasecmp.diff 
patching file /usr/i686-mingw32/include/string.h
$ i686-mingw32-gcc -o strings.o -c strings.c -std=c99 -Werror=implicit-function-declaration
$

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Comment By: Ramiro Polla (caldo_de_cana)
Date: 2010-07-06 17:43

Message:
Sorry, I got the wrong standard...
'man strcasecmp' says 4.4BSD, POSIX.1-2001.
It should be available under some other ifdef then.
(Is it possible to change the bug title? I couldn't figure out how. should
I open a feature request?)

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Comment By: Earnie Boyd (earnie)
Date: 2010-07-06 15:43

Message:
strcasecmp and strncasecmp are not ANSI required.  Therefore of course
__STRICT_ANSI__ is going to exclude them.  The fix therefore is to not use
__STRICT_ANSI__ if you want to use these functions.

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Comment By: Christophe PARIS (toffparis)
Date: 2010-07-03 19:26

Message:
Thanks for the fix.
I'm having the same problem here trying to cross-compile ffmpeg.
 hope it will be officially fixed soon.

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You can respond by visiting: 
https://sourceforge.net/tracker/?func=detail&atid=102435&aid=3022047&group_id=2435