sdch/open_vcdiff/depot/opensource/open-vcdiff/m4/ac_have_attribute.m4 - Issue 4096: Use open-vcdiff for sdch compression on the Mac

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Side by Side Diff: sdch/open_vcdiff/depot/opensource/open-vcdiff/m4/ac_have_attribute.m4

Issue 4096: Use open-vcdiff for sdch compression on the Mac (Closed) Base URL: svn://chrome-svn/chrome/trunk/src/

Patch Set: '' Created 12 years, 3 months ago

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1 AC_DEFUN([AX_C___ATTRIBUTE__], [	1 AC_DEFUN([AX_C___ATTRIBUTE__], [

2 AC_MSG_CHECKING(for __attribute__)	2 AC_MSG_CHECKING(for __attribute__)

3 AC_CACHE_VAL(ac_cv___attribute__, [	3 AC_CACHE_VAL(ac_cv___attribute__, [

4 AC_TRY_COMPILE(	4 AC_TRY_COMPILE(

5 [#include <stdlib.h>	5 [#include <stdlib.h>

6 static void foo(void) __attribute__ ((unused));	6 static void foo(void) __attribute__ ((unused));

7 void foo(void) { exit(1); }],	7 void foo(void) { exit(1); }],

8 [],	8 [],

9 ac_cv___attribute__=yes,	9 ac_cv___attribute__=yes,

10 ac_cv___attribute__=no	10 ac_cv___attribute__=no

11 )])	11 )])

12 if test "$ac_cv___attribute__" = "yes"; then	12 if test "$ac_cv___attribute__" = "yes"; then

13 AC_DEFINE(HAVE___ATTRIBUTE__, 1, [define if your compiler has __attribute__] )	13 AC_DEFINE(HAVE___ATTRIBUTE__, 1, [define if your compiler has __attribute__] )

14 fi	14 fi

15 AC_MSG_RESULT($ac_cv___attribute__)	15 AC_MSG_RESULT($ac_cv___attribute__)

16 ])	16 ])

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