-# strstr.m4 serial 13
-dnl Copyright (C) 2008, 2009, 2010 Free Software Foundation, Inc.
+# strstr.m4 serial 15
+dnl Copyright (C) 2008-2011 Free Software Foundation, Inc.
dnl This file is free software; the Free Software Foundation
dnl gives unlimited permission to copy and/or distribute it,
dnl with or without modifications, as long as this notice is preserved.
AC_REQUIRE([gl_FUNC_MEMCHR])
if test "$gl_cv_func_memchr_works" != yes; then
REPLACE_STRSTR=1
- AC_LIBOBJ([strstr])
else
dnl Detect http://sourceware.org/bugzilla/show_bug.cgi?id=12092.
AC_CACHE_CHECK([whether strstr works],
])
if test "$gl_cv_func_strstr_works_always" != yes; then
REPLACE_STRSTR=1
- AC_LIBOBJ([strstr])
fi
fi
]) # gl_FUNC_STRSTR_SIMPLE
return result;
]])],
[gl_cv_func_strstr_linear=yes], [gl_cv_func_strstr_linear=no],
- [dnl Only glibc > 2.12 and cygwin > 1.7.7 are known to have a
- dnl bug-free strstr that works in linear time.
+ [dnl Only glibc > 2.12 on processors without SSE 4.2 instructions and
+ dnl cygwin > 1.7.7 are known to have a bug-free strstr that works in
+ dnl linear time.
AC_EGREP_CPP([Lucky user],
[
#include <features.h>
#ifdef __GNU_LIBRARY__
#if ((__GLIBC__ == 2 && __GLIBC_MINOR__ > 12) || (__GLIBC__ > 2)) \
+ && !(defined __i386__ || defined __x86_64__) \
&& !defined __UCLIBC__
Lucky user
#endif
REPLACE_STRSTR=1
fi
fi
- if test $REPLACE_STRSTR = 1; then
- AC_LIBOBJ([strstr])
- fi
]) # gl_FUNC_STRSTR