-# strstr.m4 serial 14
+# 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,
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