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.
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.
else
dnl Detect http://sourceware.org/bugzilla/show_bug.cgi?id=12092.
AC_CACHE_CHECK([whether strstr works],
else
dnl Detect http://sourceware.org/bugzilla/show_bug.cgi?id=12092.
AC_CACHE_CHECK([whether strstr works],
- [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)) \
AC_EGREP_CPP([Lucky user],
[
#include <features.h>
#ifdef __GNU_LIBRARY__
#if ((__GLIBC__ == 2 && __GLIBC_MINOR__ > 12) || (__GLIBC__ > 2)) \