-AC_ARG_WITH(regex, AC_HELP_STRING([--with-regex], [Use the GNU regex library]),
- [mutt_cv_regex=yes],
- [AC_CHECK_FUNCS(regcomp, mutt_cv_regex=no, mutt_cv_regex=yes)])
-
-if test $mutt_cv_regex = no ; then
- AC_CACHE_CHECK([whether your system's regexp library is completely broken],
- [mutt_cv_regex_broken],
- AC_TRY_RUN([
-#include <unistd.h>
-#include <regex.h>
-main() { regex_t blah ; regmatch_t p; p.rm_eo = p.rm_eo; return regcomp(&blah, "foo.*bar", REG_NOSUB) || regexec (&blah, "foobar", 0, NULL, 0); }],
- mutt_cv_regex_broken=no, mutt_cv_regex_broken=yes, mutt_cv_regex_broken=yes))
- if test $mutt_cv_regex_broken = yes ; then
- echo "Using the included GNU regex instead." >&AC_FD_MSG
- mutt_cv_regex=yes
- fi