summaryrefslogtreecommitdiff
path: root/configure.ac
diff options
context:
space:
mode:
Diffstat (limited to 'configure.ac')
-rw-r--r--configure.ac21
1 files changed, 21 insertions, 0 deletions
diff --git a/configure.ac b/configure.ac
index 5601e8bac9..71ac89fab3 100644
--- a/configure.ac
+++ b/configure.ac
@@ -706,6 +706,27 @@ else
fi
AC_SUBST(NO_C99_FORMAT)
#
+# Define NO_REGEX if you have no or inferior regex support in your C library.
+AC_CACHE_CHECK([whether the platform regex can handle null bytes],
+ [ac_cv_c_excellent_regex], [
+AC_EGREP_CPP(yippeeyeswehaveit,
+ AC_LANG_PROGRAM([AC_INCLUDES_DEFAULT
+#include <regex.h>
+],
+[#ifdef REG_STARTEND
+yippeeyeswehaveit
+#endif
+]),
+ [ac_cv_c_excellent_regex=yes],
+ [ac_cv_c_excellent_regex=yes])
+])
+if test $ac_cv_c_excellent_regex = yes; then
+ NO_REGEX=
+else
+ NO_REGEX=YesPlease
+fi
+AC_SUBST(NO_REGEX)
+#
# Define FREAD_READS_DIRECTORIES if your are on a system which succeeds
# when attempting to read from an fopen'ed directory.
AC_CACHE_CHECK([whether system succeeds to read fopen'ed directory],