(jm_PREREQ_REGEX): Require ACX_C_RESTRICT.

diff --git a/m4/regex.m4 b/m4/regex.m4
index 75189ad3a822a2b2e43566310902186f235dabbb..e071223cd2143bac1f1b868205f3437c36c9bf8b 100644 (file)
--- a/m4/regex.m4
+++ b/m4/regex.m4
@@ -1,4 +1,4 @@
-#serial 14
+#serial 15
 
 dnl Initially derived from code in GNU grep.
 dnl Mostly written by Jim Meyering.
@@ -105,6 +105,7 @@ AC_DEFUN([jm_PREREQ_REGEX],
   dnl Persuade glibc <string.h> to declare mempcpy().
   AC_REQUIRE([AC_GNU_SOURCE])
 
+  AC_REQUIRE([ACX_C_RESTRICT])
   AC_REQUIRE([AC_FUNC_ALLOCA])
   AC_REQUIRE([AC_HEADER_STDC])
   AC_CHECK_HEADERS_ONCE(limits.h string.h wchar.h wctype.h)