Fix VPATH build (patch by Joe Orton <jorton at redhat dot com>)

diff --git a/ext/mbstring/config.m4 b/ext/mbstring/config.m4
index 97ab0f59586afafdd63f9142d26be6691e612cde..af51b8190981c8d93825c1e64bbf55084202f26d 100644 (file)
--- a/ext/mbstring/config.m4
+++ b/ext/mbstring/config.m4
@@ -53,6 +53,7 @@ AC_DEFUN([PHP_MBSTRING_SETUP_MBREGEX], [
     AC_DEFINE([HAVE_MBREGEX], 1, [whether to have multibyte regex support])
 
     PHP_MBSTRING_ADD_INCLUDE([mbregex])
+    PHP_MBSTRING_ADD_BUILD_DIR([mbregex])
 
     PHP_MBSTRING_ADD_SOURCES([
       php_mbregex.c