Hi, mbregex breaks a VPATH build in the 4.3 branch currently, here is a fix:
Index: ext/mbstring/config.m4 =================================================================== RCS file: /repository/php-src/ext/mbstring/config.m4,v retrieving revision 1.28.2.4 diff -u -r1.28.2.4 config.m4 --- ext/mbstring/config.m4 26 Oct 2003 03:42:27 -0000 1.28.2.4 +++ ext/mbstring/config.m4 27 Oct 2003 11:47:40 -0000 @@ -53,6 +53,7 @@ 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