+AC_CHECK_HEADER(pcreposix.h, AC_DEFINE(HAVE_PCREPOSIX_H, [], [define this if we have the <pcreposix.h> header file]))
+if test "x$ac_cv_header_pcreposix_h" = "xyes"; then
+ AC_DEFINE(HAVE_REGEX_H [], [define if we have any regex])
+ REGEX_EXTENDED=yes
+ REGEX_PCRE=yes
+ REGEX=yes
+ LIBS="$LIBS -lpcreposix"
+else
+