- Introducing 1st part of "show unknown configure options" and nuked PHP_REGEX macro for good

acinclude.m4

@@ -2560,28 +2560,50 @@ EOF
 ])
 
 dnl
-dnl PHP_REGEX
+dnl PHP_CHECK_CONFIGURE_OPTIONS
 dnl
-AC_DEFUN([PHP_REGEX],[
-  if test "$REGEX_TYPE" = "php"; then
-    AC_DEFINE(HAVE_REGEX_T_RE_MAGIC, 1, [ ])
-    AC_DEFINE(HSREGEX,1,[ ])
-    AC_DEFINE(REGEX,1,[ ])
-    PHP_ADD_SOURCES(regex, regcomp.c regexec.c regerror.c regfree.c)
-  elif test "$REGEX_TYPE" = "system"; then
-    AC_DEFINE(REGEX,0,[ ])
-    dnl Check if field re_magic exists in struct regex_t
-    AC_CACHE_CHECK([whether field re_magic exists in struct regex_t], ac_cv_regex_t_re_magic, [
-      AC_TRY_COMPILE([#include <sys/types.h>
-#include <regex.h>], [regex_t rt; rt.re_magic;],
-      [ac_cv_regex_t_re_magic=yes], [ac_cv_regex_t_re_magic=no])
-    ])
-    if test "$ac_cv_regex_t_re_magic" = "yes"; then
-      AC_DEFINE([HAVE_REGEX_T_RE_MAGIC], [ ], 1)
+AC_DEFUN([PHP_CHECK_CONFIGURE_OPTIONS],[
+  for arg in $ac_configure_args; do
+    case $arg in
+      --with-*[)]
+      	arg_name="`echo [$]arg | $SED -e 's/--with-//g' -e 's/=.*//g'`"
+        ;;
+      --without-*[)]
+      	arg_name="`echo [$]arg | $SED -e 's/--without-//g' -e 's/=.*//g'`"
+        ;;
+      --enable-*[)]
+      	arg_name="`echo [$]arg | $SED -e 's/--enable-//g' -e 's/=.*//g'`"
+        ;;
+      --disable-*[)]
+      	arg_name="`echo [$]arg | $SED -e 's/--disable-//g' -e 's/=.*//g'`"
+        ;;
+      *[)]
+      	continue
+        ;;
+    esac
+    case $arg_name in
+      # Allow --disable-all / --enable-all
+      all[)];;
+
+      # Allow certain libtool options
+      libtool-lock | pic | tags | shared | static | fast-install | gnu-ld[)];;
+
+      # Allow certain TSRM options
+      tsrm-pth | tsrm-st | tsrm-pthreads[)];;
+
+      # Allow certain Zend options
+      zend-vm | maintainer-zts | inline-optimization | zend-multibyte[)];;
+
+      # All the rest must be set using the PHP_ARG_* macros
+      *[)]
+        is_arg_set=PHP_[]`echo [$]arg_name | tr 'abcdefghijklmnopqrstuvwxyz-' 'ABCDEFGHIJKLMNOPQRSTUVWXYZ_'`
+        if eval test -z "\$$is_arg_set"; then
+          PHP_UNKNOWN_CONFIGURE_OPTIONS="$PHP_UNKNOWN_CONFIGURE_OPTIONS
+[$]arg"
         fi
-  fi
-  AC_MSG_CHECKING([which regex library to use])
-  AC_MSG_RESULT([$REGEX_TYPE])
+        ;;
+    esac
+  done
 ])
 
 dnl