fix bug #821 minify file size is 0

build/32bits/config.m4

@@ -1,7 +1,84 @@
 PHP_ARG_ENABLE(phalcon, whether to enable phalcon framework, [ --enable-phalcon   Enable phalcon framework])
 
 if test "$PHP_PHALCON" = "yes"; then
-  AC_DEFINE(HAVE_PHALCON, 1, [Whether you have Phalcon Framework])
-  PHP_NEW_EXTENSION(phalcon, phalcon.c, $ext_shared)
-fi
+	AC_DEFINE(HAVE_PHALCON, 1, [Whether you have Phalcon Framework])
+	PHP_NEW_EXTENSION(phalcon, phalcon.c, $ext_shared)
+
+	PHP_ADD_EXTENSION_DEP([phalcon], [spl])
+
+	old_CPPFLAGS=$CPPFLAGS
+	CPPFLAGS="$CPPFLAGS $INCLUDES"
+
+	AC_CHECK_HEADERS(
+		[ext/filter/php_filter.h],
+		[
+			PHP_ADD_EXTENSION_DEP([phalcon], [filter])
+			AC_DEFINE([PHALCON_USE_PHP_FILTER], [1], [Whether PHP filter extension is present at compile time])
+		],
+		,
+		[[#include "main/php.h"]]
+	)
+
+	AC_CHECK_HEADERS(
+		[ext/igbinary/igbinary.h],
+		[
+			PHP_ADD_EXTENSION_DEP([phalcon], [igbinary])
+			AC_DEFINE([PHALCON_USE_PHP_IGBINARY], [1], [Whether PHP igbinary extension is present at compile time])
+		],
+		,
+		[[#include "main/php.h"]]
+	)
 
+	AC_CHECK_DECL(
+		[HAVE_BUNDLED_PCRE],
+		[
+			AC_CHECK_HEADERS(
+				[ext/pcre/php_pcre.h],
+				[
+					PHP_ADD_EXTENSION_DEP([phalcon], [pcre])
+					AC_DEFINE([PHALCON_USE_PHP_PCRE], [1], [Whether PHP pcre extension is present at compile time])
+				],
+				,
+				[[#include "main/php.h"]]
+			)
+		],
+		,
+		[[#include "php_config.h"]]
+	)
+
+	AC_CHECK_DECL(
+		[HAVE_JSON],
+		[
+			AC_CHECK_HEADERS(
+				[ext/json/php_json.h],
+				[
+					PHP_ADD_EXTENSION_DEP([phalcon], [json])
+					AC_DEFINE([PHALCON_USE_PHP_JSON], [1], [Whether PHP json extension is present at compile time])
+				],
+				,
+				[[#include "main/php.h"]]
+			)
+		],
+		,
+		[[#include "php_config.h"]]
+	)
+
+	AC_CHECK_DECL(
+		[HAVE_PHP_SESSION],
+		[
+			AC_CHECK_HEADERS(
+				[ext/session/php_session.h],
+				[
+					PHP_ADD_EXTENSION_DEP([phalcon], [session])
+					AC_DEFINE([PHALCON_USE_PHP_SESSION], [1], [Whether PHP session extension is present at compile time])
+				],
+				,
+				[[#include "main/php.h"]]
+			)
+		],
+		,
+		[[#include "php_config.h"]]
+	)
+
+	CPPFLAGS=$old_CPPFLAGS
+fi