add missing dependency

git-svn-id: svn://svn.openwrt.org/openwrt/trunk@12270 3c298f89-4303-0410-b956-a3cf2f4a3e73

package/wpa_supplicant/Makefile

@@ -16,6 +16,8 @@ PKG_MD5SUM:=b51b2975f21006f85f7297f3fb1acde1
 PKG_SOURCE_URL:=http://hostap.epitest.fi/releases
 PKG_SOURCE:=$(PKG_NAME)-$(PKG_VERSION).tar.gz
 
+PKG_BUILD_DEPENDS:=madwifi
+
 include $(INCLUDE_DIR)/package.mk
 STAMP_CONFIGURED:=$(STAMP_CONFIGURED)_$(call confvar,CONFIG_PACKAGE_kmod-madwifi CONFIG_WPA_SUPPLICANT_NO_TIMESTAMP_CHECK)