diff -ruN /usr/ports/net/tigervnc/Makefile net/tigervnc/Makefile
--- /usr/ports/net/tigervnc/Makefile	2015-11-16 10:19:46.815394069 +0900
+++ net/tigervnc/Makefile	2015-12-11 09:50:12.831178686 +0900
@@ -134,8 +134,8 @@
 	@cd ${WRKSRC}/unix/xserver/ && ${PATCH} -p1 < ${WRKSRC}/unix/xserver${TIGERVNC_XORG_PATCH_VER}.patch
 
 post-configure:
-	@cd ${WRKSRC}/unix/xserver/ && ${SETENV} ${CONFIGURE_ENV} ${AUTORECONF} -fiv
-	@cd ${WRKSRC}/unix/xserver/ && ${SETENV} ${CONFIGURE_ENV} ./configure ${CONFIGURE_ARGS}
+	@cd ${WRKSRC}/unix/xserver/ && ${SETENV} ${CONFIGURE_ENV} ${MAKE_ENV} ${AUTORECONF} -fiv
+	@cd ${WRKSRC}/unix/xserver/ && ${SETENV} ${CONFIGURE_ENV} ${MAKE_ENV} ./configure ${CONFIGURE_ARGS}
 
 post-build:
 	@cd ${WRKSRC}/unix/xserver/ && ${SETENV} ${MAKE_ENV} ${MAKE_CMD} ${MAKE_ARGS} SHELL=${LOCALBASE}/bin/bash