make-ext4fs: avoid using libc internal declarations

Signed-off-by: Jo-Philipp Wich <jow@openwrt.org>

SVN-Revision: 45591

tools/make-ext4fs/Makefile

@@ -7,14 +7,14 @@
 include $(TOPDIR)/rules.mk
 
 PKG_NAME:=make-ext4fs
-PKG_VERSION:=2015-04-08
+PKG_VERSION:=2015-05-01
 
 PKG_SOURCE:=$(PKG_NAME)-$(PKG_VERSION).tar.gz
 PKG_SOURCE_URL:=http://git.openwrt.org/project/make_ext4fs.git
 PKG_SOURCE_PROTO:=git
-PKG_SOURCE_VERSION:=2f713da924fa20cf89c25f2d122b54b959b09f87
+PKG_SOURCE_VERSION:=7c15bef6c732896d9ffb883fb1480fcd60c94a50
 PKG_SOURCE_SUBDIR:=$(PKG_NAME)-$(PKG_VERSION)
-PKG_MIRROR_MD5SUM:=c88f4f7c76e3142fc5ef12a723d9ef9b
+PKG_MIRROR_MD5SUM:=d81eca37852cbf840108e1a8ad8fb22f
 PKG_CAT:=zcat
 
 HOST_BUILD_DIR:=$(BUILD_DIR_HOST)/$(PKG_NAME)-$(PKG_VERSION)