libaudiofile: Multiple bug fixes, CVE-2017-6837, CVE-2017-6838, CVE-2017-6839, CVE-2015-7747 & GCC6 patches

Signed-off-by: Ted Hess <thess@kitschensync.net>

libs/libaudiofile/Makefile

@@ -1,6 +1,4 @@
 #
-# Copyright (C) 2006-2016 OpenWrt.org
-#
 # This is free software, licensed under the GNU General Public License v2.
 # See /LICENSE for more information.
 #
@@ -9,7 +7,7 @@ include $(TOPDIR)/rules.mk
 
 PKG_NAME:=audiofile
 PKG_VERSION:=0.3.6
-PKG_RELEASE:=3
+PKG_RELEASE:=4
 
 PKG_SOURCE:=$(PKG_NAME)-$(PKG_VERSION).tar.xz
 PKG_SOURCE_URL:=@GNOME/$(PKG_NAME)/0.3
@@ -39,8 +37,10 @@ endef
 CONFIGURE_ARGS+= \
 	--enable-shared \
 	--enable-static \
-	--disable-examples \
-	--with-build-cc="$(HOSTCC)"
+	--disable-docs \
+	--disable-coverage \
+	--disable-examples
+
 
 TARGET_CFLAGS+= $(FPIC)