Patch stdlib.h to include stdint.h

Fixes graphviz build.

build-package.sh

@@ -221,7 +221,7 @@ termux_step_setup_variables() {
 	TERMUX_STANDALONE_TOOLCHAIN="$TERMUX_TOPDIR/_lib/${TERMUX_NDK_VERSION}-${TERMUX_ARCH}-${TERMUX_API_LEVEL}"
 	# Bump the below version if a change is made in toolchain setup to ensure
 	# that everyone gets an updated toolchain:
-	TERMUX_STANDALONE_TOOLCHAIN+="-v1"
+	TERMUX_STANDALONE_TOOLCHAIN+="-v2"
 
 	export prefix=${TERMUX_PREFIX}
 	export PREFIX=${TERMUX_PREFIX}

ndk-patches/stdlib.h.patch

@@ -0,0 +1,11 @@
+diff -u -r /home/fornwall/lib/android-ndk/sysroot/usr/include/stdlib.h ./usr/include/stdlib.h
+--- /home/fornwall/lib/android-ndk/sysroot/usr/include/stdlib.h	2017-06-20 17:41:56.000000000 +0200
++++ ./usr/include/stdlib.h	2017-07-01 01:50:17.192362546 +0200
+@@ -35,6 +35,7 @@
+ #include <alloca.h>
+ #include <malloc.h>
+ #include <stddef.h>
++#include <stdint.h>
+ 
+ __BEGIN_DECLS
+