Make it possible to opt in to _FILE_OFFSET_BITS=64

build-package.sh

@@ -446,7 +446,7 @@ termux_step_setup_toolchain() {
 	TERMUX_STANDALONE_TOOLCHAIN="$TERMUX_TOPDIR/_lib/${TERMUX_NDK_VERSION}-${TERMUX_ARCH}-${TERMUX_PKG_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+="-v6"
+	TERMUX_STANDALONE_TOOLCHAIN+="-v7"
 
 	# We put this after system PATH to avoid picking up toolchain stripped python
 	export PATH=$PATH:$TERMUX_STANDALONE_TOOLCHAIN/bin

ndk-patches/sys-cdefs.h.patch

@@ -1,17 +1,19 @@
 diff -u -r /home/fornwall/lib/android-ndk/sysroot/usr/include/sys/cdefs.h ./usr/include/sys/cdefs.h
 --- /home/fornwall/lib/android-ndk/sysroot/usr/include/sys/cdefs.h	2017-06-20 17:41:56.000000000 +0200
-+++ ./usr/include/sys/cdefs.h	2017-07-07 03:27:59.327850834 +0200
++++ ./usr/include/sys/cdefs.h	2017-07-09 23:37:26.453911992 +0200
-@@ -234,13 +234,6 @@
+@@ -237,9 +237,15 @@
- # define __USE_BSD 1
+ /* _FILE_OFFSET_BITS 64 support. */
+ #if !defined(__LP64__) && defined(_FILE_OFFSET_BITS)
+ #if _FILE_OFFSET_BITS == 64
++#ifdef TERMUX_EXPOSE_FILE_OFFSET64
++/* Using _FILE_OFFSET_BITS=64 does not work very well on Android
++ * and can cause problems when mixing libraries, which is why
++ * Termux hides away this unless TERMUX_EXPOSE_FILE_OFFSET64
++ * is defined. */
+ #define __USE_FILE_OFFSET64 1
  #endif
+ #endif
++#endif
  
--/* _FILE_OFFSET_BITS 64 support. */
--#if !defined(__LP64__) && defined(_FILE_OFFSET_BITS)
--#if _FILE_OFFSET_BITS == 64
--#define __USE_FILE_OFFSET64 1
--#endif
--#endif
--
  #define  __BIONIC__   1
  #include <android/api-level.h>
-