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	2017-07-21 11:04:10.000000000 +0200
+++ ./usr/include/sys/cdefs.h	2017-08-07 22:50:14.093361547 +0200
@@ -218,7 +218,11 @@
  * _FILE_OFFSET_BITS 64 support.
  * See https://android.googlesource.com/platform/bionic/+/master/docs/32-bit-abi.md
  */
-#if !defined(__LP64__) && defined(_FILE_OFFSET_BITS) && _FILE_OFFSET_BITS == 64
+/* Using _FILE_OFFSET_BITS=64 does not work well on Android
+ * and can cause problems when mixing libraries, which is why
+ * Termux hides away this unless TERMUX_EXPOSE_FILE_OFFSET64
+ * is defined. */
+#if !defined(__LP64__) && defined(_FILE_OFFSET_BITS) && _FILE_OFFSET_BITS == 64 && defined(TERMUX_EXPOSE_FILE_OFFSET64)
 #  define __USE_FILE_OFFSET64 1
 /*
  * Note that __RENAME_IF_FILE_OFFSET64 is only valid if the off_t and off64_t