Contribs: fix compilation for Android

Signed-off-by: Jean-Baptiste Kempf <jb@videolan.org>

contrib/src/gpg-error/gpgerror-android.patch

+--- libgpg-error/src/gpgrt-int.h.orig	2014-09-17 15:23:22.992333706 +0200
++++ libgpg-error/src/gpgrt-int.h	2014-09-17 15:23:52.772783925 +0200
+@@ -105,9 +105,9 @@
+ 
+ int _gpgrt_fflush (gpgrt_stream_t stream);
+ int _gpgrt_fseek (gpgrt_stream_t stream, long int offset, int whence);
+-int _gpgrt_fseeko (gpgrt_stream_t stream, off_t offset, int whence);
++int _gpgrt_fseeko (gpgrt_stream_t stream, gpgrt_off_t offset, int whence);
+ long int _gpgrt_ftell (gpgrt_stream_t stream);
+-off_t _gpgrt_ftello (gpgrt_stream_t stream);
++gpgrt_off_t _gpgrt_ftello (gpgrt_stream_t stream);
+ void _gpgrt_rewind (gpgrt_stream_t stream);
+ 
+ int _gpgrt_fgetc (gpgrt_stream_t stream);

contrib/src/gpg-error/rules.mak

@@ -13,6 +13,7 @@ ifdef HAVE_WIN32
 	$(APPLY) $(SRC)/gpg-error/windres-make.patch
 endif
 	$(APPLY) $(SRC)/gpg-error/missing-unistd-include.patch
+	$(APPLY) $(SRC)/gpg-error/gpgerror-android.patch
 	$(MOVE)
 	cp $@/src/syscfg/lock-obj-pub.arm-unknown-linux-androideabi.h $@/src/syscfg/lock-obj-pub.linux-android.h
 ifdef HAVE_IOS