GTL: drop -werror until Google upgraded their SDK for iOS 9

compileVLCforiOS.sh

@@ -145,7 +145,10 @@ cd ..
 fi
 if ! [ -e GDrive ]; then
 svn checkout http://google-api-objectivec-client.googlecode.com/svn/trunk/Source GDrive
-cd GDrive && patch -p0 < ../../patches/gdrive/upgrade-default-target.patch && cd ..
+cd GDrive
+patch -p0 < ../../patches/gdrive/upgrade-default-target.patch
+patch -p0 < ../../patches/gdrive/gtl-werror.patch
+cd ..
 cd GDrive/HTTPFetcher && patch -p0 < ../../../patches/gdrive/httpfetcher-compilation-fix.diff && cd ../..
 else
 cd GDrive && svn up && cd ..

patches/gdrive/gtl-werror.patch

@@ -0,0 +1,20 @@
+Index: GTL.xcodeproj/project.pbxproj
+===================================================================
+--- GTL.xcodeproj/project.pbxproj	(revision 451)
++++ GTL.xcodeproj/project.pbxproj	(working copy)
+@@ -1053,7 +1053,6 @@
+ 				SDKROOT = macosx;
+ 				WARNING_CFLAGS = (
+ 					"-Wall",
+-					"-Werror",
+ 					"-Wendif-labels",
+ 					"-Wnewline-eof",
+ 					"-Wfloat-equal",
+@@ -1095,7 +1094,6 @@
+ 				SDKROOT = macosx;
+ 				WARNING_CFLAGS = (
+ 					"-Wall",
+-					"-Werror",
+ 					"-Wendif-labels",
+ 					"-Wnewline-eof",
+ 					"-Wfloat-equal",