iOS compilation failed with xcode 7.0

mlopes · September 17, 2015, 2:08pm

Hi,

After upgrading to Xcode 7.0, now I get this error when compiling for iOS:

clang: error: -fembed-bitcode is not supported on versions of iOS prior to 6.0

Any ideas how to fix it? I’m not really bothered about supporting iOS 6 or older, this seems to just be some default configuration.

Cheers,
Marco Lopes

singmajesty · September 17, 2015, 3:22pm

This should not be enabled if you target earlier versions of iOS:

github.com

openfl/lime/blob/74af0a61438bff28e8215ac743a3e1081dad25be/lime/tools/platforms/IOSPlatform.hx#L228


		context.ARM64 = arm64;
		context.TARGET_DEVICES = switch (project.config.getString ("ios.device", "universal")) { case "iphone": "1"; case "ipad": "2"; default: "1,2";  }
		context.DEPLOYMENT = project.config.getString ("ios.deployment", "5.1.1");
		
		if (project.config.getString ("ios.compiler") == "llvm" || project.config.getString ("ios.compiler", "clang") == "clang") {
			
			context.OBJC_ARC = true;
			
		}
		
		context.ENABLE_BITCODE = (project.config.getFloat ("ios.deployment", 5.1) >= 6);
		context.IOS_COMPILER = project.config.getString ("ios.compiler", "clang");
		context.CPP_BUILD_LIBRARY = project.config.getString ("cpp.buildLibrary", "hxcpp");
		
		var json = Json.parse (File.getContent (PathHelper.getHaxelib (new Haxelib ("hxcpp"), true) + "/haxelib.json"));
		
		if (Std.parseFloat (json.version) > 3.1) {
			
			context.CPP_LIBPREFIX = "lib";
			
		} else {

github.com

openfl/lime/blob/157d7150fba5567905e6aa6bd5445db8e09e5189/templates/iphone/PROJ.xcodeproj/project.pbxproj#L306


				VALID_ARCHS = "::VALID_ARCHS::";
				VALIDATE_PRODUCT = YES;
			};
			name = Release;
		};
		1D6058940D05DD3E006BFB54 /* Debug */ = {/* Build configuration list for PBXNativeTarget "::APP_TITLE::" */
			isa = XCBuildConfiguration;
			buildSettings = {
				ASSETCATALOG_COMPILER_APPICON_NAME = AppIcon;
				ASSETCATALOG_COMPILER_LAUNCHIMAGE_NAME = LaunchImage;
				ENABLE_BITCODE = ::if (ENABLE_BITCODE)::YES::else::NO::end::;
				FRAMEWORK_SEARCH_PATHS = (
					"$(inherited)",
					::foreach frameworkSearchPaths:: "\"::__current__::\"",
					::end::
				);
				GCC_PRECOMPILE_PREFIX_HEADER = YES;
				GCC_PREFIX_HEADER = "::APP_FILE::/::APP_FILE::-Prefix.pch";
				INFOPLIST_FILE = "::APP_FILE::/::APP_FILE::-Info.plist";
				"LIBRARY_SEARCH_PATHS[arch=arm64]" = (
					"$(inherited)",

Actually, maybe it is set on Debug, but not Release EDIT: No, it appears to be set for both. Hmm

mlopes · September 17, 2015, 3:35pm

I don’t mind targeting only more recent versions of iOS, how can I change that?

Cheers,
Marco Lopes

singmajesty · September 17, 2015, 4:00pm

Try adding <config:ios deployment="6.0" /> to your project.xml

mlopes · September 17, 2015, 4:29pm

Tried it, and it solved that problem, but now I’m having a different problem:

Ld build/StarMiner.build/Release-iphoneos/StarMiner.build/Objects-normal/arm64/StarMiner normal arm64
cd /Users/mlopes/projects/Personal/StarMiner/Export/ios
export IPHONEOS_DEPLOYMENT_TARGET=6.0
export PATH="/Applications/Xcode.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/usr/bin:/Applications/Xcode.app/Contents/Developer/usr/bin:/Users/mlopes/.xmonad/bin:/usr/local/bin:/home/mlopes/.gem/ruby/2.1.0/bin:/usr/local/bin:/usr/bin:/bin:/usr/sbin:/sbin:/opt/X11/bin"
/Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/clang++ -arch arm64 -isysroot /Applications/Xcode.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS9.0.sdk -L/Users/mlopes/projects/Personal/StarMiner/Export/ios/build/Release-iphoneos -L/Users/mlopes/projects/Personal/StarMiner/Export/ios/StarMiner/lib/arm64 -F/Users/mlopes/projects/Personal/StarMiner/Export/ios/build/Release-iphoneos -F/Applications/Xcode.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS9.0.sdk/System/Library/Frameworks -filelist /Users/mlopes/projects/Personal/StarMiner/Export/ios/build/StarMiner.build/Release-iphoneos/StarMiner.build/Objects-normal/arm64/StarMiner.LinkFileList -miphoneos-version-min=6.0 -dead_strip -fembed-bitcode-marker -lstd -lregexp -llime -lgamecenter -lApplicationMain -stdlib=libc++ -framework UIKit -framework OpenAL -framework OpenGLES -framework QuartzCore -framework CoreAudio -framework CoreGraphics -framework AudioToolbox -framework AVFoundation -framework Foundation -framework CoreMotion -framework MediaPlayer -framework GameKit -Xlinker -dependency_info -Xlinker /Users/mlopes/projects/Personal/StarMiner/Export/ios/build/StarMiner.build/Release-iphoneos/StarMiner.build/Objects-normal/arm64/StarMiner_dependency_info.dat -o /Users/mlopes/projects/Personal/StarMiner/Export/ios/build/StarMiner.build/Release-iphoneos/StarMiner.build/Objects-normal/arm64/StarMiner

ld: ‘/Users/mlopes/projects/Personal/StarMiner/Export/ios/StarMiner/lib/arm64/libgamecenter.a(93fbcbe6_ExternalInterface.o)’ does not contain bitcode. You must rebuild it with bitcode enabled (Xcode setting ENABLE_BITCODE), obtain an updated library from the vendor, or disable bitcode for this target. for architecture arm64
clang: error: linker command failed with exit code 1 (use -v to see invocation)

** BUILD FAILED **

The following build commands failed:
Ld build/StarMiner.build/Release-iphoneos/StarMiner.build/Objects-normal/arm64/StarMiner normal arm64

EDIT: I’ve just noticed that the problem seems to be with the Gamecenter library, which seems to be pre-compiled. How can I compile it locally?

I tried running lime rebuild extension-gamecenter ios which didn’t fail, but when I try openfl test ios it fails with the same error.

singmajesty · September 17, 2015, 7:08pm

Perhaps we should try and fix the ENABLE_BITCODE=No case first. I noticed that in the pbxproj there were a couple “Debug” and “Release” project configuration settings, on “native” and one not. Perhaps we need to set this on both sets, and not just the “native” one? (you’ll get what I mean, I think, if you search the source for the templates/iphone/PROJ.xcodeproj)

Then if we can get it to disable, that should get you running, but as for the “enable” setting, we’ll have to look at how to manually compile something with clang for “enable bitcode” and add this to HXCPP’s toolchain files?

mlopes · September 18, 2015, 8:51am

Is this in the OpenFL source code? There doesn’t seem to be a folder iphone inside templates:

Also I couldn’t find the file anywhere in OpenFL or in the Exports folder (using find ./ -iname "PROJ.xcodeproj" and find ./ -iname "*xcodeproj").

About the “enable” setting, I guess it depends on why this is happening, I assumed that this is some change that Apple made to the way Xcode 7.x works, and that it will affect everyone who upgrades their xcode, in which case it would be good to have a simple way to address it. But I can’t be sure that this is not something specific of my local system.

singmajesty · September 18, 2015, 4:06pm

Oh, sorry, it’s in the Lime /templates folder

mlopes · September 18, 2015, 7:04pm

Ok, tried adding ENABLE_BITCODE = NO; to all the buildSettings on the templates/iphone/PROJ.xcodeproj/project.pbxproj file, but it still shows the same error. Sorry if I’m being thick here, but I don’t really have a lot of experience with Xcode or iOS development, this being my first attempt at an iOS project.

singmajesty · September 18, 2015, 7:07pm

Another way to try and fix this:

1.) Create a new project and open it in Xcode. Copy the generated *.xcodeproj somewhere to keep as a backup

2.) Try and make the edits needed in the Xcode UI to get the warning to go away

3.) Compare the two files using a “diff” tool to see what Xcode changed in order to disable bitcode generation

mlopes · September 19, 2015, 9:33am

After doing that, I’ve managed to compile from xcode, I’m now trying to find which changes are relevant to add to the template file, without much success so far.
So for now, I can compile, if I go to xcode and disable bitcode every time I re-run openfl.

Here’s the diff, maybe it will help someone finding out what I’m missing there:

gist.github.com

https://gist.github.com/mlopes/16061a58ff6b9c93392c

gistfile1.diff

0,11c10,11
< 		1E2E17AD131E8B5D0048F3C7 /* StarMiner/assets in Resources */ = {isa = PBXBuildFile; fileRef = 1E2E17A5131E8B5D0048F3C7 /* Data */; };
< 		1EF0A83B121ADB8E003F2F59 /* StarMiner/haxe/build in Sources */ = {isa = PBXBuildFile; fileRef = 1E2E17A5141E8B5D0048F3C7 /* haxe */; };
---
> 		11C000000000001800000000 /* GameKit.framework in Frameworks */ = {isa = PBXBuildFile; fileRef = 11C000000000001800000001 /* GameKit.framework */; };
> 		1E2E17AD131E8B5D0048F3C7 /* StarMiner/assets in Resources */ = {isa = PBXBuildFile; fileRef = 1E2E17A5131E8B5D0048F3C7 /* StarMiner/assets */; };
25,27d24
< 				11C000000000001800000000 /* GameKit.framework in Frameworks */ = {isa = PBXBuildFile; fileRef = 11C000000000001800000001 /* GameKit.framework */; };
<
<

This file has been truncated. show original

player_03 · September 20, 2015, 10:40am

Try these steps to get better information.

mlopes · September 21, 2015, 8:25am

Thanks, that helped, I’ve modified the template file and it now compiles.

singmajesty · September 21, 2015, 4:12pm

Let me know of any changes we should make to the default template

singmajesty · September 21, 2015, 5:30pm

Hmm, Xcode here updated to 7.0, and it seems to be building fine without more edits

mlopes · September 21, 2015, 6:11pm

I just got the changes from the dev branch, I don’t think there’s a need to make any changes.