Fixed building DMG archive on Mac OS X
diff --git a/Xcode/SDL/SDL.xcodeproj/project.pbxproj b/Xcode/SDL/SDL.xcodeproj/project.pbxproj
index 204d4e1..cdb8790 100755
--- a/Xcode/SDL/SDL.xcodeproj/project.pbxproj
+++ b/Xcode/SDL/SDL.xcodeproj/project.pbxproj
@@ -2671,7 +2671,7 @@
 			);
 			runOnlyForDeploymentPostprocessing = 0;
 			shellPath = /bin/sh;
-			shellScript = "# Sign framework\nif [ \"$SDL_CODESIGN_IDENTITY\" != \"\" ]; then\n    codesign --force --deep --sign \"$SDL_CODESIGN_IDENTITY\" $TARGET_BUILD_DIR/SDL2.framework/Versions/A\nfi\n\n# clean up the framework, remove headers, extra files\nmkdir -p build/dmg-tmp\nxcrun CpMac -r $TARGET_BUILD_DIR/SDL2.framework build/dmg-tmp/\n\ncp pkg-support/resources/License.txt build/dmg-tmp\ncp pkg-support/resources/ReadMe.txt build/dmg-tmp\n\n# remove the .DS_Store files if any (we may want to provide one in the future for fancy .dmgs)\nfind build/dmg-tmp -name .DS_Store -exec rm -f \"{}\" \\;\n\n# for fancy .dmg\nmkdir -p build/dmg-tmp/.logo\ncp pkg-support/resources/SDL_DS_Store build/dmg-tmp/.DS_Store\ncp pkg-support/sdl_logo.pdf build/dmg-tmp/.logo\n\n# create the dmg\nhdiutil create -ov -fs HFS+ -volname SDL2 -srcfolder build/dmg-tmp build/SDL2.dmg\n\n# clean up\nrm -rf build/dmg-tmp";
+			shellScript = "# Sign framework\nif [ \"$SDL_CODESIGN_IDENTITY\" != \"\" ]; then\n    codesign --force --deep --sign \"$SDL_CODESIGN_IDENTITY\" $TARGET_BUILD_DIR/SDL2.framework/Versions/A || exit $?\nfi\n\n# clean up the framework, remove headers, extra files\nmkdir -p build/dmg-tmp\ncp -r $TARGET_BUILD_DIR/SDL2.framework build/dmg-tmp/\n\ncp pkg-support/resources/License.txt build/dmg-tmp\ncp pkg-support/resources/ReadMe.txt build/dmg-tmp\n\n# remove the .DS_Store files if any (we may want to provide one in the future for fancy .dmgs)\nfind build/dmg-tmp -name .DS_Store -exec rm -f \"{}\" \\;\n\n# for fancy .dmg\nmkdir -p build/dmg-tmp/.logo\ncp pkg-support/resources/SDL_DS_Store build/dmg-tmp/.DS_Store\ncp pkg-support/sdl_logo.pdf build/dmg-tmp/.logo\n\n# create the dmg\nhdiutil create -ov -fs HFS+ -volname SDL2 -srcfolder build/dmg-tmp build/SDL2.dmg\n\n# clean up\nrm -rf build/dmg-tmp\n";
 		};
 /* End PBXShellScriptBuildPhase section */