codesign the sdl framework when copying into the app bundle

Author: jonof

xcode/game.xcodeproj/project.pbxproj

@@ -15,9 +15,9 @@
 		AB3E07660A33068500FF2442 /* startwin.editor.nib in Resources */ = {isa = PBXBuildFile; fileRef = AB3E07650A33068500FF2442 /* startwin.editor.nib */; };
 		AB3FE4680C0433D000D5DBDC /* libeditorsupp.a in Frameworks */ = {isa = PBXBuildFile; fileRef = AB3FE4580C04338D00D5DBDC /* libeditorsupp.a */; };
 		AB43D734219DAA2200718BCE /* SDL2.framework in Frameworks */ = {isa = PBXBuildFile; fileRef = AB7361220A29B9D4003261DC /* SDL2.framework */; };
-		AB43D735219DAA2200718BCE /* SDL2.framework in Embed Frameworks */ = {isa = PBXBuildFile; fileRef = AB7361220A29B9D4003261DC /* SDL2.framework */; settings = {ATTRIBUTES = (); }; };
+		AB43D735219DAA2200718BCE /* SDL2.framework in Embed Frameworks */ = {isa = PBXBuildFile; fileRef = AB7361220A29B9D4003261DC /* SDL2.framework */; settings = {ATTRIBUTES = (CodeSignOnCopy, ); }; };
 		AB43D737219DAA3300718BCE /* SDL2.framework in Frameworks */ = {isa = PBXBuildFile; fileRef = AB7361220A29B9D4003261DC /* SDL2.framework */; };
-		AB43D738219DAA3300718BCE /* SDL2.framework in Embed Frameworks */ = {isa = PBXBuildFile; fileRef = AB7361220A29B9D4003261DC /* SDL2.framework */; settings = {ATTRIBUTES = (); }; };
+		AB43D738219DAA3300718BCE /* SDL2.framework in Embed Frameworks */ = {isa = PBXBuildFile; fileRef = AB7361220A29B9D4003261DC /* SDL2.framework */; settings = {ATTRIBUTES = (CodeSignOnCopy, ); }; };
 		AB63425724305DAA002CDE1A /* names.h in Copy KenBuild game data */ = {isa = PBXBuildFile; fileRef = AB726D650F046E6E00730EAA /* names.h */; };
 		AB63426924305F35002CDE1A /* arttool in Copy additional editor tools */ = {isa = PBXBuildFile; fileRef = ABAE9AD60F0B308900A528DC /* arttool */; settings = {ATTRIBUTES = (CodeSignOnCopy, ); }; };
 		AB63426A24305F35002CDE1A /* kextract in Copy additional editor tools */ = {isa = PBXBuildFile; fileRef = ABAE9C3E0F0CC83700A528DC /* kextract */; settings = {ATTRIBUTES = (CodeSignOnCopy, ); }; };