clang: warning: no such sysroot directory: '/Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX10.8.sdk' In file included from /Users/andy/Documents/workspace/openttd/src/3rdparty/squirrel/squirrel/sqclass.cpp:5: In file included from /Users/andy/Documents/workspace/openttd/src/3rdparty/squirrel/squirrel/../../../stdafx.h:16: /Users/andy/Documents/workspace/openttd/src/3rdparty/squirrel/squirrel/../../../os/macosx/osx_stdafx.h:57:3: error: "Compiling 64 bits without _SQ64 set! (or vice versa)" # error "Compiling 64 bits without _SQ64 set! (or vice versa)" ^ /Users/andy/Documents/workspace/openttd/src/3rdparty/squirrel/squirrel/../../../os/macosx/osx_stdafx.h:60:10: fatal error: 'AvailabilityMacros.h' file not found #include ^ clang: warning: no such sysroot directory: '/Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX10.8.sdk' In file included from /Users/andy/Documents/workspace/openttd/src/3rdparty/squirrel/squirrel/sqbaselib.cpp:7: In file included from /Users/andy/Documents/workspace/openttd/src/3rdparty/squirrel/squirrel/../../../stdafx.h:16: /Users/andy/Documents/workspace/openttd/src/3rdparty/squirrel/squirrel/../../../os/macosx/osx_stdafx.h:57:3: error: "Compiling 64 bits without _SQ64 set! (or vice versa)" # error "Compiling 64 bits without _SQ64 set! (or vice versa)" ^ /Users/andy/Documents/workspace/openttd/src/3rdparty/squirrel/squirrel/../../../os/macosx/osx_stdafx.h:60:10: fatal error: 'AvailabilityMacros.h' file not found #include ^ 2 errors generated. make[1]: *** [3rdparty/squirrel/squirrel/sqclass.o] Error 1 2 errors generated. make[1]: *** [3rdparty/squirrel/squirrel/sqapi.o] Error 1 2 errors generated. make[1]: *** [3rdparty/squirrel/squirrel/sqbaselib.o] Error 1 make: *** [all] Error 1