Some already tried: http://anzwix.com/a/FreeBSD/GccAddSupportForApplesBlockExtension http://anzwix.com/a/FreeBSD/GccAddSupportForApplesBlockExten... http://gcc

Some already tried: http://anzwix.com/a/FreeBSD/GccAddSupportForApplesBlockExtension http://anzwix.com/a/FreeBSD/GccAddSupportForApplesBlockExten... http://gcc.1065356.n5.nabble.com/RFC-Apple-Blocks-extension-td981289.html http://gcc.1065356.n5.nabble.com/RFC-Apple-Blocks-extension-... I'm not aware of any attempt that successfully reached the upstream. GCC could have simply imported Apple patches if there were no licensing issues.