Commit d42c0f1dc5063d50a62817b63a1c2a4507c46071 added an OS X-specific method of calling mpd_main_after_fork(), which uses Grand Central Dispatch. Since this uses a block literal, it breaks compilation on compilers which don't support the block extension, e.g. non-Apple compilers. This affects users on older OS X releases with GCD (which depend on older Clang releases, or Apple GCCs, which don't support the C++11 features MPD needs); or which don't support GCD at all (10.5 and lower).
The attached patch changes the #ifdef so that the non-GCD code is used as it was on OS X before this patch if blocks aren't available, via checking __BLOCKS__ macro. Best, Misty
0001-Main-guard-Apple-specific-code-with-__BLOCKS__.patch
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