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It appears to be `_exit' in particular that is loused up. Probably because GCC thinks it knows about _exit before it's told. This test gets the warning, but with -D_exit=loser, it does not. extern void _exit (int __status) __attribute__ ((__noreturn__)); __typeof (_exit) __GI__exit; __typeof (_exit) _exit __asm__ ("" "__GI__exit") __attribute__ ((visibility ("hidden"))); extern void bar (void) __attribute__ ((noreturn)); void bar (void) { _exit (0); }
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