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authorRich Felker <dalias@aerifal.cx>2011-04-27 23:41:48 -0400
committerRich Felker <dalias@aerifal.cx>2011-04-27 23:41:48 -0400
commitdef0af189871a499efdc9bc37438d8b20eb702ab (patch)
treed63aa5d2b91fd1dfc6098f41871eb582f4da5655 /arch/i386/bits/in.h
parente6bac87d0eaab116878a04874bc5b6a3496cb938 (diff)
downloadmusl-def0af189871a499efdc9bc37438d8b20eb702ab.tar.gz
use compiler builtins for variadic macros when available
this slightly cuts down on the degree musl "fights with" gcc, but more importantly, it fixes a critical bug when gcc inlines a variadic function and optimizes out the variadic arguments due to noticing that they were "not used" (by __builtin_va_arg). we leave the old code in place if __GNUC__ >= 3 is false; it seems like it might be necessary at least for tinycc support and perhaps if anyone ever gets around to fixing gcc 2.95.3 enough to make it work..
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