https://gcc.gnu.org/bugzilla/show_bug.cgi?id=61546
Ozkan Sezer <sezeroz at gmail dot com> changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |sezeroz at gmail dot com --- Comment #3 from Ozkan Sezer <sezeroz at gmail dot com> --- (In reply to Anton Baskanov from comment #2) > > why libgcc uses #define for __int64 instead of typedef? MinGW and MinGW-w64 use #define instead of a typedef, because that allows for uses like 'signed __int64' and 'unsigned __int64', i.e. __int64 isn't native to gcc.