In article <20180908230813.ga22...@sdf.org>, <co...@sdf.org> wrote: >we do this in stdint.h and some other headers: > >#ifndef uint32_t >typedef __uint32_t uint32_t; >#define uint32_t __uint32_t >#endif > > >Real-world examples: >https://github.com/neovim/neovim/blob/94841e5eaebc3f2fb556056dd676afff21ff5d23/src/nvim/map.h#L12 >https://github.com/NetBSD/pkgsrc/blob/trunk/www/firefox/patches/patch-servo_components_style_build__gecko.rs > >And now I ran into: >https://cgit.freedesktop.org/mesa/mesa/tree/src/compiler/builtin_type_macros.h#n42 > >Proposal: let's not define the macros? >I don't know if there are long running consequences for it.
The problem is that these are defined in multiple headers and typedef redefinition with the same type is a c11 feature, so the define protects against that. Of course one can use a different macro and this was done before, but this has other disadvantages. christos
