we do this in stdint.h and some other headers:
#ifndef uint32_t
typedef __uint32_t uint32_t;
#define uint32_t __uint32_t
#endif
then, if a package does something like this:
#include <stdint.h>
#define function(name, type) int name##_##type() { return 3; }
#define useless_wrapper(name, type) function(name, type)
useless_wrapper(something, uint32_t)
int main() {
return something_uint32_t();
}
It doesn't work, because we define something___uint32_t as a function.
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.
