On Friday, 10 October 2025 at 08:34:15 UTC, felixfxu wrote:
Hi,I'm testing dmd's _importC_ in Ubuntu 24.04, my .c/.h code has many code specific to compilers, like#ifdef __GNUC__I'm surprise to see that it seems like `__GNUC__` is defined in dmd.
Reading the https://dlang.org/spec/importc.html will help you solve the mystery. This section in particular: https://dlang.org/spec/importc.html#preprocessor
