[m-users.] Pass options to gcc compiler

[Sean Charles (emacstheviking)]

OK, that showed me the includes for mmc, I didn't phrase the question clearly enough, my fault. What I tried to ask for is how do I know what the final set of include paths is at compile time, and what compiler does mmc use as the default?

I wrote a simple test program, which compiles, links and runs just fine:

➜  agame cat test.c
#include <stdio.h>
#include <SDL.h>

int main(int argc, char* argv[]) {
    SDL_version v;
    SDL_GetVersion(&v);
    printf("%i.%i.%i\n", v.major, v.minor, v.patch);
    return 0;
}


➜  agame gcc test.c -o test `pkg-config --cflags sdl2` `pkg-config --libs sdl2`
➜  agame ./test
2.24.1

and

➜  agame clang test.c -o test `pkg-config --cflags sdl2` `pkg-config --libs sdl2`
➜  agame ./test
2.24.1


This must mean then that the compiler used to compile he mercury generated files is either not 'gcc' or the '-I' flag has not been passed through? I am at a loss as this Makefile and the flags worked fine on my intel mac, I must have written a dozen sdl2 programs without issue.

Sean.



> On 16 Nov 2022, at 20:35, Zoltan Somogyi <zoltan.somogyi at runbox.com> wrote:
> 
> 
> 2022-11-17 07:26 GMT+11:00 "Sean Charles (emacstheviking)" <objitsu at gmail.com>:
>> Is there a way to ask the compiler to show what include paths it has when compiling the generated C code ?
> 
> --output-c-include-dir-flags
> 
> Zoltan.

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