Unable to build C output on Windows gcc

[pkhead]

I have compiled some code from Haxe to C, but I am unable to build it on Windows using gcc. I am using gcc installed from MSYS2's mingw-w64-x86_64-gcc package.

This is my test code:

class Main {
    static function main() {
        trace("Hello, world!");
    }
}

This is my build.hxml:

--class-path src
--main Main
--hl out/hlc/main.c

And this is the error I get:

gcc -std=c11 -c out/hlc/main.c -o out/bin/test.o -I out/hlc -I/c/Users/nabca/Documents/src/hashlink/x64/Debug/../../src
In file included from out/hlc/main.c:6:
C:/Users/nabca/Documents/src/hashlink/src/hlc_main.c: In function 'WinMain':
C:/Users/nabca/Documents/src/hashlink/src/hlc_main.c:133:16: error: implicit declaration of function 'wmain' [-Wimplicit-function-declaration]
  133 |         return wmain(__argc, __argv);
      |                ^~~~~

I did notice that if I modify hlc_main.c so that the WinMain and wWinMain functions are defined after wmain and main, as well as change the parameters of wmain to int argc, char *argv[] instead of int argc, uchar *argv[], the code will be able to compile successfully.