Remove the -static-libgcc
Depending on the MinGW runtime is annoying, so currently we're using
From a casual look ages ago, there was no compelling reason why we end using the library.
- Temporary remove the static link
- List the API used by libwaffle, wflinfo, gl_basic, tests -
*-w64-mingw32-objdump -CtTor similar tool
- Try to remove the need for libgcc linking
Might need to address #64 to fully achieve this.