Implement CMake, mostly for cross-compiling from non-Windows

[Cloudwalk9]

This is crude and required a minor code tweak to fix a case sensitivity issue.

I think you have to manually specify the toolchain (e.g. the compiler using CC and CXX environment variables or cmake cache) unless you're using the CMake extension on vscode or codium, and of course you'll need mingw.

I haven't tested the resulting binary, or the system itself on Windows for native compile.

This was done on a burst of energy in an afternoon so I can't promise that I'll return to it.

[Castor215]

Thank you for this. It builds fine but when I try to run SC4 I get the following error:

0024:err:module:import_dll Library libgcc_s_dw2-1.dll (which is needed by L"C:\\GOG\\SimCity 4 Deluxe Edition\\Plugins\\SCGL.dll") not found
0024:err:module:import_dll Library libstdc++-6.dll (which is needed by L"C:\\GOG\\SimCity 4 Deluxe Edition\\Plugins\\SCGL.dll") not found
0024:err:wgl:egl_init Failed to load libEGL.so.1: libEGL.so.1: cannot open shared object file: No such file or directory
0024:fixme:ntdll:NtQuerySystemInformation info_class SYSTEM_PERFORMANCE_INFORMATION
0024:err:opengl:null_glViewport unsupported
0024:err:opengl:null_glMatrixMode unsupported
0024:err:opengl:null_glLoadIdentity unsupported
0024:err:opengl:null_glOrtho unsupported
0024:err:opengl:null_glMatrixMode unsupported
0024:err:opengl:null_glViewport unsupported
0024:err:opengl:null_glMatrixMode unsupported
0024:err:opengl:null_glLoadIdentity unsupported
0024:err:opengl:null_glOrtho unsupported
0024:err:opengl:null_glMatrixMode unsupported

I have the libEGL1 package installed, so it's not because the libEGL package is missing. Did I build it wrong?

[Cloudwalk9]

Did I build it wrong?

@Castor215 probably not. I actually didn't personally test this but pulling in libgcc means it needs to be statically linked.

As for the libEGL part, what's your distro and GPU?

[Castor215]

As for the libEGL part, what's your distro and GPU?

I am on Debian 13 (trixie) but using WINE from the winehq repository. installing the 'nvidia-egl-icd:i386` package solved this issue.

@Castor215 probably not. I actually didn't personally test this but pulling in libgcc means it needs to be statically linked.

I built it passing -static -static-libgcc -static-libstdc++ to both CMAKE_C_FLAGS and CMAKE_CXX_FLAGS and now it doesn't open SC4 at all with the following error

0024:fixme:ntdll:NtQuerySystemInformation info_class SYSTEM_PERFORMANCE_INFORMATION
0024:fixme:dbghelp:elf_search_auxv can't find symbol in module
0124:fixme:dbghelp:elf_search_auxv can't find symbol in module

I have also tried separately passing -static-libgcc to CMAKE_C_FLAGS and -static-libstdc++ to CMAKE_CXX_FLAGS.