dfranx
c++ export is hard to compile in windows
First of all, thanks for such a cool editor!
I tried to build in msvc 2019 and got an error:
Error LNK2019 unresolved external symbol "int __cdecl invoke_main(void)" (?invoke_main@@YAHXZ
I got tired of suffering with the CMAKE config in VS and I tried to build using MSYS2 (with mingw compiler), after agonizing over there, I ended up with a similar problem
undefined reference to 'WinMain'
in the end, it was necessary to add #define SDL_MAIN_HANDLED (before #include <GL/glew.h>) to export.cpp and then it compiled!
You also need to install mingw-w64-x86_64-cmake and don't use the default cmake from msys2 (remove it and restart ) otherwise you won't get past the Could NOT find OpenGL error (missing: OPENGL_opengl_LIBRARY OPENGL_glx_LIBRARY) even if you install mingw64/mingw-w64-x86_64-mesa.
I was also able to build without any cmake this way: g++.exe -mwindows export.cpp -o export.exe -lmingw32 -lsdl2 -lopengl32 -lglu32 -lglew32
I also had to comment:
glUniform4fv(glGetUniformLocation(Image_SP, "iMouse"), 1, glm::value_ptr(shaderVariable));
because it couldn't defined shaderVariable:
error: 'shaderVariable' was not declared in this scope.
Some tips
For static build (no need lib*.dll but need put SDL2.dll and glew32.dll in exe folder):
Add in CMakeLists.txt -static by replace
target_link_libraries(ShaderProject GLEW::GLEW SDL2::SDL2)
to
target_link_libraries(ShaderProject GLEW::GLEW SDL2::SDL2 -static)
Compile without console window:
Replace in CMakeLists.txt
add_executable(ShaderProject ${SOURCES})
to
add_executable(ShaderProject WIN32 ${SOURCES})
For beginners:
cmake . && cmake --build . for configure and build by cmake
You need to install glew sdl2 glm packages via pacman -S packagename (use search via pacman -Ss packagename).
It's pretty strange you want to compile w/o cmake when cmake output is explicitly what the export generates, then complain it's hard. :-) Thanks for documenting how to do it for the curious though!
@ctrlcctrlv No, you've got it wrong. All the problems are present and with the building through cmake. I wrote without cmake as a supplement no more.