[BUG]can not link libopengl32.a on WINDOWS

[dangyajun]

Describe the bug

Using cmake compile glew failed

C:/msys32/mingw32/bin/../lib/gcc/i686-w64-mingw32/10.1.0/../../../../i686-w64-mi ngw32/bin/ld.exe: CMakeFiles/visualinfo.dir/objects.a(visualinfo.c.obj):visualin fo.c:(.text+0x1ee4): undefined reference to _imp__wglMakeCurrent@8' C:/msys32/mingw32/bin/../lib/gcc/i686-w64-mingw32/10.1.0/../../../../i686-w64-mi ngw32/bin/ld.exe: CMakeFiles/visualinfo.dir/objects.a(visualinfo.c.obj):visualin fo.c:(.text+0x1f29): undefined reference to_impwglMakeCurrent@8' C:/msys32/mingw32/bin/../lib/gcc/i686-w64-mingw32/10.1.0/../../../../i686-w64-mi ngw32/bin/ld.exe: CMakeFiles/visualinfo.dir/objects.a(visualinfo.c.obj):visualin fo.c:(.text+0x1f3d): undefined reference to _imp__wglGetCurrentContext@0' C:/msys32/mingw32/bin/../lib/gcc/i686-w64-mingw32/10.1.0/../../../../i686-w64-mi ngw32/bin/ld.exe: CMakeFiles/visualinfo.dir/objects.a(visualinfo.c.obj):visualin fo.c:(.text+0x1f47): undefined reference to_impwglDeleteContext@4' C:/msys32/mingw32/bin/../lib/gcc/i686-w64-mingw32/10.1.0/../../../../i686-w64-mi ngw32/bin/ld.exe: lib/libglew.a(glew.c.obj):glew.c:(.text+0x446): undefined refe rence to `_imp__wglGetProcAddress@4'

Steps to Reproduce the Problem

1. Run 'cmake ../ -G"Unix Makefiles" in build directory'
2. Catch the error

Additional Context: Operating System, Screenshots

If applicable, add screenshots to help explain your problem.

• OS: [e.g. Windows 7 Ultimate version SP1 ]
• ENV[LIBRARY_PATH] : C:\msys32\usr\lib;C:\msys32\mingw32\lib;C:\msys32\mingw32\i686-w64-mingw32\lib
• PATH of libopengl32.a is C:\msys32\mingw32\i686-w64-mingw32\lib

[Biswa96]

Possible solutions:

• Maybe you are using wrong cmake generator. Try, cmake -G "MSYS Makefiles" or cmake -G Ninja command.
• Also remove DllMainCRTStartup from glew.c in that project because it conflicts with mingw-w64 CRT.
• From the screenshot, it seems that you are using old 32bit msys2 installation. If possible try to upgrade it to 64bit msys2 installation because 32bit msys2 is deprecated.

[dangyajun]

But glew can build sucessfully by tdm-gcc without any change.

[dangyajun]

Tomorrow I will try it again with 64bit msys2.Thank you very much.