When I wanted to use native opengl binding module main; import std.stdio; import c.gl.gl; pragma(lib,"opengl32.lib"); import c.gl.glu; pragma(lib,"glu32.lib"); int main(string[] argv) { writeln("Hello D-World!"); return 0; } DMD wrote:opengl32.lib Error 43: Not a Valid Library File But why can't dmd link it?