Swears at the lines in the gl.h file?

Question

Windows

286 errors like this:
Severity Code Description Project File String Suppression status Suppression status
Error C2144 syntax error: ";" is required before "void" C:\Program Files (x86)\Windows Kits\10\Include\10.0.18362.0\um\GL\gl.h 1157
and the line itself:
WINGDIAPI void APIENTRY glAccum (GLenum op, GLfloat value);

Answer 1

forgot to attach Windows.h first