c++ - 'GLEWContext does not name a type' error on ubuntu -

i trying port glew_mx project windows ubuntu errors because of glewcontext being undefined.

error: ‘glewcontext’ not name type 

i know dont need glewcontext on linux nevertheless have define

glewcontext* glewgetcontext(); 

in order compile project. created global glewcontext , return in glewgetcontext.
window.h code looks this:

#pragma once #define glew_mx #define glew_static #include "gl/glew.h" #include "glfw/glfw3.h" #define glm_swizzle #include "glm/glm.hpp" #include "glm/ext.hpp"  #ifdef _win32 #define context_prefix  window #else #define context_prefix  #endif  namespace window {     class window     {     public:            window() {}         ~window() {}          //...  #ifdef _win32         static void makecontextcurrent(window* window_handle); #endif         static window* createwindow(int win_width, int win_height, const std::string& title, glfwmonitor* monitor, window* share);          glfwwindow* window; #ifdef _win32         glewcontext* glew_context; #endif         //...      private:         //...     };      glewcontext* glewgetcontext(); #ifdef _win32     //... #else     glewcontext* glew_context; #endif } 

and code in window.cpp looks this:

#ifdef _win32 glewcontext* window::glewgetcontext() {     //... } #else glewcontext* window::glewgetcontext() {     return glew_context; } #endif 

the error occurs while compiling last 2 lines in window.h many

it seems compiler compiles windowclass , gets glewcontext* glew_context line. glewcontext may not defined, forward declaration might helpful.

since porting windows ubuntu have sure #pragma supported compiler. may change include guard

#ifndef window_h #define window_h // code here #endif