Problem linking openGL dev libraries

OpenGL OpenGL: Basic Coding
1

I’m having trouble getting libopengl32.a to link into my program.
The compiler is finding the library and it’s not a c linkage problem afaik.

Here’s the compiler output:

d:/my_projects/cubic_mahjong/working/source/main/c++/opengl.cpp:42: undefined reference to glCreateProgram@0' d:/my_projects/cubic_mahjong/working/source/main/c++/opengl.cpp:45: undefined reference toglCreateShader@4’
d:/my_projects/cubic_mahjong/working/source/main/c++/opengl.cpp:54: undefined reference to glShaderSource@16' d:/my_projects/cubic_mahjong/working/source/main/c++/opengl.cpp:57: undefined reference toglCompileShader@4’
d:/my_projects/cubic_mahjong/working/source/main/c++/opengl.cpp:61: undefined reference to glGetShaderiv@12' d:/my_projects/cubic_mahjong/working/source/main/c++/opengl.cpp:65: undefined reference toglAttachShader@8’
d:/my_projects/cubic_mahjong/working/source/main/c++/opengl.cpp:68: undefined reference to glCreateShader@4' d:/my_projects/cubic_mahjong/working/source/main/c++/opengl.cpp:77: undefined reference toglShaderSource@16’
d:/my_projects/cubic_mahjong/working/source/main/c++/opengl.cpp:80: undefined reference to glCompileShader@4' d:/my_projects/cubic_mahjong/working/source/main/c++/opengl.cpp:84: undefined reference toglGetShaderiv@12’
d:/my_projects/cubic_mahjong/working/source/main/c++/opengl.cpp:88: undefined reference to glAttachShader@8' d:/my_projects/cubic_mahjong/working/source/main/c++/opengl.cpp:91: undefined reference toglLinkProgram@4’
d:/my_projects/cubic_mahjong/working/source/main/c++/opengl.cpp:95: undefined reference to glGetProgramiv@12' d:/my_projects/cubic_mahjong/working/source/main/c++/opengl.cpp:99: undefined reference toglGetAttribLocation@8’
d:/my_projects/cubic_mahjong/working/source/main/c++/opengl.cpp:112: undefined reference to glGenBuffers@8' d:/my_projects/cubic_mahjong/working/source/main/c++/opengl.cpp:113: undefined reference toglBindBuffer@8’
d:/my_projects/cubic_mahjong/working/source/main/c++/opengl.cpp:114: undefined reference to glBufferData@16' d:/my_projects/cubic_mahjong/working/source/main/c++/opengl.cpp:117: undefined reference toglGenBuffers@8’
d:/my_projects/cubic_mahjong/working/source/main/c++/opengl.cpp:118: undefined reference to glBindBuffer@8' d:/my_projects/cubic_mahjong/working/source/main/c++/opengl.cpp:119: undefined reference toglBufferData@16’

Thanks in advance for any help. Greatly appreciated.
Clarrie.

2

Because you’re running on Windows, you need to use an extension loader like GLEW to query and provide the OpenGL function pointers:

[ul]
[li]https://www.gamedev.net/forums/topic/637289-opengl-shaders-in-windows/
[/li][li]windows - Why does mingw give an undefined reference to `glUseProgram'? - Stack Overflow
[/li][/ul]