问题
I'm getting some undefined references when building my project. Here's the build log:
**** Build of configuration Debug for project test ****
**** Internal Builder is used for build ****
g++ -O0 -g3 -Wall -c -fmessage-length=0 -o src\main.o ..\src\main.cpp
g++ -O0 -g3 -Wall -c -fmessage-length=0 -o src\test.o ..\src\test.cpp
g++ -O0 -g3 -Wall -c -fmessage-length=0 -o src\window.o ..\src\window.cpp
..\src\window.cpp: In member function 'void Window::StartRenderContext()':
..\src\window.cpp:150:24: warning: NULL used in arithmetic
..\src\window.cpp:161:28: warning: NULL used in arithmetic
..\src\window.cpp:174:24: warning: NULL used in arithmetic
g++ -mwindows -l glew32 -l glew32s -l glu32 -l opengl32 -o test.exe src\window.o src\test.o src\main.o
src\window.o: In function `ZN6Window18StartRenderContextEv':
C:\eclipse\workspace\test\Debug/../src/window.cpp:101: undefined reference to `wglCreateContext@4'
C:\eclipse\workspace\test\Debug/../src/window.cpp:102: undefined reference to `wglMakeCurrent@8'
C:\eclipse\workspace\test\Debug/../src/window.cpp:115: undefined reference to `glewInit'
C:\eclipse\workspace\test\Debug/../src/window.cpp:125: undefined reference to `wglMakeCurrent@8'
C:\eclipse\workspace\test\Debug/../src/window.cpp:126: undefined reference to `wglDeleteContext@4'
C:\eclipse\workspace\test\Debug/../src/window.cpp:148: undefined reference to `__wglewChoosePixelFormatARB'
C:\eclipse\workspace\test\Debug/../src/window.cpp:159: undefined reference to `__wglewChoosePixelFormatARB'
C:\eclipse\workspace\test\Debug/../src/window.cpp:185: undefined reference to `__wglewCreateContextAttribsARB'
C:\eclipse\workspace\test\Debug/../src/window.cpp:194: undefined reference to `__wglewCreateContextAttribsARB'
C:\eclipse\workspace\test\Debug/../src/window.cpp:204: undefined reference to `__wglewCreateContextAttribsARB'
C:\eclipse\workspace\test\Debug/../src/window.cpp:214: undefined reference to `__wglewCreateContextAttribsARB'
C:\eclipse\workspace\test\Debug/../src/window.cpp:227: undefined reference to `wglMakeCurrent@8'
collect2: ld returned 1 exit status
Build error occurred, build is stopped
Time consumed: 8128 ms.
Here's my link command:
g++ -mwindows -l glew32 -l glew32s -l glu32 -l opengl32 -o test.exe src\window.o src\test.o src\main.o
Is this correct? I'm using the 64-bit binaries of glew (I think the 32s don't mean anything). Were they only meant to be used with visual studio?
Here's the includes in my code:
#include "Windows.h"
#include "GL/glew.h"
#include "GL/wglew.h"
#include "GL/gl.h"
#include "GL/glu.h"
#include "test.h"
I am using Eclipse Indigo CDT, MinGW, Win32, OpenGL, and glew.
回答1:
I solved "glew undefined reference" problems.
My development environment is eclipse CDT with MinGW on Windows 7 (x64).
The solution is the following 3 steps:
- Add source code:
#define GLEW_STATIC - Add linker flag:
-lglew32s -lopengl32 -lfreeglut - Add compiling flag:
gcc -DGLEW_STATIC
If needed, you have to add -lglu32 -glut32 etc.
来源：https://stackoverflow.com/questions/7549594/opengl-glew-mingw-application-linking-issue