OpenGL hello.c無法使用CMake構建

我試圖從http://www.glprogramming.com/red/chapter01.html構建hello.c示例（查找「示例1-2」）。OpenGL hello.c無法使用CMake構建

我的CMakeLists.txt如下：

cmake_minimum_required (VERSION 2.8) 
project (GLUTEX) 

find_package(OpenGL REQUIRED) 
find_package(GLUT REQUIRED) 
include_directories(${GLUT_INCLUDE_DIRS}) 
include_directories(${OpenGL_INCLUDE_DIRS}) 

add_executable (glutex glutex.c) 
target_link_libraries (glutex ${OpenGL_LIBRARIES}) 
target_link_libraries (glutex ${GLUT_LIBRARIES})

CMake的呼叫在產生所需的生成文件成功。但是當我撥打make時，遇到以下情況：

Scanning dependencies of target glutex 
[100%] Building C object CMakeFiles/glutex.dir/glutex.c.o 
Linking C executable glutex 
/usr/bin/ld: CMakeFiles/glutex.dir/glutex.c.o: undefined reference to symbol 'glOrtho' 
/usr/bin/ld: note: 'glOrtho' is defined in DSO /usr/lib64/libGL.so.1 so try adding it to the linker command line 
/usr/lib64/libGL.so.1: could not read symbols: Invalid operation 
collect2: ld returned 1 exit status 
make[2]: *** [glutex] Error 1 
make[1]: *** [CMakeFiles/glutex.dir/all] Error 2 
make: *** [all] Error 2

如何解決此問題？

來源

2012-07-13 Agnel Kurian

嘗試改變

target_link_libraries (glutex ${OpenGL_LIBRARIES})

到

target_link_libraries (glutex ${OPENGL_LIBRARIES})

來源

2012-07-13 18:25:16 sakra

感謝。那樣做了。你能解釋一下問題是什麼？ – 2012-07-13 18:52:12

@AgnelKurian CMake變量區分大小寫（命令不是）。 [FindOpenGL'的文檔（http://www.cmake.org/cmake/help/v2.8.8/cmake.html#module:FindOpenGL）列出了它設置的變量。 – Fraser 2012-07-13 18:58:00

OpenGL hello.c無法使用CMake構建

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