旧的OPENGL代码，想要使用glPushMatrix()

Question

第一个问题！

我正在尝试编译一些使用openGL ()的glPushMatrix代码。

我计划将代码重新格式化为更新的实践(因为不推荐glPushMatrix )，但现在，我想使用一个版本(openGL、GLU、GLUT)。这个函数工作的地方。

我当前的cmake文件如下

#CMakeLists.txt
cmake_minimum_required (VERSION 2.6)
project (PROJECTOR)



set( PROJECTOR_VERSION_MAJOR 0)
set( PROJECTOR_VERSION_MINOR 1)

add_executable( Projector.run /*...buncha files */  )

find_package(Boost) 
include_directories(${Boost_INCLUDE_DIRS})

find_package(ImageMagick COMPONENTS Magick++)
include_directories(${ImageMagick_INCLUDE_DIRS})

# TODO - this doesn't rollback versions. It just sets a min version requirement.
#           I'd like to roll back the versions.
find_package(OpenGL 2.0)
include_directories(${OpenGL_INCLUDE_DIRS})

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

find_package(GLU)
include_directories(${GLUE_INCLUDE_DIRS})

target_link_libraries(Projector.run ${ImageMagick_LIBRARIES})
target_link_libraries(Projector.run ${Boost_LIBRARIES})
target_link_libraries(Projector.run ${GLU_LIBRARIES})
target_link_libraries(Projector.run ${OpenGL_LIBRARIES})
target_link_libraries(Projector.run ${GLUT_LIBRARIES})
#

这是错误输出

/usr/bin/ld: CMakeFiles/Projector.run.dir/open_image.cpp.o: undefined reference to symbol 'glPushMatrix'
//usr/lib/x86_64-linux-gnu/mesa/libGL.so.1: error adding symbols: DSO missing from command line
collect2: error: ld returned 1 exit status
make[2]: *** [Projector.run] Error 1
make[1]: *** [CMakeFiles/Projector.run.dir/all] Error 2
make: *** [all] Error 2

这是一个代码片段

...
glPushMatrix();

    int img_height,img_width = 3;
    int row,col = 0;


    for(col = 0; col < img_height; col++ )
    {
        for(row = 0; row < img_width; row++){

            glTranslatef(CUBE_DIMEN,0.0f,0.0f);
            glColor3f(r_comp,g_comp,b_comp);
            glutSolidCube(CUBE_DIMEN);

        }

        glTranslatef(-1 * img_width * CUBE_DIMEN, -CUBE_DIMEN, 0.0f);

    }   

    glPopMatrix();
...

我应该添加什么来构建我的程序？

Answer 1

使用-lGL标志编译以包含库：

g++ -o main main.cpp -Wall -std=c++11 -lglut -lGL