Question

我想设置OpenGL库并运行一个简单的GL程序：

#include <windows.h>
#include <Gl/glut.h>

int main()
{
    glClearColor (0.0, 0.0, 0.0, 0.0);
    glClear (GL_COLOR_BUFFER_BIT);
    glColor3f (1.0, 1.0, 1.0);
    glOrtho(0.0, 1.0, 0.0, 1.0, -1.0, 1.0);
    glBegin(GL_POLYGON);
    glVertex3f (0.25, 0.25, 0.0);
    glVertex3f (0.75, 0.25, 0.0);
    glVertex3f (0.75, 0.75, 0.0);
    glVertex3f (0.25, 0.75, 0.0);
    glEnd();
    glFlush();
    return 0;
}

我正在使用CLion构建项目，因此这里是我的CMakeLists.txt：

cmake_minimum_required(VERSION 3.1)
project(MuspellsheimR)

set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -std=c++11")

set(SOURCE_FILES main.cpp)
add_executable(MuspellsheimR ${SOURCE_FILES})

我已经下载了GLUT here并将glut.dll放入C：\ Windows \ SysWOW64（以及C：\ Windows \ System32以防万一），glut.h到C：\ MinGW \将\ GL和glut32.lib包含在C：\ MinGW \ lib中。我得到了以下输出消息：

CMakeFiles\ProjectName.dir/objects.a(main.cpp.obj): In function `glutInit_ATEXIT_HACK':
c:/mingw/include/gl/glut.h:486: undefined reference to `__glutInitWithExit@12'
CMakeFiles\ProjectName.dir/objects.a(main.cpp.obj): In function `glutCreateWindow_ATEXIT_HACK':
c:/mingw/include/gl/glut.h:503: undefined reference to `__glutCreateWindowWithExit@8'
CMakeFiles\ProjectName.dir/objects.a(main.cpp.obj): In function `glutCreateMenu_ATEXIT_HACK':
c:/mingw/include/gl/glut.h:549: undefined reference to `__glutCreateMenuWithExit@8'
CMakeFiles\ProjectName.dir/objects.a(main.cpp.obj): In function `main':
PATH/main.cpp:7: undefined reference to `glClearColor@16'
PATH/main.cpp:8: undefined reference to `glClear@4'
PATH/main.cpp:10: undefined reference to `glOrtho@48'
PATH/main.cpp:11: undefined reference to `glBegin@4'
PATH/main.cpp:12: undefined reference to `glVertex3f@12'
PATH/main.cpp:13: undefined reference to `glVertex3f@12'
PATH/main.cpp:14: undefined reference to `glVertex3f@12'
PATH/main.cpp:15: undefined reference to `glVertex3f@12'
PATH/main.cpp:16: undefined reference to `glEnd@0'
PATH/main.cpp:17: undefined reference to `glFlush@0'

Answer 1

通常，您让CMake使用find_package处理依赖项。您肯定错过了链接步骤：

project(MuspellsheimR)
find_package(OpenGL REQUIRED)
find_package(GLUT REQUIRED)
set(SOURCE_FILES main.cpp)
include_directories( ${OPENGL_INCLUDE_DIRS}  ${GLUT_INCLUDE_DIRS} )
add_executable(MuspellsheimR ${SOURCE_FILES})
target_link_libraries(MuspellsheimR ${OPENGL_LIBRARIES} ${GLUT_LIBRARY} )

无法使用MinGW编译GLUT helloworld

1 个答案: