编译omnetpp-5.4.1时出现以下错误，我是否需要卸载libgles2-mesa-dev软件包？
在/usr/include/GL/gl.h:2055中包含的文件中：
/usr/include/GL/glext.h:469:19: error: typedef redefinition with different types ('ptrdiff_t' (aka 'int') vs 'khronos_intptr_t' (aka 'long')) typedef ptrdiff_t GLintptr; ^ /usr/include/GLES3/gl31.h:74:26: note: previous definition is here typedef khronos_intptr_t GLintptr; ^ In file included from osgviewer.cc:27: In file included from /usr/include/arm-linux-gnueabihf/qt5/QtGui/QOpenGLFunctions:1: /usr/include/arm-linux-gnueabihf/qt5/QtGui/qopenglfunctions.h:60:16: error: cannot combine with previous 'double' declaration specifier typedef double GLdouble; ^ /usr/include/osg/GL:129:38: note: expanded from macro 'GLdouble' #define GLdouble double ^ 3 errors generated.
答案 0 :(得分：0)
这似乎是系统头文件的问题。如果不需要OpenSceneGraph / osgEarth支持，则可以在configure.user文件中将其关闭，然后重新配置/重建omnet。这将从构建过程中排除OSG特定文件。 （如果您不需要图形环境（Qtenv），甚至可以在configure.user中将其关闭，这将避免也与Qt库链接）。