Question

我正在尝试在Linux debian上使用fltk编译mathgl。在mathgl目录中，我执行followin cmd来配置编译：

cmake -Wno-dev -D enable-hdf5=on -D enable-jpeg=on -D enable-png=on -D enable-fltk=on -D enable-qt4=on

结果是：

...................................

 `[82%] Linking CXX executable mglview

   cd    /home/sosroot/MathLib/mathgl/utils && /usr/local/bin/cmake -E    cmake_link_script CMakeFiles/mglview.dir/link.txt --verbose=1
   /usr/bin/c++   -fopenmp -O3 -DNDEBUG  -rdynamic    CMakeFiles/mglview.dir/mglview.cpp.o  -o mglview    -Wl,-rpath,/home/sosroot/MathLib/mathgl/widgets:/home/sosroot/MathLib/mathgl/src:/usr/local/HDF_Group/HDF5/1.10.5/lib: ../widgets/libmgl-fltk.so.7.5.0 /usr/local/lib/libfltk_images.a    /usr/local/lib/libfltk_forms.a /usr/local/lib/libfltk_gl.a -lGL    /usr/local/lib/libfltk.a -lSM -lICE -lX11 -lXext -lm    ../src/libmgl.so.7.5.0 -lGL -lGLU -lpng -lz -ljpeg    /usr/local/HDF_Group/HDF5/1.10.5/lib/libhdf5.so.103.1.0 -ldl -pthread    -lm  

../widgets/libmgl-fltk.so.7.5.0: undefined reference to `XftFontOpenXlfd' 
../widgets/libmgl-fltk.so.7.5.0: undefined reference to `XftListFonts'  
......................................................................

../widgets/libmgl-fltk.so.7.5.0: undefined reference to `XRenderComposite'

../widgets/libmgl-fltk.so.7.5.0: undefined reference to `XRenderQueryExtension'

../widgets/libmgl-fltk.so.7.5.0: undefined reference to `XRenderCreatePicture'

collect2: error: ld    returned 1 exit status

utils/CMakeFiles/mglview.dir/build.make:104: recipe for target 'utils/mglview' failed

make[2]: *** [utils/mglview]    Error 1

make[2]: Leaving directory '/home/sosroot/MathLib/mathgl'

CMakeFiles/Makefile2:1041: recipe for target    'utils/CMakeFiles/mglview.dir/all' failed

make[1]: ***    [utils/CMakeFiles/mglview.dir/all] Error 2

make[1]: Leaving directory    '/home/sosroot/MathLib/mathgl'

Makefile:132: recipe for target 'all'    failed

make: *** [all] Error 2`

有人可以帮我吗？

谢谢。

Answer 1

好像您缺少xwindows库。尝试将以下库添加到链接行

-lX11 -lXi -lXinerama -lXft -lXext -lsupc++ -lfontconfig -lXrender

您可能还需要添加-L来告诉链接器在哪里可以找到库。

如何在C ++中修复对...的未定义引用

1 个答案: