Undefined reference to `glXM*` when linking lib/libvtkRenderingOpenGL2-9.0.so.9.0.0
Using CMake Version 3.17.3, gcc (Ubuntu 9.3.0-10ubuntu2) 9.3.0. When building I get lots of errors like:
/usr/bin/ld: lib/libvtkRenderingOpenGL2-9.0.so.9.0.0: undefined reference to `glXMakeCurrent'
/usr/bin/ld: lib/libvtkRenderingOpenGL2-9.0.so.9.0.0: undefined reference to `glXGetVisualFromFBConfig'
/usr/bin/ld: lib/libvtkRenderingOpenGL2-9.0.so.9.0.0: undefined reference to `glXGetCurrentDisplay'
If you add the line list(APPEND opengl_targets OpenGL::GL)
just before line 30 in VTK/Utilities/OpenGL/CmakeLists.txt
everything compiles OK.
else ()
list(APPEND opengl_targets OpenGL::GL)
list(APPEND opengl_targets OpenGL::OpenGL)
endif ()
@ken-martin I'm happy to do a merge request or you can do it. You may see other issues that I don't know about!