GLFW include path.

Former-commit-id: 1497a99701c8ebcd55ba735f0a14f28b5b93367a

shared/cmake/libigl.cmake

@@ -339,8 +339,8 @@ if(LIBIGL_WITH_OPENGL)
       set(GLFW_BUILD_DOCS OFF CACHE BOOL " " FORCE)
       set(GLFW_BUILD_INSTALL OFF CACHE BOOL " " FORCE)
       add_subdirectory(${NANOGUI_DIR}/ext/glfw glfw)
-      target_include_directories(glfw ${IGL_SCOPE} ${NANOGUI_DIR}/ext/glfw/include)
     endif()
+    target_include_directories(glfw ${IGL_SCOPE} ${NANOGUI_DIR}/ext/glfw/include)
     target_link_libraries(igl_opengl_glfw ${IGL_SCOPE} igl_opengl glfw)
   endif()