find_package(OpenGL) only works with glvnd and hardcodes glvnd paths, even
though all these components are easily found with pkgconfig..
diff --git a/build/cmake/init.cmake b/build/cmake/init.cmake
index ef28c99..b4df830 100644
--- a/build/cmake/init.cmake
+++ b/build/cmake/init.cmake
@@ -408,17 +408,26 @@ if(wxUSE_GUI)
             set(OPENGL_FOUND TRUE)
             set(OPENGL_LIBRARIES "-framework OpenGLES" "-framework QuartzCore" "-framework GLKit")
         else()
-            find_package(OpenGL)
-            if(OPENGL_FOUND)
-                foreach(gltarget OpenGL::GL OpenGL::GLU OpenGL::OpenGL)
-                    if(TARGET ${gltarget})
-                        set(OPENGL_LIBRARIES ${gltarget} ${OPENGL_LIBRARIES})
-                    endif()
-                endforeach()
-            endif()
-            if(WXGTK3 AND OpenGL_EGL_FOUND AND wxUSE_GLCANVAS_EGL)
+            # find_package(OpenGL)
+            # if(OPENGL_FOUND)
+            #     foreach(gltarget OpenGL::GL OpenGL::GLU OpenGL::OpenGL)
+            #         if(TARGET ${gltarget})
+            #             set(OPENGL_LIBRARIES ${gltarget} ${OPENGL_LIBRARIES})
+            #         endif()
+            #     endforeach()
+            # endif()
+            find_package(PkgConfig REQUIRED)
+            pkg_check_modules(GLU REQUIRED glu IMPORTED_TARGET GLOBAL)
+            add_library(OpenGL::GLU ALIAS PkgConfig::GLU)
+            pkg_check_modules(GL REQUIRED gl IMPORTED_TARGET GLOBAL)
+            add_library(OpenGL::GL ALIAS PkgConfig::GL)
+            pkg_check_modules(EGL REQUIRED egl IMPORTED_TARGET GLOBAL)
+            add_library(OpenGL::EGL ALIAS PkgConfig::EGL)
+            set(OPENGL_FOUND TRUE)
+            set(OpenGL_EGL_FOUND TRUE)
+            if(WXGTK3 AND wxUSE_GLCANVAS_EGL)
                 if(TARGET OpenGL::EGL)
-                    set(OPENGL_LIBRARIES OpenGL::EGL ${OPENGL_LIBRARIES})
+                    set(OPENGL_LIBRARIES OpenGL::EGL ${OPENGL_LIBRARIES} GL)
                 endif()
                 set(OPENGL_INCLUDE_DIR ${OPENGL_INCLUDE_DIR} ${OPENGL_EGL_INCLUDE_DIRS})
                 find_package(WAYLANDEGL)