https://bugs.gentoo.org/715132
https://bugs.gentoo.org/798651
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -189,3 +189,3 @@
 	IF ( WITH_OPENGL )
-		pkg_check_modules(OPENGL REQUIRED gl>=7.5)
+		pkg_check_modules(OPENGL REQUIRED gl)
 		INCLUDE_DIRECTORIES ( ${OPENGL_INCLUDE_DIRS} )