diff --git a/configure.ac b/configure.ac
index 0cd304c09..35f1f1650 100644
--- a/configure.ac
+++ b/configure.ac
@@ -1403,6 +1403,8 @@ AC_SUBST(HAVE_SGL)
 AC_SUBST(HAVE_SVGA)
 AC_SUBST(HAVE_X)
 
+AC_DEFINE(HAVE_GLX)
+
 if test -n "$CL_TARGETS"; then
 	CD_TARGETS="libQFcd.la"
 	SND_TARGETS="libQFsound.la"
diff --git a/libs/video/targets/qfgl_ext.c b/libs/video/targets/qfgl_ext.c
index 6964703e1..1301932f8 100644
--- a/libs/video/targets/qfgl_ext.c
+++ b/libs/video/targets/qfgl_ext.c
@@ -134,19 +134,15 @@ QFGL_ExtensionAddress (const char *name)
 #endif
 
 	if (glProcAddress_present && !glGetProcAddress) {
-		if (QFGL_ExtensionPresent ("GLX_ARB_get_proc_address")) {
 #if defined(HAVE_GLX)
-			glGetProcAddress =
-				QFGL_ProcAddress (handle, "glXGetProcAddressARB", false);
+		glGetProcAddress =
+			QFGL_ProcAddress (handle, "glXGetProcAddressARB", false);
 #elif defined (_WIN32)
-			glGetProcAddress =
-				QFGL_ProcAddress (handle, "wglGetProcAddress", false);
+		glGetProcAddress =
+			QFGL_ProcAddress (handle, "wglGetProcAddress", false);
 #endif
-			if (!glGetProcAddress)
-				glProcAddress_present = false;
-		} else {
+		if (!glGetProcAddress)
 			glProcAddress_present = false;
-		}
 	}
 
 	if (name && glProcAddress_present)