mesa: upstream patch for gxl

x11/mesa/Portfile

@@ -62,6 +62,9 @@ patchfiles              patch-meson-spec-python.diff \
                         patch-fix-32-bit.diff \
                         patch-meson.build.diff
 
+# Upstream patch: https://gitlab.freedesktop.org/mesa/mesa/-/issues/12317
+patchfiles-append       patch-glx.diff
+
 # MP ticket 66269
 # the sizes of int and GLint are different on 10.4 PPC, at least
 # not sure how many systems this might affect, but all systems on buildbot were OK

x11/mesa/files/patch-glx.diff

@@ -0,0 +1,34 @@
+diff --git a/src/glx/glxext.c b/src/glx/glxext.c
+index 8d7518e1f47868df6f4ff413e0ab2e8a24ce5a67..98e21a21b43621914d38e853cce6befd312a8131 100644
+--- src/glx/glxext.c
++++ src/glx/glxext.c
+@@ -790,6 +790,7 @@ bind_extensions(struct glx_screen *psc, const char *driverName)
+       __glXEnableDirectExtension(psc, "GLX_INTEL_swap_event");
+    }
+
++#if defined(GLX_DIRECT_RENDERING) && (!defined(GLX_USE_APPLEGL) || defined(GLX_USE_APPLE))
+    mask = driGetAPIMask(psc->frontend_screen);
+
+    __glXEnableDirectExtension(psc, "GLX_ARB_create_context");
+@@ -846,6 +847,7 @@ bind_extensions(struct glx_screen *psc, const char *driverName)
+          psc->keep_native_window_glx_drawable = keep_native_window_glx_drawable;
+       }
+    }
++#endif
+ }
+
+
+@@ -1078,6 +1080,13 @@ __glXInitialize(Display * dpy)
+    glx_driver |= GLX_DRIVER_SW;
+ #endif
+
++#if defined(GLX_USE_APPLEGL) && !defined(GLX_USE_APPLE)
++   if (!applegl_create_display(dpyPriv)) {
++      free(dpyPriv);
++      return NULL;
++   }
++#endif
++
+    if (!AllocAndFetchScreenConfigs(dpy, dpyPriv, glx_driver, !env)) {
+       Bool fail = True;
+ #if defined(GLX_DIRECT_RENDERING) && (!defined(GLX_USE_APPLEGL) || defined(GLX_USE_APPLE))