From b18b2994eff2f51588abe29c7a2209220c9ee9c5 Mon Sep 17 00:00:00 2001
From: Benjamin Franzke <benjaminfranzke@googlemail.com>
Date: Sat, 2 Jul 2011 13:45:14 +0200
Subject: [PATCH] configure: Enable st/gbm if st/egl has drm platform

NOTE: This is a candidate for the 7.11 branch.
---
 configure.ac | 12 ++++++++++--
 1 file changed, 10 insertions(+), 2 deletions(-)

diff --git a/configure.ac b/configure.ac
index 5a54370b51d..93b0b2684ff 100644
--- a/configure.ac
+++ b/configure.ac
@@ -597,9 +597,9 @@ AC_ARG_ENABLE([gallium_gbm],
     [AS_HELP_STRING([--enable-gallium-gbm],
         [enable optional gbm state tracker (not required for
          gbm support in Gallium)
-         @<:@default=disable@:>@])],
+         @<:@default=auto@:>@])],
     [enable_gallium_gbm="$enableval"],
-    [enable_gallium_gbm=no])
+    [enable_gallium_gbm=auto])
 
 # Option for Gallium drivers
 GALLIUM_DRIVERS_DEFAULT="r300,r600,swrast"
@@ -1386,6 +1386,14 @@ fi
 dnl
 dnl gbm Gallium configuration
 dnl
+if test "x$enable_gallium_gbm" = xauto; then
+    case "$enable_gbm$HAVE_ST_EGL$with_egl_platforms" in
+        yesyes*drm*)
+            enable_gallium_gbm=yes ;;
+         *)
+            enable_gallium_gbm=no ;;
+    esac
+fi
 if test "x$enable_gallium_gbm" = xyes; then
     if test "x$with_gallium_drivers" = x; then
         AC_MSG_ERROR([cannot enable gbm_gallium without Gallium])
-- 
2.30.2