configure.ac: gbm_gallium requires DRI_LIB_DEPS to link

gbm_gallium does not depend on DRI, but its build rules depend on DRI_LIB_DEPS
being set.  Output an error when the user enables gbm_gallium but disables
DRI.  This is just a workaround.

diff --git a/configure.ac b/configure.ac
index 707acf3..8885a6d 100644 (file)
--- a/configure.ac
+++ b/configure.ac
@@ -1427,8 +1427,8 @@ 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*)
+    case "$enable_gbm$HAVE_ST_EGL$enable_dri$with_egl_platforms" in
+        yesyesyes*drm*)
             enable_gallium_gbm=yes ;;
          *)
             enable_gallium_gbm=no ;;
@@ -1441,6 +1441,10 @@ if test "x$enable_gallium_gbm" = xyes; then
     if test "x$enable_gbm" = xno; then
         AC_MSG_ERROR([cannot enable gbm_gallium without gbm])
     fi
+    # gbm_gallium abuses DRI_LIB_DEPS to link.  Make sure it is set.
+    if test "x$enable_dri" = xno; then
+        AC_MSG_ERROR([gbm_gallium requires --enable-dri to build])
+    fi
 
     GALLIUM_STATE_TRACKERS_DIRS="gbm $GALLIUM_STATE_TRACKERS_DIRS"
     GALLIUM_TARGET_DIRS="$GALLIUM_TARGET_DIRS gbm"