glx: Fix incorrect use of dri_interface.h version defines in driver probing.

If we extend __DRI_CORE or __DRI_SWRAST in dri_interface.h to allow a
new version, it shouldn't make old server code retroactively require
the new version from swrast drivers.

Notably, new Mesa defines __DRI_SWRAST version 4, but we still want to
be able to probe version 1 drivers, since we don't use any features
beyond version 1 of the struct.

Signed-off-by: Keith Packard <keithp@keithp.com>
Reviewed-by: Ian Romanick <ian.d.romanick@intel.com>

diff --git a/glx/glxdriswrast.c b/glx/glxdriswrast.c
index aa083e0..2d5efa0 100644 (file)
--- a/glx/glxdriswrast.c
+++ b/glx/glxdriswrast.c
@@ -443,9 +443,9 @@ __glXDRIscreenProbe(ScreenPtr pScreen)
 
     screen->driver = glxProbeDriver(driverName,
                                     (void **) &screen->core,
-                                    __DRI_CORE, __DRI_CORE_VERSION,
+                                    __DRI_CORE, 1,
                                     (void **) &screen->swrast,
-                                    __DRI_SWRAST, __DRI_SWRAST_VERSION);
+                                    __DRI_SWRAST, 1);
     if (screen->driver == NULL) {
         goto handle_error;
     }