Fix a missed merge for idr's dispatch changes: failure to do driInitExtensions

in __driCreateNewScreen_20050727 resulted in crashing in dispatch.

1 files changed, 11 insertions, 0 deletions

diff --git a/src/mesa/drivers/dri/mach64/mach64_screen.c b/src/mesa/drivers/dri/mach64/mach64_screen.c
index 6d148d3288a..60055e5c9f8 100644
--- a/src/mesa/drivers/dri/mach64/mach64_screen.c
+++ b/src/mesa/drivers/dri/mach64/mach64_screen.c
@@ -67,6 +67,7 @@ static const GLuint __driNConfigOptions = 3;
 static const GLuint __driNConfigOptions = 2;
 #endif
 
+extern const struct dri_extension card_extensions[];
 
 static __GLcontextModes * fill_in_modes( __GLcontextModes * modes,
 					 unsigned pixel_bits, 
@@ -540,6 +541,16 @@ void * __driCreateNewScreen_20050727( __DRInativeDisplay *dpy, int scrn, __DRIsc
 					 16,
 					 0,
 					 1);
+
+      /* Calling driInitExtensions here, with a NULL context pointer, does not actually
+       * enable the extensions.  It just makes sure that all the dispatch offsets for all
+       * the extensions that *might* be enables are known.  This is needed because the
+       * dispatch offsets need to be known when _mesa_context_create is called, but we can't
+       * enable the extensions until we have a context pointer.
+       *
+       * Hello chicken.  Hello egg.  How are you two today?
+       */
+      driInitExtensions( NULL, card_extensions, GL_FALSE );
    }
 
    return (void *) psp;