Don't abort if swrast library is not present

GLX is enabled by default, but the current swrast behaviour causes X
to abort with fatal error if the swrast dri library dlopen fails.

Handle the case where the swrast library is not present, and do not
register the GLX extension unless at least one screen has a usable
GL provider.

1 files changed, 1 insertions, 1 deletions

diff --git a/glx/glxdriswrast.c b/glx/glxdriswrast.c
index 199f5f842..28597044f 100644
--- a/glx/glxdriswrast.c
+++ b/glx/glxdriswrast.c
@@ -515,7 +515,7 @@ __glXDRIscreenProbe(ScreenPtr pScreen)
 
     xfree(screen);
 
-    FatalError("GLX: could not load software renderer\n");
+    LogMessage(X_ERROR, "GLX: could not load software renderer\n");
 
     return NULL;
 }