3 files changed, 44 insertions, 24 deletions
diff --git a/src/gallium/winsys/xlib/Makefile b/src/gallium/winsys/xlib/Makefile
index c443330942..ec92c79068 100644
--- a/src/gallium/winsys/xlib/Makefile
+++ b/src/gallium/winsys/xlib/Makefile
@@ -1,5 +1,9 @@
 # src/gallium/winsys/xlib/Makefile
 
+# This makefile produces a "stand-alone" libGL.so which is based on
+# Xlib (no DRI HW acceleration)
+
+
 TOP = ../../../..
 include $(TOP)/configs/current
 
diff --git a/src/gallium/winsys/xlib/SConscript b/src/gallium/winsys/xlib/SConscript
index 218b89285f..5e98a36abc 100644
--- a/src/gallium/winsys/xlib/SConscript
+++ b/src/gallium/winsys/xlib/SConscript
@@ -3,30 +3,32 @@
 
 Import('*')
 
-env = env.Clone()
+if env['platform'] == 'linux' and 'mesa' in env['statetrackers'] and not env['dri']:
 
-env.Append(CPPPATH = [
-	'#/src/mesa',
-	'#/src/mesa/main',
-])
+	env = env.Clone()
 
-sources = [
-	'glxapi.c',
-	'fakeglx.c',
-	'xfonts.c',
-	'xm_api.c',
-	'xm_winsys.c',
-	'xm_winsys_aub.c',
-	'brw_aub.c',
-]
-	
-drivers = [
-	softpipe,
-]
+	env.Append(CPPPATH = [
+		'#/src/mesa',
+		'#/src/mesa/main',
+	])
 
-# TODO: write a wrapper function http://www.scons.org/wiki/WrapperFunctions
-env.SharedLibrary(
-	target ='GL',
-	source = sources,
-	LIBS = glapi + mesa + drivers + auxiliaries + env['LIBS'],
-)
+	sources = [
+		'glxapi.c',
+		'fakeglx.c',
+		'xfonts.c',
+		'xm_api.c',
+		'xm_winsys.c',
+		'xm_winsys_aub.c',
+		'brw_aub.c',
+	]
+		
+	drivers = [
+		softpipe,
+	]
+
+	# TODO: write a wrapper function http://www.scons.org/wiki/WrapperFunctions
+	env.SharedLibrary(
+		target ='GL',
+		source = sources,
+		LIBS = glapi + mesa + drivers + auxiliaries + env['LIBS'],
+	)
diff --git a/src/gallium/winsys/xlib/xm_api.c b/src/gallium/winsys/xlib/xm_api.c
index 26b722f343..8a32c54349 100644
--- a/src/gallium/winsys/xlib/xm_api.c
+++ b/src/gallium/winsys/xlib/xm_api.c
@@ -797,8 +797,14 @@ XMesaContext XMesaCreateContext( XMesaVisual v, XMesaContext share_list )
       pipe = xmesa_create_i965simple(xmesa_get_pipe_winsys_aub(v));
    }
 
+   if (pipe == NULL)
+      goto fail;
+
    c->st = st_create_context(pipe, &v->mesa_visual,
                              share_list ? share_list->st : NULL);
+   if (c->st == NULL)
+      goto fail;
+   
    mesaCtx = c->st->ctx;
    c->st->ctx->DriverCtx = c;
 
@@ -818,6 +824,14 @@ XMesaContext XMesaCreateContext( XMesaVisual v, XMesaContext share_list )
 #endif
 
    return c;
+
+ fail:
+   if (c->st)
+      st_destroy_context(c->st);
+   if (pipe)
+      pipe->destroy(pipe);
+   FREE(c);
+   return NULL;
 }