Merge remote-tracking branch 'origin/released'

* origin/released:
  mesa xkeyboard-config xserver git update 15 jan 2014
  randrproto libfontenc mesa xserver git update 10 Jan 2014
  randsrproto fontconfig libX11 git update 6 Jan 2014

Conflicts:
	mesalib/src/glsl/builtin_functions.cpp
	mesalib/src/glsl/ir_builder.h
	xorg-server/Xext/xres.c
	xorg-server/dix/dispatch.c
	xorg-server/dix/dixfonts.c
	xorg-server/hw/xwin/wingc.c
	xorg-server/hw/xwin/winwindowswm.c
	xorg-server/include/gc.h
	xorg-server/os/access.c

1 files changed, 4 insertions, 1 deletions

diff --git a/mesalib/src/mesa/state_tracker/st_cb_fbo.c b/mesalib/src/mesa/state_tracker/st_cb_fbo.c
index 70baa9965..daa94df92 100644
--- a/mesalib/src/mesa/state_tracker/st_cb_fbo.c
+++ b/mesalib/src/mesa/state_tracker/st_cb_fbo.c
@@ -680,7 +680,10 @@ st_DrawBuffers(struct gl_context *ctx, GLsizei count, const GLenum *buffers)
    /* add the renderbuffers on demand */
    for (i = 0; i < fb->_NumColorDrawBuffers; i++) {
       gl_buffer_index idx = fb->_ColorDrawBufferIndexes[i];
-      st_manager_add_color_renderbuffer(st, fb, idx);
+
+      if (idx >= 0) {
+         st_manager_add_color_renderbuffer(st, fb, idx);
+      }
    }
 }