[MacPorts] #38993: xorg-server, xorg-server-devel crash at "damageValidateGC"

[MacPorts]

#38993: xorg-server, xorg-server-devel crash at "damageValidateGC"
--------------------------------+------------------------
  Reporter:  kurtjaeke@…        |      Owner:  jeremyhu@…
      Type:  defect             |     Status:  new
  Priority:  Normal             |  Milestone:
 Component:  ports              |    Version:  2.1.3
Resolution:                     |   Keywords:
      Port:  xorg-server-devel  |
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Comment (by kurtjaeke@…):

 I played a little with "git bisect".

 Upstream commit 4dc2a76740d921c824a4d8193f39dd373475f02a
 ("http://cgit.freedesktop.org/xorg/xserver/commit/?id=4dc2a76740d921c824a4d8193f39dd373475f02a")
 causes the problems I see. '''Reverting''' the following part of the first
 hunk makes this issue go away for me:
 {{{
 diff --git a/miext/damage/damage.c b/miext/damage/damage.c
 index 2d2b422..a98c20e 100644
 --- a/miext/damage/damage.c
 +++ b/miext/damage/damage.c
 @@ -436,9 +436,13 @@ damageCreateGC(GCPtr pGC)
 static void
 damageValidateGC(GCPtr pGC, unsigned long changes, DrawablePtr pDrawable)
 {
 DAMAGE_GC_FUNC_PROLOGUE(pGC);
 (*pGC->funcs->ValidateGC) (pGC, changes, pDrawable);
 - pGCPriv->ops = pGC->ops; /* just so it's not NULL */
 + if (pDamage)
 + pGCPriv->ops = pGC->ops; /* so it's not NULL, so FUNC_EPILOGUE does work
 */
 + else
 + pGCPriv->ops = NULL;
 DAMAGE_GC_FUNC_EPILOGUE(pGC);
 }
 }}}
 This is where my investigation stops.

 What's next?

-- 
Ticket URL: <https://trac.macports.org/ticket/38993#comment:7>
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