[newlib-cygwin] Add missing dcrt0.cc patch to previous commit

[Corinna Vinschen <corinna at sourceware dot org>]

https://sourceware.org/git/gitweb.cgi?p=newlib-cygwin.git;h=600c44512756da11f45bd47b64f9c9cb9b6aa955

commit 600c44512756da11f45bd47b64f9c9cb9b6aa955
Author: Corinna Vinschen <corinna@vinschen.de>
Date:   Thu Dec 3 12:38:19 2015 +0100

    Add missing dcrt0.cc patch to previous commit
    
    	* dcrt0.cc (child_info_fork::alloc_stack): Don't set stackaddr to 0.
    
    Signed-off-by: Corinna Vinschen <corinna@vinschen.de>

Diff:
---
 winsup/cygwin/ChangeLog | 4 ++++
 winsup/cygwin/dcrt0.cc  | 1 -
 2 files changed, 4 insertions(+), 1 deletion(-)

diff --git a/winsup/cygwin/ChangeLog b/winsup/cygwin/ChangeLog
index a24c55e..e539b89 100644
--- a/winsup/cygwin/ChangeLog
+++ b/winsup/cygwin/ChangeLog
@@ -1,5 +1,9 @@
 2015-12-03  Corinna Vinschen  <corinna@vinschen.de>
 
+	* dcrt0.cc (child_info_fork::alloc_stack): Don't set stackaddr to 0.
+
+2015-12-03  Corinna Vinschen  <corinna@vinschen.de>
+
 	* child_info.h (struct child_info): Add member from_main.
 	* fork.cc (frok::child): Check from_main rather than stackaddr.
 	(frok::parent): Set ch.from_main if running in the main thread.
diff --git a/winsup/cygwin/dcrt0.cc b/winsup/cygwin/dcrt0.cc
index de95121..ac3360c 100644
--- a/winsup/cygwin/dcrt0.cc
+++ b/winsup/cygwin/dcrt0.cc
@@ -486,7 +486,6 @@ child_info_fork::alloc_stack ()
 		       guardpage);
 	  NtCurrentTeb()->Tib.StackLimit = stacklimit;
 	}
-      stackaddr = 0;
       /* This only affects forked children of a process started from a native
 	 64 bit process, but it doesn't hurt to do it unconditionally.  Fix
 	 StackBase in the child to be the same as in the parent, so that the