# HG changeset patch
# User Gorka Guardiola <paurea@gmail.com>
# Date 1328645063 0
# Node ID 4f9ba294341fda521a87451439be74904e1158c2
# Parent  22d00b9e0529e4494a66bc39a379448ac2f45150
execac: free the core on failure with some extra arm twisting to the compiler

R=nixiedev, john, nemo
CC=nix-dev
http://codereview.appspot.com/5609050

Committer: John Floren <john@jfloren.net>

diff -r 22d00b9e0529 -r 4f9ba294341f sys/src/nix/port/sysproc.c
--- a/sys/src/nix/port/sysproc.c	Tue Feb 07 18:33:52 2012 +0000
+++ b/sys/src/nix/port/sysproc.c	Tue Feb 07 20:04:23 2012 +0000
@@ -336,8 +336,15 @@
 		nexterror();
 	}
 
-	if(core != 0)
+	if(core != 0){
 		up->ac = getac(up, core);
+		mp = up->ac;
+		/*
+		 * This variable is not used later, so take the address
+		 * to make it go to memory for the waserror.
+		 */
+		USED(&mp);
+	}
 
 	argc = 0;
 	file = validnamedup(ufile, 1);