Import of pkgsrc-2016Q3

shells/tcsh/patches/patch-tc.alloc.c

@@ -0,0 +1,21 @@
+$NetBSD: patch-tc.alloc.c,v 1.1 2015/12/13 10:46:26 markd Exp $
+
+Fix gcc5 optimization issue - from upstream.
+
+--- tc.alloc.c.orig	2015-02-22 16:31:54.000000000 +0000
++++ tc.alloc.c
+@@ -348,10 +348,13 @@ calloc(size_t i, size_t j)
+ {
+ #ifndef lint
+     char *cp;
++    volatile size_t k;
+ 
+     i *= j;
+     cp = xmalloc(i);
+-    memset(cp, 0, i);
++    /* Stop gcc 5.x from optimizing malloc+memset = calloc */
++    k = i;
++    memset(cp, 0, k);
+ 
+     return ((memalign_t) cp);
+ #else