timezone/tzcode-fromname.patch

Index: timezone-2016b/zic.c
===================================================================
--- timezone-2016b.orig/zic.c
+++ timezone-2016b/zic.c
@@ -768,7 +768,7 @@ dolink(char const *fromfield, char const
 
 		result = link(fromname, toname);
 		if (result != 0) {
-				const char *s = fromfield;
+				const char *s = fromname;
 				const char *t;
 				char *p;
 				size_t dotdots = 0;
@@ -777,10 +777,10 @@ dolink(char const *fromfield, char const
 				do
 					 t = s;
 				while ((s = strchr(s, '/'))
-				       && ! strncmp (fromfield, tofield,
-						     ++s - fromfield));
+				       && ! strncmp (fromname, tofield,
+						     ++s - fromname));
 
-				for (s = tofield + (t - fromfield); *s; s++)
+				for (s = tofield + (t - fromname); *s; s++)
 				  dotdots += *s == '/';
 				symlinkcontents
 				  = emalloc(3 * dotdots + strlen(t) + 1);