Prefer tail calls.

* lib-src/ebrowse.c (xstrdup):
* lib-src/etags.c (savenstr):
* lwlib/lwlib.c (safe_strdup):
* src/xfns.c (xic_create_fontsetname):
* src/xrdb.c (gethomedir): Prefer tail calls.
* lib-src/etags.c (concat): Omit unnecessary assignment.

3 files changed, 7 insertions, 4 deletions

diff --git a/src/ChangeLog b/src/ChangeLog
index 08bbe9e69d2..3861449cf5a 100644
--- a/src/ChangeLog
+++ b/src/ChangeLog
@@ -1,3 +1,8 @@
+2013-11-14  Paul Eggert  <eggert@cs.ucla.edu>
+
+        * xfns.c (xic_create_fontsetname):
+        * xrdb.c (gethomedir): Prefer tail calls.
+
 2013-11-12  Paul Eggert  <eggert@cs.ucla.edu>
 
         * xterm.c (syms_of_xterm): staticpro Qmodifier_value, Qalt, Qhyper,
diff --git a/src/xfns.c b/src/xfns.c
index 42e7c2eeec5..46f377042f6 100644
--- a/src/xfns.c
+++ b/src/xfns.c
@@ -1750,7 +1750,7 @@ xic_create_fontsetname (const char *base_fontname, int motif)
         }
     }
   if (motif)
-    strcat (fontsetname, ":");
+    return strcat (fontsetname, ":");
   return fontsetname;
 }
 #endif /* HAVE_X_WINDOWS && USE_X_TOOLKIT */
diff --git a/src/xrdb.c b/src/xrdb.c
index 52988f0818a..ea823b2b313 100644
--- a/src/xrdb.c
+++ b/src/xrdb.c
@@ -234,9 +234,7 @@ gethomedir (void)
 
   copy = xmalloc (strlen (ptr) + 2);
   strcpy (copy, ptr);
-  strcat (copy, "/");
-
-  return copy;
+  return strcat (copy, "/");
 }