Fix compilation warning in etags.c

* lib-src/etags.c (etags_mktmp) [DOS_NT]: Don't dereference a NULL
pointer.  Reported by Richard Copley <rcopley@gmail.com>.

1 files changed, 9 insertions, 7 deletions

diff --git a/lib-src/etags.c b/lib-src/etags.c
index 4000f47a414..009cba528d7 100644
--- a/lib-src/etags.c
+++ b/lib-src/etags.c
@@ -7068,14 +7068,16 @@ etags_mktmp (void)
       errno = temp_errno;
       templt = NULL;
     }
-
 #if defined (DOS_NT)
-  /* The file name will be used in shell redirection, so it needs to have
-     DOS-style backslashes, or else the Windows shell will barf.  */
-  char *p;
-  for (p = templt; *p; p++)
-    if (*p == '/')
-      *p = '\\';
+  else
+    {
+      /* The file name will be used in shell redirection, so it needs to have
+         DOS-style backslashes, or else the Windows shell will barf.  */
+      char *p;
+      for (p = templt; *p; p++)
+        if (*p == '/')
+          *p = '\\';
+    }
 #endif
 
   return templt;