* fileio.c (Finsert_file_contents): Properly handle st_mtime

marker for non-existing file.

src/ChangeLog

+2012-07-03  Andreas Schwab  <schwab@linux-m68k.org>
+
+	* fileio.c (Finsert_file_contents): Properly handle st_mtime
+	marker for non-existing file.  (Bug#11852)
+
 2012-07-03  Glenn Morris  <rgm@gnu.org>
 
 	* lisp.h (Fread_file_name): Restore EXFUN (it's not a normal DEFUN

src/fileio.c

@@ -4193,7 +4193,10 @@ variable `last-coding-system-used' to the coding system actually used.  */)
 
       if (NILP (handler))
 	{
-	  current_buffer->modtime = get_stat_mtime (&st);
+	  if (st.st_mtime == -1)
+	    EMACS_SET_INVALID_TIME (current_buffer->modtime);
+	  else
+	    current_buffer->modtime = get_stat_mtime (&st);
 	  current_buffer->modtime_size = st.st_size;
 	  BVAR (current_buffer, filename) = orig_filename;
 	}