Check lf_printf for type correctness

sim/ppc/ChangeLog

@@ -1,5 +1,10 @@
 Fri Nov 24 11:24:34 1995  Michael Meissner  <meissner@tiktok.cygnus.com>
 
+	* lf.h (__attribute__): If not GCC and at least 2.7.0, define as
+	nothing.
+ 	(lf_printf): Add printf __attribute__, so the compiler will
+	automatically check the format string.
+
 	* configure{,.in} (--enable-sim-icache): If argument is define,
 	add -R to flags passed to igen.
 

sim/ppc/lf.h

@@ -0,0 +1,90 @@
+/*  This file is part of the program psim.
+
+    Copyright (C) 1994-1995, Andrew Cagney <cagney@highland.com.au>
+
+    This program is free software; you can redistribute it and/or modify
+    it under the terms of the GNU General Public License as published by
+    the Free Software Foundation; either version 2 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU General Public License for more details.
+ 
+    You should have received a copy of the GNU General Public License
+    along with this program; if not, write to the Free Software
+    Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+ 
+    */
+
+
+/* LF: Line Numbered Output Stream */
+
+typedef struct _lf lf;
+
+
+#if !defined (__attribute__) && (!defined(__GNUC__) || __GNUC__ < 2 || (__GNUC__ == 2 && __GNUC_MINOR__ < 7))
+#define __attribute__(arg)
+#endif
+
+/* Open the file NAME for writing.  REAL_NAME is to be included in any
+   line number outputs.  The output of line number information can be
+   suppressed with LINE_NUMBERS */
+extern lf *lf_open
+(char *name,
+ char *real_name,
+ int number_lines);
+
+extern void lf_close
+(lf *file);
+
+
+/* Suppress indentation for the next new line (current if not yet
+   started) */
+extern void lf_indent_suppress
+(lf *file);
+
+extern void lf_putchr
+(lf *file,
+ const char ch);
+
+extern void lf_putstr
+(lf *file,
+ const char *string);
+
+extern void lf_putint
+(lf *file,
+ int decimal);
+
+extern void lf_printf
+(lf *file,
+ const char *fmt,
+ ...) __attribute__((format(printf, 2, 3)));
+
+extern void lf_print_lf_c_line_nr
+(lf *file);
+
+extern void lf_indent
+(lf *file,
+ int delta);
+
+extern void lf_print_copyleft
+(lf *file);
+
+extern void lf_print_binary
+(lf *file,
+ int decimal,
+ int width);
+
+/* it is assumed that each line of code is prefixed by a tab character
+   that should be suppressed */
+extern void lf_print_c_code
+(lf *file,
+ char *code);
+
+
+extern void lf_print_c_line_nr
+(lf *file,
+ int line_nr,
+ char *file_name);