[bpt/emacs.git] / src / prefix-args.c

/* prefix-args.c - echo each argument, prefixed by a string.
   Copyright (C) 1992, 2001, 2002, 2003, 2004, 2005,
                 2006, 2007, 2008  Free Software Foundation, Inc.

This file is part of GNU Emacs.

GNU Emacs 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 3, or (at your option)
any later version.

GNU Emacs 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 GNU Emacs; see the file COPYING.  If not, write to
the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
Boston, MA 02110-1301, USA.  */

/* Jim Blandy <jimb@occs.cs.oberlin.edu> - September 1992

   When using GCC 2 as the linker in the build process, options
   intended for the linker need to be prefixed with the "-Xlinker"
   option.  If an option takes an argument, we need to use -Xlinker
   twice - once for the option and once for its argument.  For
   example, to run the linker with the options "-Bstatic" "-e"
   "_start", you'd need to pass the following options to GCC:

   -Xlinker -Bstatic -Xlinker -e -Xlinker _start.

   The Emacs makefile used to use a Bourne Shell `for' loop to prefix
   each linker option with "-Xlinker", but 1) the for loop was hairier
   than one might hope because it had to work when there were no
   arguments to pass to the linker - the shell barfs on a loop like
   this:

       for arg in ; do echo -Xlinker "$arg"; done

   and 2) the whole compilation command containing this loop seems to
   exit with a non-zero status and halt the build under Ultrix.

   If I can't write a completely portable program to do this in C,
   I'm quitting and taking up gardening.  */

#ifdef HAVE_CONFIG_H
# include <config.h>
#endif

#if STDC_HEADERS
# include <stdlib.h>		/* for proper declaration of `exit' */
#endif

#include <stdio.h>
#include <stdlib.h>

int
main (argc, argv)
     int argc;
     char **argv;
{
  char *progname;
  char *prefix;

  progname = argv[0];
  argc--, argv++;

  if (argc < 1)
    {
      fprintf (stderr, "Usage: %s PREFIX ARGS...\n\
Echo each ARG preceded by PREFIX and a space.\n", progname);
      exit (2);
    }

  prefix = argv[0];
  argc--, argv++;

  for (; argc > 0; argc--, argv++)
    printf ("%s %s%c", prefix, argv[0], (argc > 1) ? ' ' : '\n');

  exit (0);
}

/* arch-tag: 08136d70-e5c0-49c7-bcd8-b4850233977a
   (do not change this comment) */
Commit	Line	Data
5303ab61	1	/* prefix-args.c - echo each argument, prefixed by a string.
429ab54e	2	Copyright (C) 1992, 2001, 2002, 2003, 2004, 2005,
8cabe764	3	2006, 2007, 2008 Free Software Foundation, Inc.
851e6368 RS	4
	5	This file is part of GNU Emacs.
	6
	7	GNU Emacs is free software; you can redistribute it and/or modify
	8	it under the terms of the GNU General Public License as published by
684d6f5b	9	the Free Software Foundation; either version 3, or (at your option)
851e6368 RS	10	any later version.
	11
	12	GNU Emacs is distributed in the hope that it will be useful,
	13	but WITHOUT ANY WARRANTY; without even the implied warranty of
	14	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
	15	GNU General Public License for more details.
	16
	17	You should have received a copy of the GNU General Public License
	18	along with GNU Emacs; see the file COPYING. If not, write to
4fc5845f LK	19	the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
4fc5845f LK	20	Boston, MA 02110-1301, USA. */
851e6368 RS	21
851e6368 RS	22	/* Jim Blandy <jimb@occs.cs.oberlin.edu> - September 1992
5303ab61 RS	23
	24	When using GCC 2 as the linker in the build process, options
	25	intended for the linker need to be prefixed with the "-Xlinker"
	26	option. If an option takes an argument, we need to use -Xlinker
	27	twice - once for the option and once for its argument. For
	28	example, to run the linker with the options "-Bstatic" "-e"
	29	"_start", you'd need to pass the following options to GCC:
	30
	31	-Xlinker -Bstatic -Xlinker -e -Xlinker _start.
	32
	33	The Emacs makefile used to use a Bourne Shell `for' loop to prefix
	34	each linker option with "-Xlinker", but 1) the for loop was hairier
	35	than one might hope because it had to work when there were no
	36	arguments to pass to the linker - the shell barfs on a loop like
	37	this:
	38
	39	for arg in ; do echo -Xlinker "$arg"; done
	40
	41	and 2) the whole compilation command containing this loop seems to
	42	exit with a non-zero status and halt the build under Ultrix.
	43
	44	If I can't write a completely portable program to do this in C,
	45	I'm quitting and taking up gardening. */
	46
28440f28 EZ	47	#ifdef HAVE_CONFIG_H
	48	# include <config.h>
	49	#endif
	50
	51	#if STDC_HEADERS
	52	# include <stdlib.h> /* for proper declaration of `exit' */
	53	#endif
	54
5303ab61	55	#include <stdio.h>
7e59217d	56	#include <stdlib.h>
5303ab61	57
dfcf069d	58	int
5303ab61 RS	59	main (argc, argv)
	60	int argc;
	61	char **argv;
	62	{
	63	char *progname;
	64	char *prefix;
	65
	66	progname = argv[0];
	67	argc--, argv++;
	68
	69	if (argc < 1)
	70	{
	71	fprintf (stderr, "Usage: %s PREFIX ARGS...\n\
	72	Echo each ARG preceded by PREFIX and a space.\n", progname);
	73	exit (2);
	74	}
	75
	76	prefix = argv[0];
	77	argc--, argv++;
	78
	79	for (; argc > 0; argc--, argv++)
	80	printf ("%s %s%c", prefix, argv[0], (argc > 1) ? ' ' : '\n');
	81
	82	exit (0);
	83	}
ab5796a9 MB	84
	85	/* arch-tag: 08136d70-e5c0-49c7-bcd8-b4850233977a
	86	(do not change this comment) */