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5303ab61 | 1 | /* prefix-args.c - echo each argument, prefixed by a string. |
9ec0b715 | 2 | Copyright (C) 1992, 2001, 2002, 2003, 2004, 2005, 2006, 2007, |
114f9c96 | 3 | 2008, 2009, 2010 Free Software Foundation, Inc. |
851e6368 RS |
4 | |
5 | This file is part of GNU Emacs. | |
6 | ||
9ec0b715 | 7 | GNU Emacs is free software: you can redistribute it and/or modify |
851e6368 | 8 | it under the terms of the GNU General Public License as published by |
9ec0b715 GM |
9 | the Free Software Foundation, either version 3 of the License, or |
10 | (at your option) any later version. | |
851e6368 RS |
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 | |
9ec0b715 | 18 | along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>. */ |
851e6368 RS |
19 | |
20 | /* Jim Blandy <jimb@occs.cs.oberlin.edu> - September 1992 | |
5303ab61 RS |
21 | |
22 | When using GCC 2 as the linker in the build process, options | |
23 | intended for the linker need to be prefixed with the "-Xlinker" | |
24 | option. If an option takes an argument, we need to use -Xlinker | |
25 | twice - once for the option and once for its argument. For | |
26 | example, to run the linker with the options "-Bstatic" "-e" | |
27 | "_start", you'd need to pass the following options to GCC: | |
28 | ||
29 | -Xlinker -Bstatic -Xlinker -e -Xlinker _start. | |
30 | ||
31 | The Emacs makefile used to use a Bourne Shell `for' loop to prefix | |
32 | each linker option with "-Xlinker", but 1) the for loop was hairier | |
33 | than one might hope because it had to work when there were no | |
34 | arguments to pass to the linker - the shell barfs on a loop like | |
35 | this: | |
36 | ||
37 | for arg in ; do echo -Xlinker "$arg"; done | |
38 | ||
39 | and 2) the whole compilation command containing this loop seems to | |
40 | exit with a non-zero status and halt the build under Ultrix. | |
41 | ||
42 | If I can't write a completely portable program to do this in C, | |
43 | I'm quitting and taking up gardening. */ | |
44 | ||
28440f28 EZ |
45 | #ifdef HAVE_CONFIG_H |
46 | # include <config.h> | |
47 | #endif | |
48 | ||
49 | #if STDC_HEADERS | |
50 | # include <stdlib.h> /* for proper declaration of `exit' */ | |
51 | #endif | |
52 | ||
5303ab61 | 53 | #include <stdio.h> |
7e59217d | 54 | #include <stdlib.h> |
5303ab61 | 55 | |
dfcf069d | 56 | int |
971de7fb | 57 | main (int argc, char **argv) |
5303ab61 RS |
58 | { |
59 | char *progname; | |
60 | char *prefix; | |
61 | ||
62 | progname = argv[0]; | |
63 | argc--, argv++; | |
64 | ||
65 | if (argc < 1) | |
66 | { | |
67 | fprintf (stderr, "Usage: %s PREFIX ARGS...\n\ | |
68 | Echo each ARG preceded by PREFIX and a space.\n", progname); | |
69 | exit (2); | |
70 | } | |
71 | ||
72 | prefix = argv[0]; | |
73 | argc--, argv++; | |
74 | ||
75 | for (; argc > 0; argc--, argv++) | |
76 | printf ("%s %s%c", prefix, argv[0], (argc > 1) ? ' ' : '\n'); | |
77 | ||
78 | exit (0); | |
79 | } | |
ab5796a9 MB |
80 | |
81 | /* arch-tag: 08136d70-e5c0-49c7-bcd8-b4850233977a | |
82 | (do not change this comment) */ |