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1 /* prefix-args.c - echo each argument, prefixed by a string.
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2 Jim Blandy <jimb@occs.cs.oberlin.edu> - September 1992
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3
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4 When using GCC 2 as the linker in the build process, options
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5 intended for the linker need to be prefixed with the "-Xlinker"
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6 option. If an option takes an argument, we need to use -Xlinker
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7 twice - once for the option and once for its argument. For
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8 example, to run the linker with the options "-Bstatic" "-e"
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9 "_start", you'd need to pass the following options to GCC:
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10
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11 -Xlinker -Bstatic -Xlinker -e -Xlinker _start.
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12
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13 The Emacs makefile used to use a Bourne Shell `for' loop to prefix
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14 each linker option with "-Xlinker", but 1) the for loop was hairier
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15 than one might hope because it had to work when there were no
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16 arguments to pass to the linker - the shell barfs on a loop like
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17 this:
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18
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19 for arg in ; do echo -Xlinker "$arg"; done
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20
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21 and 2) the whole compilation command containing this loop seems to
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22 exit with a non-zero status and halt the build under Ultrix.
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23
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24 If I can't write a completely portable program to do this in C,
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25 I'm quitting and taking up gardening. */
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26
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27 /* Synched up with: FSF 19.30. */
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28
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29 #include <stdio.h>
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30 #include <stdlib.h>
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31
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185
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32 int
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0
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33 main (int argc, char **argv)
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34 {
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35 char *progname;
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36 char *prefix;
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37
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38 progname = argv[0];
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39 argc--, argv++;
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40
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41 if (argc < 1)
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42 {
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43 fprintf (stderr, "Usage: %s PREFIX ARGS...\n"
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44 "Echo each ARG preceded by PREFIX and a space.\n", progname);
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45 exit (2);
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46 }
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47
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48 prefix = argv[0];
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49 argc--, argv++;
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50
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51 for (; argc > 0; argc--, argv++)
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52 printf ("%s %s%c", prefix, argv[0], (argc > 1) ? ' ' : '\n');
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53
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185
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54 return 0;
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0
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55 }
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