1IFNAMES(1)                       User Commands                      IFNAMES(1)
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NAME

6       ifnames - Extract CPP conditionals from a set of files
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SYNOPSIS

9       ifnames [OPTION]... [FILE]...
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DESCRIPTION

12       Scan  all  of  the  C  source FILES (or the standard input, if none are
13       given) and write to the standard output a sorted list of all the  iden‐
14       tifiers  that  appear  in  those  files in `#if', `#elif', `#ifdef', or
15       `#ifndef' directives.  Print each identifier on a line, followed  by  a
16       space-separated list of the files in which that identifier occurs.
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18       -h, --help
19              print this help, then exit
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21       -V, --version
22              print version number, then exit
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AUTHOR

25       Written by David J. MacKenzie and Paul Eggert.
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REPORTING BUGS

28       Report bugs to <bug-autoconf@gnu.org>.
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31       Copyright  ©  2008  Free Software Foundation, Inc.  License GPLv2+: GNU
32       GPL    version     2     or     later     <http://gnu.org/licenses/old-
33       licenses/gpl-2.0.html>
34       This  is  free  software:  you  are free to change and redistribute it.
35       There is NO WARRANTY, to the extent permitted by law.
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SEE ALSO

38       autoconf(1), automake(1), autoreconf(1), autoupdate(1),  autoheader(1),
39       autoscan(1), config.guess(1), config.sub(1), ifnames(1), libtool(1).
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41       The  full  documentation for ifnames is maintained as a Texinfo manual.
42       If the info and ifnames programs are properly installed at  your  site,
43       the command
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45              info ifnames
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47       should give you access to the complete manual.
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51GNU Autoconf 2.63               September 2008                      IFNAMES(1)
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