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IFNAMES(1)			 User Commands			    IFNAMES(1)

NAME
       ifnames2.72 - Extract CPP conditionals from a set of files

SYNOPSIS
       ifnames2.72 [OPTION]... [FILE]...

DESCRIPTION
       Scan  all  of  the  C  source FILES (or the standard input, if none are
       given) and write	to the standard	output a sorted	list of	all the	 iden-
       tifiers	that  appear  in  those	 files in '#if', '#elif', '#ifdef', or
       '#ifndef' directives.  Print each identifier on a line, followed	 by  a
       space-separated list of the files in which that identifier occurs.

       -h, --help
	      print this help, then exit

       -V, --version
	      print version number, then exit

AUTHOR
       Written by David	J. MacKenzie and Paul Eggert.

REPORTING BUGS
       Report	 bugs	 to    <bug-autoconf@gnu.org>,	  or   via   Savannah:
       <https://savannah.gnu.org/support/?group=autoconf2.72>.

COPYRIGHT
       Copyright (C) 2023 Free Software	Foundation, Inc.  License GPLv3+/Auto-
       conf: GNU GPL version 3 or  later  <https://gnu.org/licenses/gpl.html>,
       <https://gnu.org/licenses/exceptions.html>
       This  is	 free  software:  you  are free	to change and redistribute it.
       There is	NO WARRANTY, to	the extent permitted by	law.

SEE ALSO
       autoconf2.72(1),	automake(1), autoreconf2.72(1),	autoupdate2.72(1), au-
       toheader2.72(1),	autoscan2.72(1), ifnames2.72(1), libtool(1).

       The full	documentation for Autoconf is maintained as a Texinfo  manual.
       To read the manual locally, use the command

	      info autoconf2.72

       You   can   also	  consult   the	  Web	version	  of   the  manual  at
       <https://gnu.org/software/autoconf/manual/>.

GNU Autoconf 2.72		 December 2023			    IFNAMES(1)

Want to link to this manual page? Use this URL:
<https://man.freebsd.org/cgi/man.cgi?query=ifnames2.72&sektion=1&manpath=FreeBSD+Ports+14.3.quarterly>

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