IFNAMES(1)                                                User Commands                                               IFNAMES(1)



NAME
       ifnames - Extract CPP conditionals from a set of files

SYNOPSIS
       ifnames [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 identifiers that appear in those files in `#if', `#elif', `#ifdef', or `#ifndef' directives.  Print each iden-
       tifier 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-autoconfATgnu.org>.  GNU Autoconf home page: <http://www.gnu.org/software/autoconf/>;.  General help
       using GNU software: <http://www.gnu.org/gethelp/>;.

COPYRIGHT
       Copyright  (C)  2010  Free  Software  Foundation,  Inc.   License  GPLv3+/Autoconf:  GNU   GPL   version   3   or   later
       <http://gnu.org/licenses/gpl.html>;, <http://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
       autoconf(1),  automake(1),  autoreconf(1),  autoupdate(1),  autoheader(1),  autoscan(1),  config.guess(1), config.sub(1),
       ifnames(1), libtool(1).

       The full documentation for ifnames is maintained as a Texinfo manual.  If the info  and  ifnames  programs  are  properly
       installed at your site, the command

              info ifnames

       should give you access to the complete manual.



GNU Autoconf 2.65.108-b6a5                                  July 2010                                                 IFNAMES(1)