IFNAMES(1)

✨ IFNAMES(1) ✨

ok so this is the ifnames manual page, bestie, and it lives in the User Commands section 💅 it's a lil GNU Autoconf tool and it is lowkey iconic, let's get into it 🫶

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🌸 NAME 🌸

ifnames — extract CPP conditionals from a set of files 🎀

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🦋 SYNOPSIS 🦋

ifnames [OPTION]... [FILE]...

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💖 DESCRIPTION 💖

okay so here's the whole vibe: it scans all of the C source FILES (or, if you didn't give it any files at all, it just reads from the standard input instead 🌈) and then it writes to the standard output a sorted list of every single identifier that shows up in those files inside #if, #elif, #ifdef, or #ifndef directives. no cap, that's the whole job ✨

and the way it formats it?? each identifier gets printed on a line, followed by a space-separated list of the files in which that identifier occurs 💫 so you can see exactly which file said what. it's giving receipts, fr fr 📋

here are the options, and yes there are only two, she's a minimal queen 👑

• -h, --help — prints the help text, then exits 🫶
• -V, --version — prints the version number, then exits 👑

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👑 AUTHOR 👑

Written by David J. MacKenzie and Paul Eggert. legends, honestly 💜

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😭 REPORTING BUGS 😭

found a bug?? pls report it to <bug-autoconf@gnu.org> 🙈

• GNU Autoconf home page: <http://www.gnu.org/software/autoconf/> 🌐
• General help using GNU software: <http://www.gnu.org/gethelp/> 🆘

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🎀 COPYRIGHT 🎀

Copyright © 2009 Free Software Foundation, Inc. 📜

License GPLv2+: GNU GPL version 2 or later <http://gnu.org/licenses/old-licenses/gpl-2.0.html>

This is free software: you are free to change and redistribute it. 💖

There is NO WARRANTY, to the extent permitted by law. ⚠️ like, none. zero. nada. so don't come for her if something breaks, bestie 💀

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🌈 SEE ALSO 🌈

the whole friend group, periodt:

• autoconf(1)
• automake(1)
• autoreconf(1)
• autoupdate(1)
• autoheader(1)
• autoscan(1)
• config.guess(1)
• config.sub(1)
• ifnames(1)
• libtool(1)

also!! the full documentation for ifnames is maintained as a Texinfo manual 📖 and if the info and ifnames programs are properly installed at your site, then this command:

info ifnames

should give you access to the complete manual ✨ go read it, it's right there 🦋

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ok that's the whole page!! this was GNU Autoconf 2.64, dated July 2009 — yes she's a lil vintage but she still ate 💅 mwah, ily, go extract some conditionals 🫶💖✨