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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 identifier on a line, followed by a space-separated list of the files in which that identifier occurs.

print this help, then exit
print version number, then exit

AUTHOR

Written by David J. MacKenzie and Paul Eggert.

REPORTING BUGS

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COPYRIGHT

Copyright © 2023 Free Software Foundation, Inc. License GPLv3+/Autoconf: 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

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

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December 2023 GNU Autoconf 2.72