ifnames - Man Page

Extract CPP conditionals from a set of files


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


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.

-h,  --help

print this help, then exit

-V,  --version

print version number, then exit


Written by David J. MacKenzie and Paul Eggert.

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

Referenced By

autoconf(1), autoheader(1), autom4te(1), autoreconf(1), autoscan(1), autoupdate(1).

December 2023 GNU Autoconf 2.72