IFNAMES(1) General Commands Manual IFNAMES(1) NAME ifnames2.13 - print identifiers that a package uses in C preprocessor conditionals SYNOPSIS ifnames2.13 [ --help | -h ] [ --macrodir=dir | -m dir ] [ --version ] DESCRIPTION ifnames2.13 can help when writing a configure.in for a software pack- age. It prints the identifiers that the package already uses in C pre- processor conditionals. If a package has already been set up to have some portability, this program can help you figure out what its config- ure needs to check for. It may help fill in some gaps in a config- ure.in generated by autoscan2.13 (see autoscan2.13(1)). ifnames2.13 scans all of the C source files named on the command line (or the standard input, if none are given) and writes to the standard output a sorted list of all the identifiers that appear in those files in #if, #elif, #ifdef, or #ifndef directives. It prints each identi- fier on a line, followed by a space-separated list of the files in which that identifier occurs. ifnames2.13 accepts the following options: --help -h Print a summary of the command line options and exit. --macrodir=DIR -m DIR Look for the installed macro files in directory DIR. You can also set the AC_MACRODIR environment variable to a directory; this option overrides the environment variable. --version Print the version number of Autoconf and exit. SEE ALSO autoconf2.13(1), autoheader2.13(1), autoreconf2.13(1), autoscan2.13(1), autoupdate2.13(1) AUTHORS David MacKenzie, with help from Franc,ois Pinard, Karl Berry, Richard Pixley, Ian Lance Taylor, Roland McGrath, Noah Friedman, David D. Zuhn, and many others. This manpage written by Ben Pfaff <pfaffben@de- bian.org> for the Debian GNU/Linux autoconf2.13 package. Autoconf IFNAMES(1)
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