| # Helper functions for option handling. -*- Autoconf -*- |
| |
| # Copyright (C) 2001-2018 Free Software Foundation, Inc. |
| # |
| # This file is free software; the Free Software Foundation |
| # gives unlimited permission to copy and/or distribute it, |
| # with or without modifications, as long as this notice is preserved. |
| |
| # _AM_MANGLE_OPTION(NAME) |
| # ----------------------- |
| AC_DEFUN([_AM_MANGLE_OPTION], |
| [[_AM_OPTION_]m4_bpatsubst($1, [[^a-zA-Z0-9_]], [_])]) |
| |
| # _AM_SET_OPTION(NAME) |
| # -------------------- |
| # Set option NAME. Presently that only means defining a flag for this option. |
| AC_DEFUN([_AM_SET_OPTION], |
| [m4_define(_AM_MANGLE_OPTION([$1]), [1])]) |
| |
| # _AM_SET_OPTIONS(OPTIONS) |
| # ------------------------ |
| # OPTIONS is a space-separated list of Automake options. |
| AC_DEFUN([_AM_SET_OPTIONS], |
| [m4_foreach_w([_AM_Option], [$1], [_AM_SET_OPTION(_AM_Option)])]) |
| |
| # _AM_IF_OPTION(OPTION, IF-SET, [IF-NOT-SET]) |
| # ------------------------------------------- |
| # Execute IF-SET if OPTION is set, IF-NOT-SET otherwise. |
| AC_DEFUN([_AM_IF_OPTION], |
| [m4_ifset(_AM_MANGLE_OPTION([$1]), [$2], [$3])]) |
