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# ===========================================================================
# https://www.gnu.org/software/autoconf-archive/ax_config_feature.html
# ===========================================================================
#
# SYNOPSIS
#
# AX_CONFIG_FEATURE(FEATURE-NAME, FEATURE-DESCRIPTION, DEFINE, DEFINE-DESCRIPTION, [ACTION-IF-ENABLED [, ACTION-IF-NOT-ENABLED]])
#
# DESCRIPTION
#
# AX_CONFIG_FEATURE is a simple wrapper for AC_ARG_ENABLE, it enables the
# feature FEATURE-NAME and AC_DEFINEs the passed DEFINE, depending on the
# user choice. DESCRIPTION will be used for AC_DEFINEs. ACTION-IF-ENABLED
# and ACTION-IF-NOT-ENABLED are the actions that will be run. A feature is
# enabled by default, in order to change this behaviour use the
# AX_CONFIG_FEATURE_DEFAULT_ENABLED and AX_CONFIG_FEATURE_DEFAULT_DISABLED
# macros.
#
# A simple example:
#
# AX_CONFIG_FEATURE_DEFAULT_ENABLED
# AX_CONFIG_FEATURE(feature_xxxxx, [turns on/off XXXXX support],
# HAVE_XXXXX, [Define if you want XXXXX support])
#
# ...
#
# AX_CONFIG_FEATURE_DEFAULT_DISABLED
# AX_CONFIG_FEATURE(feature_yyyyy, [turns on/off YYYYY support],
# HAVE_YYYYY, [Define if you want YYYYY support],
# [enable_yyyyy="yes"], [enable_yyyyy="no"])
# AM_CONDITIONAL(YYYYY, [test "$enable_yyyyy" = "yes"])
#
# AX_CONFIG_FEATURE_DEFAULT_ENABLED
# AX_CONFIG_FEATURE(...)
#
# ...
#
# If you have lot of features and you want a verbose dumping of each user
# selection use AX_CONFIG_FEATURE_VERBOSE. Use AX_CONFIG_FEATURE_SILENT in
# order to remove a previously AX_CONFIG_FEATURE_VERBOSE. By default
# features are silent.
#
# Use AX_CONFIG_FEATURE_ENABLE or AX_CONFIG_FEATURE_DISABLE in order to
# enable or disable a specific feature.
#
# Another simple example:
#
# AS_IF([some_test_here],[AX_CONFIG_FEATURE_ENABLE(feature_xxxxx)],[])
#
# AX_CONFIG_FEATURE(feature_xxxxx, [turns on/off XXXXX support],
# HAVE_XXXXX, [Define if you want XXXXX support])
# AX_CONFIG_FEATURE(feature_yyyyy, [turns on/off YYYYY support],
# HAVE_YYYYY, [Define if you want YYYYY support],
# [enable_yyyyy="yes"], [enable_yyyyy="no"])
#
# ...
#
# NOTE: AX_CONFIG_FEATURE_ENABLE() must be placed first of the relative
# AX_CONFIG_FEATURE() macro ...
#
# LICENSE
#
# Copyright (c) 2008 Francesco Salvestrini <salvestrini@users.sourceforge.net>
#
# This program is free software; you can redistribute it and/or modify it
# under the terms of the GNU General Public License as published by the
# Free Software Foundation; either version 2 of the License, or (at your
# option) any later version.
#
# This program is distributed in the hope that it will be useful, but
# WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General
# Public License for more details.
#
# You should have received a copy of the GNU General Public License along
# with this program. If not, see <https://www.gnu.org/licenses/>.
#
# As a special exception, the respective Autoconf Macro's copyright owner
# gives unlimited permission to copy, distribute and modify the configure
# scripts that are the output of Autoconf when processing the Macro. You
# need not follow the terms of the GNU General Public License when using
# or distributing such scripts, even though portions of the text of the
# Macro appear in them. The GNU General Public License (GPL) does govern
# all other use of the material that constitutes the Autoconf Macro.
#
# This special exception to the GPL applies to versions of the Autoconf
# Macro released by the Autoconf Archive. When you make and distribute a
# modified version of the Autoconf Macro, you may extend this special
# exception to the GPL to apply to your modified version as well.
#serial 11
AC_DEFUN([AX_CONFIG_FEATURE],[ dnl
m4_pushdef([FEATURE], patsubst([$1], -, _))dnl
AC_ARG_ENABLE([$1],AS_HELP_STRING([--enable-$1],[$2]),[
case "${enableval}" in
yes)
ax_config_feature_[]FEATURE[]="yes"
;;
no)
ax_config_feature_[]FEATURE[]="no"
;;
*)
AC_MSG_ERROR([bad value ${enableval} for feature --$1])
;;
esac
])
AS_IF([test "$ax_config_feature_[]FEATURE[]" = yes],[ dnl
AC_DEFINE([$3])
$5
AS_IF([test "$ax_config_feature_verbose" = yes],[ dnl
AC_MSG_NOTICE([Feature $1 is enabled])
])
],[ dnl
$6
AS_IF([test "$ax_config_feature_verbose" = yes],[ dnl
AC_MSG_NOTICE([Feature $1 is disabled])
])
])
AH_TEMPLATE([$3],[$4])
m4_popdef([FEATURE])dnl
])
dnl Feature global
AC_DEFUN([AX_CONFIG_FEATURE_VERBOSE],[ dnl
ax_config_feature_verbose=yes
])
dnl Feature global
AC_DEFUN([AX_CONFIG_FEATURE_SILENT],[ dnl
ax_config_feature_verbose=no
])
dnl Feature specific
AC_DEFUN([AX_CONFIG_FEATURE_DEFAULT_ENABLED], [
ax_config_feature_[]FEATURE[]_default=yes
])
dnl Feature specific
AC_DEFUN([AX_CONFIG_FEATURE_DEFAULT_DISABLED], [
ax_config_feature_[]FEATURE[]_default=no
])
dnl Feature specific
AC_DEFUN([AX_CONFIG_FEATURE_ENABLE],[ dnl
ax_config_feature_[]patsubst([$1], -, _)[]=yes
])
dnl Feature specific
AC_DEFUN([AX_CONFIG_FEATURE_DISABLE],[ dnl
ax_config_feature_[]patsubst([$1], -, _)[]=no
])
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