icinga2/m4/ax_prog_asciidoc.m4

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# ===========================================================================
# ax_prog_asciidoc
# ===========================================================================
#
# SYNOPSIS
#
# AD_INIT_ASCIIDOC(PROJECT-NAME, [OUTPUT-DIR])
# AD_ASCIIDOC_FEATURE(ON|OFF)
#
# DESCRIPTION
#
# Based on the Doxygen Macro, modified for Asciidoc detection
#
# LICENSE
#
# Copyright (c) 2013 Icinga Development Team
# Copyright (c) 2009 Oren Ben-Kiki <oren@ben-kiki.org>
#
# Copying and distribution of this file, with or without modification, are
# permitted in any medium without royalty provided the copyright notice
# and this notice are preserved. This file is offered as-is, without any
# warranty.
#serial 12
## ----------##
## Defaults. ##
## ----------##
AD_ENV=""
AC_DEFUN([AD_FEATURE_doc], ON)
## --------------- ##
## Private macros. ##
## --------------- ##
# AD_ENV_APPEND(VARIABLE, VALUE)
# ------------------------------
# Append VARIABLE="VALUE" to AD_ENV for invoking asciidoc.
AC_DEFUN([AD_ENV_APPEND], [AC_SUBST([AD_ENV], ["$AD_ENV $1='$2'"])])
# AD_DIRNAME_EXPR
# ---------------
# Expand into a shell expression prints the directory part of a path.
AC_DEFUN([AD_DIRNAME_EXPR],
[[expr ".$1" : '\(\.\)[^/]*$' \| "x$1" : 'x\(.*\)/[^/]*$']])
# AD_IF_FEATURE(FEATURE, IF-ON, IF-OFF)
# -------------------------------------
# Expands according to the M4 (static) status of the feature.
AC_DEFUN([AD_IF_FEATURE], [ifelse(AD_FEATURE_$1, ON, [$2], [$3])])
# AD_REQUIRE_PROG(VARIABLE, PROGRAM)
# ----------------------------------
# Require the specified program to be found for the AD_CURRENT_FEATURE to work.
AC_DEFUN([AD_REQUIRE_PROG], [
AC_PATH_TOOL([$1], [$2])
if test "$AD_FLAG_[]AD_CURRENT_FEATURE$$1" = 1; then
AC_MSG_WARN([$2 not found - will not AD_CURRENT_DESCRIPTION])
AC_SUBST(AD_FLAG_[]AD_CURRENT_FEATURE, 0)
fi
])
# AD_TEST_FEATURE(FEATURE)
# ------------------------
# Expand to a shell expression testing whether the feature is active.
AC_DEFUN([AD_TEST_FEATURE], [test "$AD_FLAG_$1" = 1])
# AD_FEATURE_ARG(FEATURE, DESCRIPTION,
# CHECK_DEPEND, CLEAR_DEPEND,
# REQUIRE, DO-IF-ON, DO-IF-OFF)
# --------------------------------------------
# Parse the command-line option controlling a feature. CHECK_DEPEND is called
# if the user explicitly turns the feature on (and invokes AD_CHECK_DEPEND),
# otherwise CLEAR_DEPEND is called to turn off the default state if a required
# feature is disabled (using AD_CLEAR_DEPEND). REQUIRE performs additional
# requirement tests (AD_REQUIRE_PROG). Finally, an automake flag is set and
# DO-IF-ON or DO-IF-OFF are called according to the final state of the feature.
AC_DEFUN([AD_ARG_ABLE], [
AC_DEFUN([AD_CURRENT_FEATURE], [$1])
AC_DEFUN([AD_CURRENT_DESCRIPTION], [$2])
AC_ARG_ENABLE(asciidoc-$1,
[AS_HELP_STRING(AD_IF_FEATURE([$1], [--disable-asciidoc-$1],
[--enable-asciidoc-$1]),
AD_IF_FEATURE([$1], [don't $2], [$2]))],
[
case "$enableval" in
#(
y|Y|yes|Yes|YES)
AC_SUBST([AD_FLAG_$1], 1)
$3
;; #(
n|N|no|No|NO)
AC_SUBST([AD_FLAG_$1], 0)
;; #(
*)
AC_MSG_ERROR([invalid value '$enableval' given to asciidoc-$1])
;;
esac
], [
AC_SUBST([AD_FLAG_$1], [AD_IF_FEATURE([$1], 1, 0)])
$4
])
if AD_TEST_FEATURE([$1]); then
$5
:
fi
AM_CONDITIONAL(AD_COND_$1, AD_TEST_FEATURE([$1]))
if AD_TEST_FEATURE([$1]); then
$6
:
else
$7
:
fi
])
## -------------- ##
## Public macros. ##
## -------------- ##
# AD_XXX_FEATURE(DEFAULT_STATE)
# -----------------------------
AC_DEFUN([AD_ASCIIDOC_FEATURE], [AC_DEFUN([AD_FEATURE_asciidoc], [$1])])
# AD_INIT_ASCIIDOC(PROJECT, [OUTPUT-DOC-DIR])
# ---------------------------------------------------------
# PROJECT also serves as the base name for the documentation files.
AC_DEFUN([AD_INIT_ASCIIDOC], [
# Files:
AC_SUBST([AD_PROJECT], [$1])
AC_SUBST([AD_DOCDIR], [ifelse([$2], [], docs, [$2])])
# Asciidoc itself:
AD_ARG_ABLE(doc, [generate any asciidoc documentation],
[],
[],
[AD_REQUIRE_PROG([AD_ASCIIDOC], asciidoc)]
)
])