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acinclude.m4
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# This file is part of Autoconf. -*- Autoconf -*-
# Copyright (C) 2004 Oren Ben-Kiki
# This file is distributed under the same terms as the Autoconf macro files.
########## CHANGELOG ##################
# 2009-01-14 Martin Mann
# * DX_ARG_ABLE : new variable 'DX_FLAG_DX_CURRENT_FEATURE'
# * DX_CLEAR_DEPEND : use of explicit variable 'DX_FLAG_DX_CURRENT_FEATURE'
# in AC_SUBST instead of 'DX_FLAG[]DX_CURRENT_FEATURE' which is rejected by
# newer autotools
# Generate automatic documentation using Doxygen. Works in concert with the
# aminclude.m4 file and a compatible doxygen configuration file. Defines the
# following public macros:
#
# DX_???_FEATURE(ON|OFF) - control the default setting fo a Doxygen feature.
# Supported features are 'DOXYGEN' itself, 'DOT' for generating graphics,
# 'HTML' for plain HTML, 'CHM' for compressed HTML help (for MS users), 'CHI'
# for generating a seperate .chi file by the .chm file, and 'MAN', 'RTF',
# 'XML', 'PDF' and 'PS' for the appropriate output formats. The environment
# variable DOXYGEN_PAPER_SIZE may be specified to override the default 'a4wide'
# paper size.
#
# By default, HTML, PDF and PS documentation is generated as this seems to be
# the most popular and portable combination. MAN pages created by Doxygen are
# usually problematic, though by picking an appropriate subset and doing some
# massaging they might be better than nothing. CHM and RTF are specific for MS
# (note that you can't generate both HTML and CHM at the same time). The XML is
# rather useless unless you apply specialized post-processing to it.
#
# The macro mainly controls the default state of the feature. The use can
# override the default by specifying --enable or --disable. The macros ensure
# that contradictory flags are not given (e.g., --enable-doxygen-html and
# --enable-doxygen-chm, --enable-doxygen-anything with --disable-doxygen, etc.)
# Finally, each feature will be automatically disabled (with a warning) if the
# required programs are missing.
#
# Once all the feature defaults have been specified, call DX_INIT_DOXYGEN with
# the following parameters: a one-word name for the project for use as a
# filename base etc., an optional configuration file name (the default is
# 'Doxyfile', the same as Doxygen's default), and an optional output directory
# name (the default is 'doxygen-doc').
## ----------##
## Defaults. ##
## ----------##
DX_ENV=""
AC_DEFUN([DX_FEATURE_doc], ON)
AC_DEFUN([DX_FEATURE_dot], ON)
AC_DEFUN([DX_FEATURE_man], OFF)
AC_DEFUN([DX_FEATURE_html], ON)
AC_DEFUN([DX_FEATURE_chm], OFF)
AC_DEFUN([DX_FEATURE_chi], OFF)
AC_DEFUN([DX_FEATURE_rtf], OFF)
AC_DEFUN([DX_FEATURE_xml], OFF)
AC_DEFUN([DX_FEATURE_pdf], ON)
AC_DEFUN([DX_FEATURE_ps], ON)
## --------------- ##
## Private macros. ##
## --------------- ##
# DX_ENV_APPEND(VARIABLE, VALUE)
# ------------------------------
# Append VARIABLE="VALUE" to DX_ENV for invoking doxygen.
AC_DEFUN([DX_ENV_APPEND], [AC_SUBST([DX_ENV], ["$DX_ENV $1='$2'"])])
# DX_DIRNAME_EXPR
# ---------------
# Expand into a shell expression prints the directory part of a path.
AC_DEFUN([DX_DIRNAME_EXPR],
[[expr ".$1" : '\(\.\)[^/]*$' \| "x$1" : 'x\(.*\)/[^/]*$']])
# DX_IF_FEATURE(FEATURE, IF-ON, IF-OFF)
# -------------------------------------
# Expands according to the M4 (static) status of the feature.
AC_DEFUN([DX_IF_FEATURE], [ifelse(DX_FEATURE_$1, ON, [$2], [$3])])
# DX_REQUIRE_PROG(VARIABLE, PROGRAM)
# ----------------------------------
# Require the specified program to be found for the DX_CURRENT_FEATURE to work.
AC_DEFUN([DX_REQUIRE_PROG], [
AC_PATH_TOOL([$1], [$2])
if test "$DX_FLAG_DX_CURRENT_FEATURE$$1" = 1; then
AC_MSG_WARN([$2 not found - will not DX_CURRENT_DESCRIPTION])
AC_SUBST([DX_FLAG_DX_CURRENT_FEATURE], 0)
fi
])
# DX_TEST_FEATURE(FEATURE)
# ------------------------
# Expand to a shell expression testing whether the feature is active.
AC_DEFUN([DX_TEST_FEATURE], [test "$DX_FLAG_$1" = 1])
# DX_CHECK_DEPEND(REQUIRED_FEATURE, REQUIRED_STATE)
# -------------------------------------------------
# Verify that a required features has the right state before trying to turn on
# the DX_CURRENT_FEATURE.
AC_DEFUN([DX_CHECK_DEPEND], [
test "$DX_FLAG_$1" = "$2" \
|| AC_MSG_ERROR([doxygen-DX_CURRENT_FEATURE ifelse([$2], 1,
requires, contradicts) doxygen-DX_CURRENT_FEATURE])
])
# DX_CLEAR_DEPEND(FEATURE, REQUIRED_FEATURE, REQUIRED_STATE)
# ----------------------------------------------------------
# Turn off the DX_CURRENT_FEATURE if the required feature is off.
AC_DEFUN([DX_CLEAR_DEPEND], [
test "$DX_FLAG_$1" = "$2" || AC_SUBST([DX_FLAG_DX_CURRENT_FEATURE], 0)
])
# DX_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 DX_CHECK_DEPEND),
# otherwise CLEAR_DEPEND is called to turn off the default state if a required
# feature is disabled (using DX_CLEAR_DEPEND). REQUIRE performs additional
# requirement tests (DX_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([DX_ARG_ABLE], [
AC_DEFUN([DX_CURRENT_FEATURE], [$1])
AC_DEFUN([DX_FLAG_DX_CURRENT_FEATURE], [DX_FLAG_$1])
AC_DEFUN([DX_CURRENT_DESCRIPTION], [$2])
AC_ARG_ENABLE(doxygen-$1,
[AS_HELP_STRING(DX_IF_FEATURE([$1], [--disable-doxygen-$1],
[--enable-doxygen-$1]),
DX_IF_FEATURE([$1], [don't $2], [$2]))],
[
case "$enableval" in
#(
y|Y|yes|Yes|YES)
AC_SUBST([DX_FLAG_$1], 1)
$3
;; #(
n|N|no|No|NO)
AC_SUBST([DX_FLAG_$1], 0)
;; #(
*)
AC_MSG_ERROR([invalid value '$enableval' given to doxygen-$1])
;;
esac
], [
AC_SUBST([DX_FLAG_$1], [DX_IF_FEATURE([$1], 1, 0)])
$4
])
if DX_TEST_FEATURE([$1]); then
$5
:
fi
if DX_TEST_FEATURE([$1]); then
AM_CONDITIONAL(DX_COND_$1, :)
$6
:
else
AM_CONDITIONAL(DX_COND_$1, false)
$7
:
fi
])
## -------------- ##
## Public macros. ##
## -------------- ##
# DX_XXX_FEATURE(DEFAULT_STATE)
# -----------------------------
AC_DEFUN([DX_DOXYGEN_FEATURE], [AC_DEFUN([DX_FEATURE_doc], [$1])])
AC_DEFUN([DX_MAN_FEATURE], [AC_DEFUN([DX_FEATURE_man], [$1])])
AC_DEFUN([DX_HTML_FEATURE], [AC_DEFUN([DX_FEATURE_html], [$1])])
AC_DEFUN([DX_CHM_FEATURE], [AC_DEFUN([DX_FEATURE_chm], [$1])])
AC_DEFUN([DX_CHI_FEATURE], [AC_DEFUN([DX_FEATURE_chi], [$1])])
AC_DEFUN([DX_RTF_FEATURE], [AC_DEFUN([DX_FEATURE_rtf], [$1])])
AC_DEFUN([DX_XML_FEATURE], [AC_DEFUN([DX_FEATURE_xml], [$1])])
AC_DEFUN([DX_XML_FEATURE], [AC_DEFUN([DX_FEATURE_xml], [$1])])
AC_DEFUN([DX_PDF_FEATURE], [AC_DEFUN([DX_FEATURE_pdf], [$1])])
AC_DEFUN([DX_PS_FEATURE], [AC_DEFUN([DX_FEATURE_ps], [$1])])
# DX_INIT_DOXYGEN(PROJECT, [CONFIG-FILE], [OUTPUT-DOC-DIR])
# ---------------------------------------------------------
# PROJECT also serves as the base name for the documentation files.
# The default CONFIG-FILE is "Doxyfile" and OUTPUT-DOC-DIR is "doxygen-doc".
AC_DEFUN([DX_INIT_DOXYGEN], [
# Files:
AC_SUBST([DX_PROJECT], [$1])
AC_SUBST([DX_CONFIG], [ifelse([$2], [], Doxyfile, [$2])])
AC_SUBST([DX_DOCDIR], [ifelse([$3], [], doxygen-doc, [$3])])
# Environment variables used inside doxygen.cfg:
DX_ENV_APPEND(SRCDIR, $srcdir)
DX_ENV_APPEND(PROJECT, $DX_PROJECT)
DX_ENV_APPEND(DOCDIR, $DX_DOCDIR)
DX_ENV_APPEND(VERSION, $PACKAGE_VERSION)
# Doxygen itself:
DX_ARG_ABLE(doc, [generate any doxygen documentation],
[],
[],
[DX_REQUIRE_PROG([DX_DOXYGEN], doxygen)
DX_REQUIRE_PROG([DX_PERL], perl)],
[DX_ENV_APPEND(PERL_PATH, $DX_PERL)])
# Dot for graphics:
DX_ARG_ABLE(dot, [generate graphics for doxygen documentation],
[DX_CHECK_DEPEND(doc, 1)],
[DX_CLEAR_DEPEND(doc, 1)],
[DX_REQUIRE_PROG([DX_DOT], dot)],
[DX_ENV_APPEND(HAVE_DOT, YES)
DX_ENV_APPEND(DOT_PATH, [`DX_DIRNAME_EXPR($DX_DOT)`])],
[DX_ENV_APPEND(HAVE_DOT, NO)])
# Man pages generation:
DX_ARG_ABLE(man, [generate doxygen manual pages],
[DX_CHECK_DEPEND(doc, 1)],
[DX_CLEAR_DEPEND(doc, 1)],
[],
[DX_ENV_APPEND(GENERATE_MAN, YES)],
[DX_ENV_APPEND(GENERATE_MAN, NO)])
# RTF file generation:
DX_ARG_ABLE(rtf, [generate doxygen RTF documentation],
[DX_CHECK_DEPEND(doc, 1)],
[DX_CLEAR_DEPEND(doc, 1)],
[],
[DX_ENV_APPEND(GENERATE_RTF, YES)],
[DX_ENV_APPEND(GENERATE_RTF, NO)])
# XML file generation:
DX_ARG_ABLE(xml, [generate doxygen XML documentation],
[DX_CHECK_DEPEND(doc, 1)],
[DX_CLEAR_DEPEND(doc, 1)],
[],
[DX_ENV_APPEND(GENERATE_XML, YES)],
[DX_ENV_APPEND(GENERATE_XML, NO)])
# (Compressed) HTML help generation:
DX_ARG_ABLE(chm, [generate doxygen compressed HTML help documentation],
[DX_CHECK_DEPEND(doc, 1)],
[DX_CLEAR_DEPEND(doc, 1)],
[DX_REQUIRE_PROG([DX_HHC], hhc)],
[DX_ENV_APPEND(HHC_PATH, $DX_HHC)
DX_ENV_APPEND(GENERATE_HTML, YES)
DX_ENV_APPEND(GENERATE_HTMLHELP, YES)],
[DX_ENV_APPEND(GENERATE_HTMLHELP, NO)])
# Seperate CHI file generation.
DX_ARG_ABLE(chi, [generate doxygen seperate compressed HTML help index file],
[DX_CHECK_DEPEND(chm, 1)],
[DX_CLEAR_DEPEND(chm, 1)],
[],
[DX_ENV_APPEND(GENERATE_CHI, YES)],
[DX_ENV_APPEND(GENERATE_CHI, NO)])
# Plain HTML pages generation:
DX_ARG_ABLE(html, [generate doxygen plain HTML documentation],
[DX_CHECK_DEPEND(doc, 1) DX_CHECK_DEPEND(chm, 0)],
[DX_CLEAR_DEPEND(doc, 1) DX_CLEAR_DEPEND(chm, 0)],
[],
[DX_ENV_APPEND(GENERATE_HTML, YES)],
[DX_TEST_FEATURE(chm) || DX_ENV_APPEND(GENERATE_HTML, NO)])
# PostScript file generation:
DX_ARG_ABLE(ps, [generate doxygen PostScript documentation],
[DX_CHECK_DEPEND(doc, 1)],
[DX_CLEAR_DEPEND(doc, 1)],
[DX_REQUIRE_PROG([DX_LATEX], latex)
DX_REQUIRE_PROG([DX_MAKEINDEX], makeindex)
DX_REQUIRE_PROG([DX_DVIPS], dvips)
DX_REQUIRE_PROG([DX_EGREP], egrep)])
# PDF file generation:
DX_ARG_ABLE(pdf, [generate doxygen PDF documentation],
[DX_CHECK_DEPEND(doc, 1)],
[DX_CLEAR_DEPEND(doc, 1)],
[DX_REQUIRE_PROG([DX_PDFLATEX], pdflatex)
DX_REQUIRE_PROG([DX_MAKEINDEX], makeindex)
DX_REQUIRE_PROG([DX_EGREP], egrep)])
# LaTeX generation for PS and/or PDF:
if DX_TEST_FEATURE(ps) || DX_TEST_FEATURE(pdf); then
AM_CONDITIONAL(DX_COND_latex, :)
DX_ENV_APPEND(GENERATE_LATEX, YES)
else
AM_CONDITIONAL(DX_COND_latex, false)
DX_ENV_APPEND(GENERATE_LATEX, NO)
fi
# Paper size for PS and/or PDF:
AC_ARG_VAR(DOXYGEN_PAPER_SIZE,
[a4wide (default), a4, letter, legal or executive])
case "$DOXYGEN_PAPER_SIZE" in
#(
"")
AC_SUBST(DOXYGEN_PAPER_SIZE, "")
;; #(
a4wide|a4|letter|legal|executive)
DX_ENV_APPEND(PAPER_SIZE, $DOXYGEN_PAPER_SIZE)
;; #(
*)
AC_MSG_ERROR([unknown DOXYGEN_PAPER_SIZE='$DOXYGEN_PAPER_SIZE'])
;;
esac
#For debugging:
#echo DX_FLAG_doc=$DX_FLAG_doc
#echo DX_FLAG_dot=$DX_FLAG_dot
#echo DX_FLAG_man=$DX_FLAG_man
#echo DX_FLAG_html=$DX_FLAG_html
#echo DX_FLAG_chm=$DX_FLAG_chm
#echo DX_FLAG_chi=$DX_FLAG_chi
#echo DX_FLAG_rtf=$DX_FLAG_rtf
#echo DX_FLAG_xml=$DX_FLAG_xml
#echo DX_FLAG_pdf=$DX_FLAG_pdf
#echo DX_FLAG_ps=$DX_FLAG_ps
#echo DX_ENV=$DX_ENV
])