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# =================================================================================
# https://www.gnu.org/software/autoconf-archive/ax_warning_default_pkgconfig.html
# =================================================================================
#
# SYNOPSIS
#
# AX_WARNING_DEFAULT_PKGCONFIGDIR [(dirvariable [,[defsetting][,[A][,[N/A]]]])]
# AX_ENABLE_DEFAULT_PKGCONFIGDIR [(dirvariable [,defsetting])]
#
# DESCRIPTION
#
# print a warning message if the $(datadir)/aclocal directory is not in
# the dirlist searched by the aclocal tool. This macro is useful if some
# `make install` would target $(datadir)/aclocal to install an autoconf m4
# file of your project to be picked up by other projects.
#
# default $1 dirvariable = pkgconfigdir
# default $2 defsetting = ${libdir}/pkgconfig
# default $3 action = nothing to do
# default $4 action = warn the user about mismatch
#
# In the _WARNING_ variant, the defsetting is not placed in dirvariable
# nor is it ac_subst'ed in any way. The default fail-action $4 is to send
# a warning message to the user, and the default accept-action $3 is
# nothing. It is expected that a Makefile is generated with
# pkgconfigdir=${libdir}/pkgconfig
#
# The _ENABLE_ variant however will set not only the $pkgconfigdir shell
# var of the script, but it is also AC-SUBST'ed on default - and
# furthermore a configure option "--enable-default-pkgconfigdir" is
# provided. Only if that option is set then $2 default is not set to the
# canonic default in the a $prefix subpath but instead $2 default is set
# to the primary path where `pkg-config` looks for .pc files. The user may
# also override the default on the command line.
#
# LICENSE
#
# Copyright (c) 2008 Guido U. Draheim <guidod@gmx.de>
#
# 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 9
AC_DEFUN([AX_WARNING_DEFAULT_PKGCONFIGDIR],[dnl
AC_REQUIRE([AX_EXPAND_PREFIX])dnl
AS_VAR_PUSHDEF([DIR],[ax_warning_default_pkgconfig_dir])dnl
AS_VAR_PUSHDEF([BIN],[ax_warning_default_pkgconfig_bin])dnl
AS_VAR_PUSHDEF([LOC],[ax_warning_default_pkgconfig_loc])dnl
LOC='m4_if([$2],,[${libdir}/pkgconfig],[$2])'
m4_ifval([$1],[test ".$[]$1" != "." && LOC="$[]$1"])
if test ".$PKG_CONFIG" = "." ; then # we use the same default as in pkg.m4
AC_PATH_PROG([PKG_CONFIG],[pkg-config],[no])
fi
if test "$PKG_CONFIG" = "no"
then DIR="/" ; test -d "/usr/lib/pkgconfig" && DIR="/usr/lib/pkgconfig"
else BIN=`AS_DIRNAME(["$DIR"])` ;
if test -d "$BIN/lib/pkgconfig" ; then
DIR="$BIN/lib/pkgconfig"
else BIN=`AS_DIRNAME(["$DIR"])`
if test -d "$BIN/lib/pkgconfig" ; then
DIR="$BIN/lib/pkgconfig"
else
if test -d "/usr/lib/pkgconfig" ; then
DIR="/usr/lib/pkgconfig"
else
DIR="/"
fi fi fi
fi
AC_RUN_LOG([: last pkgconfig dir is assumed as "$DIR"])
DIR=`eval "echo $DIR"`
DIR=`eval "echo $DIR"`
LOC=`eval "echo $LOC"`
LOC=`eval "echo $LOC"`
LOC=`eval "echo $LOC"`
LOC=`eval "echo $LOC"`
for DIR in `echo "$PKG_CONFIG_PATH:$DIR" | sed -e 's,:, ,g'` ; do
AC_RUN_LOG([: test ".$LOC" = ".$DIR"])
test ".$LOC" = ".$DIR" && break
done
if test "$LOC" != "$DIR" ; then
m4_ifval([$4],[$4],[dnl
AC_MSG_NOTICE([warning: m4_if([$1],,[pkgconfigdir],[$1])=$LOC dnl
(see config.log)])
AC_MSG_NOTICE([perhaps: make install m4_if([$1],,[pkgconfigdir],[$1])=$DIR])
cat m4_ifset([AS_MESSAGE_LOG_FD],[>&AS_MESSAGE_LOG_FD],[>>config.log]) <<EOF
pkgconfigdir: the m4_if([$1],,[default pkgconfigdir],[$1 value]) of $LOC
pkgconfigdir: is not listed in the dirlist where pkg-config will look for
pkgconfigdir: package-configs - you can override the install-path using
pkgconfigdir: make install m4_if([$1],,[pkgconfigdir],[$1])=$DIR
pkgconfigdir: or set/append the directory to the environment variable
pkgconfigdir: PKG_CONFIG_PATH="$LOC"
EOF
m4_ifvaln([$5],[$5])])dnl
m4_ifvaln([$3],[else $3])dnl
fi
AS_VAR_POPDEF([LOC])dnl
AS_VAR_POPDEF([BIN])dnl
AS_VAR_POPDEF([DIR])dnl
])
AC_DEFUN([AX_ENABLE_DEFAULT_PKGCONFIGDIR],[dnl
AS_VAR_PUSHDEF([BIN],[ax_warning_default_pkgconfig_bin])dnl
AS_VAR_PUSHDEF([DIR],[ax_warning_default_pkgconfig_def])dnl
AS_VAR_PUSHDEF([DEF],[ax_warning_default_pkgconfig_def])dnl
AC_ARG_ENABLE([enable-default-pkgconfigdir],
[ --enable-default-pkgconfigdir(=PATH) override the libdir/pkgconfig default])
test ".$enable_default_pkgconfigdir" = "." && enable_default_pkgconfigdir="no"
case ".$enable_default_pkgconfigdir" in
.no) DIR='m4_if([$2],,[${libdir}/pkgconfig],[$2])' ;;
.yes) # autodetect
if test ".$PKG_CONFIG" = "." ; then # we use the same default as in pkg.m4
AC_PATH_PROG([PKG_CONFIG],[pkg-config],[no])
fi
if test "$PKG_CONFIG" = "no"
then DIR="/tmp" ; test -d "/usr/lib/pkgconfig" && DIR="/usr/lib/pkgconfig"
else BIN=`AS_DIRNAME(["$DIR"])` ;
if test -d "$BIN/lib/pkgconfig" ; then
DIR="$BIN/lib/pkgconfig"
else BIN=`AS_DIRNAME(["$DIR"])`
if test -d "$BIN/lib/pkgconfig" ; then
DIR="$BIN/lib/pkgconfig"
else
if test -d "/usr/lib/pkgconfig" ; then
DIR="/usr/lib/pkgconfig"
else
DIR="/tmp"
fi fi fi
fi ;;
*) DIR="$enable_default_pkgconfigdir" ;;
esac
AX_WARNING_DEFAULT_PKGCONFIGDIR([$1],[$DEF],[$3],[$4],[$5])
m4_if([$1],,[pkgconfigdir],[$1])="$ax_warning_default_pkgconfig_dir"
AC_SUBST(m4_if([$1],,[pkgconfigdir],[$1]))
AS_VAR_POPDEF([DEF])dnl
AS_VAR_POPDEF([DIR])dnl
AS_VAR_POPDEF([BIN])dnl
])
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