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mirror of https://github.com/OpenVPN/openvpn.git synced 2024-09-19 19:42:30 +02:00

configure: update old copy of pkg.m4

If we copy this code, let's at least make sure we update
it every decade ;)

I also considered removing it. However, then autoconf
can't be run on systems without pkg-config installed
anymore. While that is very unusual, didn't see a good
reason to break that.

Change-Id: I34e96a225446693f401549d86d872c02427ef7d5
Signed-off-by: Frank Lichtenheld <frank@lichtenheld.com>
Acked-by: Arne Schwabe <arne-openvpn@rfc2549.org>
Message-Id: <20240506160413.7189-1-gert@greenie.muc.de>
URL: https://www.mail-archive.com/openvpn-devel@lists.sourceforge.net/msg28631.html
Signed-off-by: Gert Doering <gert@greenie.muc.de>
This commit is contained in:
Frank Lichtenheld 2024-05-06 18:04:07 +02:00 committed by Gert Doering
parent 815df21d38
commit bccb22ab44

230
m4/pkg.m4
View File

@ -1,29 +1,60 @@
# pkg.m4 - Macros to locate and utilise pkg-config. -*- Autoconf -*- # pkg.m4 - Macros to locate and utilise pkg-config. -*- Autoconf -*-
# serial 1 (pkg-config-0.24) # serial 12 (pkg-config-0.29.2)
#
# Copyright © 2004 Scott James Remnant <scott@netsplit.com>.
#
# 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, write to the Free Software Foundation, Inc.,
# 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
#
# As a special exception to the GNU General Public License, if you
# distribute this file as part of a program that contains a
# configuration script generated by Autoconf, you may include it under
# the same distribution terms that you use for the rest of that program.
# PKG_PROG_PKG_CONFIG([MIN-VERSION]) dnl Copyright © 2004 Scott James Remnant <scott@netsplit.com>.
# ---------------------------------- dnl Copyright © 2012-2015 Dan Nicholson <dbn.lists@gmail.com>
dnl
dnl This program is free software; you can redistribute it and/or modify
dnl it under the terms of the GNU General Public License as published by
dnl the Free Software Foundation; either version 2 of the License, or
dnl (at your option) any later version.
dnl
dnl This program is distributed in the hope that it will be useful, but
dnl WITHOUT ANY WARRANTY; without even the implied warranty of
dnl MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
dnl General Public License for more details.
dnl
dnl You should have received a copy of the GNU General Public License
dnl along with this program; if not, write to the Free Software
dnl Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
dnl 02111-1307, USA.
dnl
dnl As a special exception to the GNU General Public License, if you
dnl distribute this file as part of a program that contains a
dnl configuration script generated by Autoconf, you may include it under
dnl the same distribution terms that you use for the rest of that
dnl program.
dnl PKG_PREREQ(MIN-VERSION)
dnl -----------------------
dnl Since: 0.29
dnl
dnl Verify that the version of the pkg-config macros are at least
dnl MIN-VERSION. Unlike PKG_PROG_PKG_CONFIG, which checks the user's
dnl installed version of pkg-config, this checks the developer's version
dnl of pkg.m4 when generating configure.
dnl
dnl To ensure that this macro is defined, also add:
dnl m4_ifndef([PKG_PREREQ],
dnl [m4_fatal([must install pkg-config 0.29 or later before running autoconf/autogen])])
dnl
dnl See the "Since" comment for each macro you use to see what version
dnl of the macros you require.
m4_defun([PKG_PREREQ],
[m4_define([PKG_MACROS_VERSION], [0.29.2])
m4_if(m4_version_compare(PKG_MACROS_VERSION, [$1]), -1,
[m4_fatal([pkg.m4 version $1 or higher is required but ]PKG_MACROS_VERSION[ found])])
])dnl PKG_PREREQ
dnl PKG_PROG_PKG_CONFIG([MIN-VERSION])
dnl ----------------------------------
dnl Since: 0.16
dnl
dnl Search for the pkg-config tool and set the PKG_CONFIG variable to
dnl first found in the path. Checks that the version of pkg-config found
dnl is at least MIN-VERSION. If MIN-VERSION is not specified, 0.9.0 is
dnl used since that's the first version where most current features of
dnl pkg-config existed.
AC_DEFUN([PKG_PROG_PKG_CONFIG], AC_DEFUN([PKG_PROG_PKG_CONFIG],
[m4_pattern_forbid([^_?PKG_[A-Z_]+$]) [m4_pattern_forbid([^_?PKG_[A-Z_]+$])
m4_pattern_allow([^PKG_CONFIG(_(PATH|LIBDIR|SYSROOT_DIR|ALLOW_SYSTEM_(CFLAGS|LIBS)))?$]) m4_pattern_allow([^PKG_CONFIG(_(PATH|LIBDIR|SYSROOT_DIR|ALLOW_SYSTEM_(CFLAGS|LIBS)))?$])
@ -45,18 +76,19 @@ if test -n "$PKG_CONFIG"; then
PKG_CONFIG="" PKG_CONFIG=""
fi fi
fi[]dnl fi[]dnl
])# PKG_PROG_PKG_CONFIG ])dnl PKG_PROG_PKG_CONFIG
# PKG_CHECK_EXISTS(MODULES, [ACTION-IF-FOUND], [ACTION-IF-NOT-FOUND]) dnl PKG_CHECK_EXISTS(MODULES, [ACTION-IF-FOUND], [ACTION-IF-NOT-FOUND])
# dnl -------------------------------------------------------------------
# Check to see whether a particular set of modules exists. Similar dnl Since: 0.18
# to PKG_CHECK_MODULES(), but does not set variables or print errors. dnl
# dnl Check to see whether a particular set of modules exists. Similar to
# Please remember that m4 expands AC_REQUIRE([PKG_PROG_PKG_CONFIG]) dnl PKG_CHECK_MODULES(), but does not set variables or print errors.
# only at the first occurrence in configure.ac, so if the first place dnl
# it's called might be skipped (such as if it is within an "if", you dnl Please remember that m4 expands AC_REQUIRE([PKG_PROG_PKG_CONFIG])
# have to call PKG_CHECK_EXISTS manually dnl only at the first occurence in configure.ac, so if the first place
# -------------------------------------------------------------- dnl it's called might be skipped (such as if it is within an "if", you
dnl have to call PKG_CHECK_EXISTS manually
AC_DEFUN([PKG_CHECK_EXISTS], AC_DEFUN([PKG_CHECK_EXISTS],
[AC_REQUIRE([PKG_PROG_PKG_CONFIG])dnl [AC_REQUIRE([PKG_PROG_PKG_CONFIG])dnl
if test -n "$PKG_CONFIG" && \ if test -n "$PKG_CONFIG" && \
@ -66,8 +98,10 @@ m4_ifvaln([$3], [else
$3])dnl $3])dnl
fi]) fi])
# _PKG_CONFIG([VARIABLE], [COMMAND], [MODULES]) dnl _PKG_CONFIG([VARIABLE], [COMMAND], [MODULES])
# --------------------------------------------- dnl ---------------------------------------------
dnl Internal wrapper calling pkg-config via PKG_CONFIG and setting
dnl pkg_failed based on the result.
m4_define([_PKG_CONFIG], m4_define([_PKG_CONFIG],
[if test -n "$$1"; then [if test -n "$$1"; then
pkg_cv_[]$1="$$1" pkg_cv_[]$1="$$1"
@ -79,10 +113,11 @@ m4_define([_PKG_CONFIG],
else else
pkg_failed=untried pkg_failed=untried
fi[]dnl fi[]dnl
])# _PKG_CONFIG ])dnl _PKG_CONFIG
# _PKG_SHORT_ERRORS_SUPPORTED dnl _PKG_SHORT_ERRORS_SUPPORTED
# ----------------------------- dnl ---------------------------
dnl Internal check to see if pkg-config supports short errors.
AC_DEFUN([_PKG_SHORT_ERRORS_SUPPORTED], AC_DEFUN([_PKG_SHORT_ERRORS_SUPPORTED],
[AC_REQUIRE([PKG_PROG_PKG_CONFIG]) [AC_REQUIRE([PKG_PROG_PKG_CONFIG])
if $PKG_CONFIG --atleast-pkgconfig-version 0.20; then if $PKG_CONFIG --atleast-pkgconfig-version 0.20; then
@ -90,26 +125,24 @@ if $PKG_CONFIG --atleast-pkgconfig-version 0.20; then
else else
_pkg_short_errors_supported=no _pkg_short_errors_supported=no
fi[]dnl fi[]dnl
])# _PKG_SHORT_ERRORS_SUPPORTED ])dnl _PKG_SHORT_ERRORS_SUPPORTED
# PKG_CHECK_MODULES(VARIABLE-PREFIX, MODULES, [ACTION-IF-FOUND], dnl PKG_CHECK_MODULES(VARIABLE-PREFIX, MODULES, [ACTION-IF-FOUND],
# [ACTION-IF-NOT-FOUND]) dnl [ACTION-IF-NOT-FOUND])
# dnl --------------------------------------------------------------
# dnl Since: 0.4.0
# Note that if there is a possibility the first call to dnl
# PKG_CHECK_MODULES might not happen, you should be sure to include an dnl Note that if there is a possibility the first call to
# explicit call to PKG_PROG_PKG_CONFIG in your configure.ac dnl PKG_CHECK_MODULES might not happen, you should be sure to include an
# dnl explicit call to PKG_PROG_PKG_CONFIG in your configure.ac
#
# --------------------------------------------------------------
AC_DEFUN([PKG_CHECK_MODULES], AC_DEFUN([PKG_CHECK_MODULES],
[AC_REQUIRE([PKG_PROG_PKG_CONFIG])dnl [AC_REQUIRE([PKG_PROG_PKG_CONFIG])dnl
AC_ARG_VAR([$1][_CFLAGS], [C compiler flags for $1, overriding pkg-config])dnl AC_ARG_VAR([$1][_CFLAGS], [C compiler flags for $1, overriding pkg-config])dnl
AC_ARG_VAR([$1][_LIBS], [linker flags for $1, overriding pkg-config])dnl AC_ARG_VAR([$1][_LIBS], [linker flags for $1, overriding pkg-config])dnl
pkg_failed=no pkg_failed=no
AC_MSG_CHECKING([for $1]) AC_MSG_CHECKING([for $2])
_PKG_CONFIG([$1][_CFLAGS], [cflags], [$2]) _PKG_CONFIG([$1][_CFLAGS], [cflags], [$2])
_PKG_CONFIG([$1][_LIBS], [libs], [$2]) _PKG_CONFIG([$1][_LIBS], [libs], [$2])
@ -119,11 +152,11 @@ and $1[]_LIBS to avoid the need to call pkg-config.
See the pkg-config man page for more details.]) See the pkg-config man page for more details.])
if test $pkg_failed = yes; then if test $pkg_failed = yes; then
AC_MSG_RESULT([no]) AC_MSG_RESULT([no])
_PKG_SHORT_ERRORS_SUPPORTED _PKG_SHORT_ERRORS_SUPPORTED
if test $_pkg_short_errors_supported = yes; then if test $_pkg_short_errors_supported = yes; then
$1[]_PKG_ERRORS=`$PKG_CONFIG --short-errors --print-errors --cflags --libs "$2" 2>&1` $1[]_PKG_ERRORS=`$PKG_CONFIG --short-errors --print-errors --cflags --libs "$2" 2>&1`
else else
$1[]_PKG_ERRORS=`$PKG_CONFIG --print-errors --cflags --libs "$2" 2>&1` $1[]_PKG_ERRORS=`$PKG_CONFIG --print-errors --cflags --libs "$2" 2>&1`
fi fi
# Put the nasty error message in config.log where it belongs # Put the nasty error message in config.log where it belongs
@ -140,7 +173,7 @@ installed software in a non-standard prefix.
_PKG_TEXT])[]dnl _PKG_TEXT])[]dnl
]) ])
elif test $pkg_failed = untried; then elif test $pkg_failed = untried; then
AC_MSG_RESULT([no]) AC_MSG_RESULT([no])
m4_default([$4], [AC_MSG_FAILURE( m4_default([$4], [AC_MSG_FAILURE(
[The pkg-config script could not be found or is too old. Make sure it [The pkg-config script could not be found or is too old. Make sure it
is in your PATH or set the PKG_CONFIG environment variable to the full is in your PATH or set the PKG_CONFIG environment variable to the full
@ -156,4 +189,87 @@ else
AC_MSG_RESULT([yes]) AC_MSG_RESULT([yes])
$3 $3
fi[]dnl fi[]dnl
])# PKG_CHECK_MODULES ])dnl PKG_CHECK_MODULES
dnl PKG_CHECK_MODULES_STATIC(VARIABLE-PREFIX, MODULES, [ACTION-IF-FOUND],
dnl [ACTION-IF-NOT-FOUND])
dnl ---------------------------------------------------------------------
dnl Since: 0.29
dnl
dnl Checks for existence of MODULES and gathers its build flags with
dnl static libraries enabled. Sets VARIABLE-PREFIX_CFLAGS from --cflags
dnl and VARIABLE-PREFIX_LIBS from --libs.
dnl
dnl Note that if there is a possibility the first call to
dnl PKG_CHECK_MODULES_STATIC might not happen, you should be sure to
dnl include an explicit call to PKG_PROG_PKG_CONFIG in your
dnl configure.ac.
AC_DEFUN([PKG_CHECK_MODULES_STATIC],
[AC_REQUIRE([PKG_PROG_PKG_CONFIG])dnl
_save_PKG_CONFIG=$PKG_CONFIG
PKG_CONFIG="$PKG_CONFIG --static"
PKG_CHECK_MODULES($@)
PKG_CONFIG=$_save_PKG_CONFIG[]dnl
])dnl PKG_CHECK_MODULES_STATIC
dnl PKG_INSTALLDIR([DIRECTORY])
dnl -------------------------
dnl Since: 0.27
dnl
dnl Substitutes the variable pkgconfigdir as the location where a module
dnl should install pkg-config .pc files. By default the directory is
dnl $libdir/pkgconfig, but the default can be changed by passing
dnl DIRECTORY. The user can override through the --with-pkgconfigdir
dnl parameter.
AC_DEFUN([PKG_INSTALLDIR],
[m4_pushdef([pkg_default], [m4_default([$1], ['${libdir}/pkgconfig'])])
m4_pushdef([pkg_description],
[pkg-config installation directory @<:@]pkg_default[@:>@])
AC_ARG_WITH([pkgconfigdir],
[AS_HELP_STRING([--with-pkgconfigdir], pkg_description)],,
[with_pkgconfigdir=]pkg_default)
AC_SUBST([pkgconfigdir], [$with_pkgconfigdir])
m4_popdef([pkg_default])
m4_popdef([pkg_description])
])dnl PKG_INSTALLDIR
dnl PKG_NOARCH_INSTALLDIR([DIRECTORY])
dnl --------------------------------
dnl Since: 0.27
dnl
dnl Substitutes the variable noarch_pkgconfigdir as the location where a
dnl module should install arch-independent pkg-config .pc files. By
dnl default the directory is $datadir/pkgconfig, but the default can be
dnl changed by passing DIRECTORY. The user can override through the
dnl --with-noarch-pkgconfigdir parameter.
AC_DEFUN([PKG_NOARCH_INSTALLDIR],
[m4_pushdef([pkg_default], [m4_default([$1], ['${datadir}/pkgconfig'])])
m4_pushdef([pkg_description],
[pkg-config arch-independent installation directory @<:@]pkg_default[@:>@])
AC_ARG_WITH([noarch-pkgconfigdir],
[AS_HELP_STRING([--with-noarch-pkgconfigdir], pkg_description)],,
[with_noarch_pkgconfigdir=]pkg_default)
AC_SUBST([noarch_pkgconfigdir], [$with_noarch_pkgconfigdir])
m4_popdef([pkg_default])
m4_popdef([pkg_description])
])dnl PKG_NOARCH_INSTALLDIR
dnl PKG_CHECK_VAR(VARIABLE, MODULE, CONFIG-VARIABLE,
dnl [ACTION-IF-FOUND], [ACTION-IF-NOT-FOUND])
dnl -------------------------------------------
dnl Since: 0.28
dnl
dnl Retrieves the value of the pkg-config variable for the given module.
AC_DEFUN([PKG_CHECK_VAR],
[AC_REQUIRE([PKG_PROG_PKG_CONFIG])dnl
AC_ARG_VAR([$1], [value of $3 for $2, overriding pkg-config])dnl
_PKG_CONFIG([$1], [variable="][$3]["], [$2])
AS_VAR_COPY([$1], [pkg_cv_][$1])
AS_VAR_IF([$1], [""], [$5], [$4])dnl
])dnl PKG_CHECK_VAR