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Update pkg.m4 to latest upstream version (0.29.1) (#116) 

* Update comments to reduce diffs against latest upstream (0.29.1).

* Clean up our comments to match the new upstream style.

* Update pkg.m4 to latest upstream version (0.29.1).
feature/tap-sh
Dag-Erling Smørgrav 2017-03-07 18:11:01 +01:00 committed by William Pitcock
parent ced4ec00c8
commit 95b683c864
1 changed files with 160 additions and 104 deletions
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262
pkg.m4
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@ -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 11 (pkg-config-0.29.1)
#
# 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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, 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], [0.29.1])
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 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 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
@ -90,19 +125,17 @@ 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
@ -156,15 +189,40 @@ else
AC_MSG_RESULT([yes]) AC_MSG_RESULT([yes])
$3 $3
fi[]dnl fi[]dnl
])# PKG_CHECK_MODULES ])dnl PKG_CHECK_MODULES
# PKG_INSTALLDIR(DIRECTORY)
# ------------------------- dnl PKG_CHECK_MODULES_STATIC(VARIABLE-PREFIX, MODULES, [ACTION-IF-FOUND],
# Substitutes the variable pkgconfigdir as the location where a module dnl [ACTION-IF-NOT-FOUND])
# should install pkg-config .pc files. By default the directory is dnl ---------------------------------------------------------------------
# $libdir/pkgconfig, but the default can be changed by passing dnl Since: 0.29
# DIRECTORY. The user can override through the --with-pkgconfigdir dnl
# parameter. dnl Checks for existence of MODULES and gathers its build flags with
dnl static libraries enabled. Sets VARIABLE-PREFIX_CFLAGS from --cflags
dnl and VARIABLE-PREFIX_LIBS from --libs.
dnl
dnl Note that if there is a possibility the first call to
dnl PKG_CHECK_MODULES_STATIC might not happen, you should be sure to
dnl include an explicit call to PKG_PROG_PKG_CONFIG in your
dnl configure.ac.
AC_DEFUN([PKG_CHECK_MODULES_STATIC],
[AC_REQUIRE([PKG_PROG_PKG_CONFIG])dnl
_save_PKG_CONFIG=$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], AC_DEFUN([PKG_INSTALLDIR],
[m4_pushdef([pkg_default], [m4_default([$1], ['${libdir}/pkgconfig'])]) [m4_pushdef([pkg_default], [m4_default([$1], ['${libdir}/pkgconfig'])])
m4_pushdef([pkg_description], m4_pushdef([pkg_description],
@ -175,16 +233,18 @@ AC_ARG_WITH([pkgconfigdir],
AC_SUBST([pkgconfigdir], [$with_pkgconfigdir]) AC_SUBST([pkgconfigdir], [$with_pkgconfigdir])
m4_popdef([pkg_default]) m4_popdef([pkg_default])
m4_popdef([pkg_description]) m4_popdef([pkg_description])
]) dnl PKG_INSTALLDIR ])dnl PKG_INSTALLDIR
# PKG_NOARCH_INSTALLDIR(DIRECTORY) dnl PKG_NOARCH_INSTALLDIR([DIRECTORY])
# ------------------------- dnl --------------------------------
# Substitutes the variable noarch_pkgconfigdir as the location where a dnl Since: 0.27
# module should install arch-independent pkg-config .pc files. By dnl
# default the directory is $datadir/pkgconfig, but the default can be dnl Substitutes the variable noarch_pkgconfigdir as the location where a
# changed by passing DIRECTORY. The user can override through the dnl module should install arch-independent pkg-config .pc files. By
# --with-noarch-pkgconfigdir parameter. 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], AC_DEFUN([PKG_NOARCH_INSTALLDIR],
[m4_pushdef([pkg_default], [m4_default([$1], ['${datadir}/pkgconfig'])]) [m4_pushdef([pkg_default], [m4_default([$1], ['${datadir}/pkgconfig'])])
m4_pushdef([pkg_description], m4_pushdef([pkg_description],
@ -195,13 +255,15 @@ AC_ARG_WITH([noarch-pkgconfigdir],
AC_SUBST([noarch_pkgconfigdir], [$with_noarch_pkgconfigdir]) AC_SUBST([noarch_pkgconfigdir], [$with_noarch_pkgconfigdir])
m4_popdef([pkg_default]) m4_popdef([pkg_default])
m4_popdef([pkg_description]) m4_popdef([pkg_description])
]) dnl PKG_NOARCH_INSTALLDIR ])dnl PKG_NOARCH_INSTALLDIR
# PKG_CHECK_VAR(VARIABLE, MODULE, CONFIG-VARIABLE, dnl PKG_CHECK_VAR(VARIABLE, MODULE, CONFIG-VARIABLE,
# [ACTION-IF-FOUND], [ACTION-IF-NOT-FOUND]) dnl [ACTION-IF-FOUND], [ACTION-IF-NOT-FOUND])
# ------------------------------------------- dnl -------------------------------------------
# Retrieves the value of the pkg-config variable for the given module. dnl Since: 0.28
dnl
dnl Retrieves the value of the pkg-config variable for the given module.
AC_DEFUN([PKG_CHECK_VAR], AC_DEFUN([PKG_CHECK_VAR],
[AC_REQUIRE([PKG_PROG_PKG_CONFIG])dnl [AC_REQUIRE([PKG_PROG_PKG_CONFIG])dnl
AC_ARG_VAR([$1], [value of $3 for $2, overriding pkg-config])dnl AC_ARG_VAR([$1], [value of $3 for $2, overriding pkg-config])dnl
@ -210,17 +272,16 @@ _PKG_CONFIG([$1], [variable="][$3]["], [$2])
AS_VAR_COPY([$1], [pkg_cv_][$1]) AS_VAR_COPY([$1], [pkg_cv_][$1])
AS_VAR_IF([$1], [""], [$5], [$4])dnl AS_VAR_IF([$1], [""], [$5], [$4])dnl
])# PKG_CHECK_VAR ])dnl PKG_CHECK_VAR
# PKG_WITH_MODULES(VARIABLE-PREFIX, MODULES, dnl PKG_WITH_MODULES(VARIABLE-PREFIX, MODULES,
# [ACTION-IF-FOUND],[ACTION-IF-NOT-FOUND], dnl [ACTION-IF-FOUND],[ACTION-IF-NOT-FOUND],
# [DESCRIPTION], [DEFAULT]) dnl [DESCRIPTION], [DEFAULT])
# dnl ------------------------------------------
# Prepare a "--with-" configure option using the lowercase [VARIABLE-PREFIX] dnl
# name, merging the behaviour of AC_ARG_WITH and PKG_CHECK_MODULES in a single dnl Prepare a "--with-" configure option using the lowercase
# macro dnl [VARIABLE-PREFIX] name, merging the behaviour of AC_ARG_WITH and
# dnl PKG_CHECK_MODULES in a single macro.
# --------------------------------------------------------------
AC_DEFUN([PKG_WITH_MODULES], AC_DEFUN([PKG_WITH_MODULES],
[ [
m4_pushdef([with_arg], m4_tolower([$1])) m4_pushdef([with_arg], m4_tolower([$1]))
@ -250,38 +311,33 @@ m4_popdef([with_arg])
m4_popdef([description]) m4_popdef([description])
m4_popdef([def_arg]) m4_popdef([def_arg])
]) dnl PKG_WITH_MODULES ])dnl PKG_WITH_MODULES
# PKG_HAVE_WITH_MODULES(VARIABLE-PREFIX, MODULES, dnl PKG_HAVE_WITH_MODULES(VARIABLE-PREFIX, MODULES,
# [DESCRIPTION], [DEFAULT]) dnl [DESCRIPTION], [DEFAULT])
# dnl -----------------------------------------------
# Convenience macro to trigger AM_CONDITIONAL after dnl
# PKG_WITH_MODULES check. dnl Convenience macro to trigger AM_CONDITIONAL after PKG_WITH_MODULES
# dnl check._[VARIABLE-PREFIX] is exported as make variable.
# HAVE_[VARIABLE-PREFIX] is exported as make variable.
#
# --------------------------------------------------------------
AC_DEFUN([PKG_HAVE_WITH_MODULES], AC_DEFUN([PKG_HAVE_WITH_MODULES],
[ [
PKG_WITH_MODULES([$1],[$2],,,[$3],[$4]) PKG_WITH_MODULES([$1],[$2],,,[$3],[$4])
AM_CONDITIONAL([HAVE_][$1], AM_CONDITIONAL([HAVE_][$1],
[test "$AS_TR_SH([with_]m4_tolower([$1]))" = "yes"]) [test "$AS_TR_SH([with_]m4_tolower([$1]))" = "yes"])
]) ])dnl PKG_HAVE_WITH_MODULES
# PKG_HAVE_DEFINE_WITH_MODULES(VARIABLE-PREFIX, MODULES, dnl PKG_HAVE_DEFINE_WITH_MODULES(VARIABLE-PREFIX, MODULES,
# [DESCRIPTION], [DEFAULT]) dnl [DESCRIPTION], [DEFAULT])
# dnl ------------------------------------------------------
# Convenience macro to run AM_CONDITIONAL and AC_DEFINE after dnl
# PKG_WITH_MODULES check. dnl Convenience macro to run AM_CONDITIONAL and AC_DEFINE after
# dnl PKG_WITH_MODULES check. HAVE_[VARIABLE-PREFIX] is exported as make
# HAVE_[VARIABLE-PREFIX] is exported as make and preprocessor variable. dnl and preprocessor variable.
#
# --------------------------------------------------------------
AC_DEFUN([PKG_HAVE_DEFINE_WITH_MODULES], AC_DEFUN([PKG_HAVE_DEFINE_WITH_MODULES],
[ [
PKG_HAVE_WITH_MODULES([$1],[$2],[$3],[$4]) PKG_HAVE_WITH_MODULES([$1],[$2],[$3],[$4])
AS_IF([test "$AS_TR_SH([with_]m4_tolower([$1]))" = "yes"], AS_IF([test "$AS_TR_SH([with_]m4_tolower([$1]))" = "yes"],
[AC_DEFINE([HAVE_][$1], 1, [Enable ]m4_tolower([$1])[ support])]) [AC_DEFINE([HAVE_][$1], 1, [Enable ]m4_tolower([$1])[ support])])
]) ])dnl PKG_HAVE_DEFINE_WITH_MODULES