Imported http://autoconf-archive.cryp.to/ release 2007-02-14.

1 files changed, 166 insertions, 0 deletions

diff --git a/m4/ax_warning_default_pkgconfig.m4 b/m4/ax_warning_default_pkgconfig.m4
new file mode 100644
index 0000000..bc1bb5d
--- /dev/null
+++ b/m4/ax_warning_default_pkgconfig.m4
@@ -0,0 +1,166 @@
+##### http://autoconf-archive.cryp.to/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.
+#
+# LAST MODIFICATION
+#
+#   2006-10-13
+#
+# COPYLEFT
+#
+#   Copyright (c) 2006 Guido U. Draheim <guidod@gmx.de>
+#
+#   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, the respective Autoconf Macro's copyright
+#   owner gives unlimited permission to copy, distribute and modify the
+#   configure scripts that are the output of Autoconf when processing
+#   the Macro. You need not follow the terms of the GNU General Public
+#   License when using or distributing such scripts, even though
+#   portions of the text of the Macro appear in them. The GNU General
+#   Public License (GPL) does govern all other use of the material that
+#   constitutes the Autoconf Macro.
+#
+#   This special exception to the GPL applies to versions of the
+#   Autoconf Macro released by the Autoconf Macro Archive. When you
+#   make and distribute a modified version of the Autoconf Macro, you
+#   may extend this special exception to the GPL to apply to your
+#   modified version as well.
+
+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
+])