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+#!/bin/sh
+#
+# Copyright (c) 2004-2006 Frederic Culot
+#                                                                      
+# 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.
+#                                                                       
+# Send your feedback or comments to : calcurse@culot.org
+# Calcurse home page : http://culot.org/calcurse
+#
+#        $calcurse: autogen.sh,v 1.1 2006/07/31 21:00:02 culot Exp $
+#
+#
+# autogen.sh - Generates all the necessary files to build calcurse from
+# cvs tree.
+#
+
+PKG_NAME=calcurse
+AC_VERSION="2 59"
+AUTOCONF_VERSION=2.59
+AC_FLAGS=
+AM_VERSION="1 9"
+AUTOMAKE_VERSION=1.9
+AM_FLAGS="--gnu --copy --add-missing"
+GETTEXT_VERSION="0 14"
+GETTEXT_FLAGS="--copy --no-changelog"
+ACLOCAL_FLAGS="-I m4"
+SRCDIR=`dirname $0`
+test -z "$SRCDIR" && SRCDIR=.
+export AUTOMAKE_VERSION AUTOCONF_VERSION
+
+# Function to check if we are at the top level of calcurse package.
+check_directory_level()
+{
+        (test -f $SRCDIR/configure.ac) || {
+                printf "\n\n**Error**: Directory "\`$SRCDIR\'" does not appear to"
+                printf "\nbe the top-level $PKG_NAME directory.\n"
+                exit 1
+        }
+}
+
+# Clean previous files before running scripts
+clean_old_files()
+{
+        printf "Cleaning old files ... "
+        rm -rf configure config.log aclocal.m4 \
+                config.status config autom4te.cache \
+		po/Makefile.in.in
+        printf "done\n"
+}
+
+# Clean useless backup files
+clean_backup_files()
+{
+	printf "Cleaning backup files ... "
+	rm -rf configure.ac\~ Makefile.am\~
+	printf "done\n"
+}
+
+# Function to check for a program availability
+check_program()
+{
+        PROGRAM=$1
+        printf "Checking for $PROGRAM ... "
+        ($PROGRAM --version) < /dev/null > /dev/null 2>&1 || {
+                printf "\n\n**Error**: You must have $PROGRAM installed."
+                printf "\nDownload the appropriate package for your distribution,"
+                printf "\nor get the source tarball at ftp://ftp.gnu.org/pub/gnu/"
+		printf "\n"
+                exit 1
+        }
+	FOUND=`which $PROGRAM`
+	printf "$FOUND\n"
+}
+
+# Function to check a program's version
+# (there must be a better way, but I am not good at sed...)
+check_program_version()
+{
+        PROGRAM=$1; MAJOR=$2; MINOR=$3
+        printf "Checking that $PROGRAM version is at least $MAJOR.$MINOR ... "
+        VERSION=`$PROGRAM --version |head -n 1|sed 's/([^)]*)//g;s/^[a-zA-Z\.\ \
+                \-]*//;s/ .*$//'`                
+        MAJOR_FOUND=`echo $VERSION | cut -d. -f1`
+        MINOR_FOUND=`echo $VERSION | sed s/[-,a-z,A-Z].*// | cut -d. -f2`
+        [ -z "$MINOR_FOUND" ] && MINOR_FOUND=0
+        
+        WRONG=
+        if [ -z "$MAJOR_FOUND" -lt "$MAJOR" ]; then
+                WRONG=1
+        elif [ "$MAJOR_FOUND" -eq "$MAJOR" ]; then
+                if [ "$MINOR_FOUND" -lt "$MINOR" ]; then
+                        WRONG=1
+                fi
+        fi        
+        if [ ! -z "$WRONG" ]; then
+                printf "\n\n**Error**: found version $MAJOR_FOUND.$MINOR_FOUND,"
+                printf "\nwhich is too old. You should upgrade $PROGRAM."
+                printf "\nDownload the appropriate package for your distribution,"
+                printf "\nor get the source tarball at ftp://ftp.gnu.org/pub/gnu/"
+		printf "\n"
+                exit 1
+        else
+                printf "OK, found $MAJOR_FOUND.$MINOR_FOUND\n"
+        fi
+}
+
+# Dirty hack to run gettextize: problem is that it demands to
+# press Return no matter what... This gets rid of that demand. 
+run_gettext()
+{
+	PROGRAM=gettextize
+	printf "Running $PROGRAM $GETTEXT_FLAGS ... "
+	sed 's:read .*< /dev/tty::' `which $PROGRAM` > my-gettextize
+	chmod +x my-gettextize
+	(printf "\n" | ./my-gettextize $GETTEXT_FLAGS > /dev/null 2>&1) || {
+		printf "\n\n**Error**: $PROGRAM failed.\n"
+		exit 1
+	}
+
+	# now restore the files modified by gettextize 
+	(test -f configure.ac~) && mv -f configure.ac~ configure.ac
+	(test -f Makefile.am~)  && mv -f Makefile.am~  Makefile.am
+	mv -f po/Makevars.template po/Makevars
+	rm my-gettextize
+	printf "OK\n"
+}
+
+# Function to run a program
+run_program()
+{
+        PROGRAM=$1        
+        shift
+        PROGRAM_FLAGS=$@
+        printf "Running $PROGRAM $PROGRAM_FLAGS ... "
+        $PROGRAM $PROGRAM_FLAGS > /dev/null 2>&1 || {
+                printf "\n\n**Error**: $PROGRAM failed.\n"
+                exit 1
+        }
+	printf "OK\n"
+}
+
+# Main
+
+echo " --- $PKG_NAME autogen script ---\n"
+check_directory_level
+clean_old_files
+check_program gettext
+check_program_version gettext $GETTEXT_VERSION
+check_program aclocal
+check_program autoheader
+check_program automake
+check_program_version automake $AM_VERSION
+check_program autoconf
+check_program_version autoconf $AC_VERSION
+run_gettext 
+run_program aclocal $ACLOCAL_FLAGS
+run_program autoheader
+run_program automake $AM_FLAGS
+run_program autoconf $AC_FLAGS
+clean_backup_files
+printf "\nYou can now run the configure script to obtain $PKG_NAME Makefile.\n"