configure

#!/bin/sh

# configure
#
# Aikido Language System,
# export version: 1.00
# Copyright (c) 2002 Sun Microsystems, Inc.
#
# Sun Public License Notice
#
# The contents of this file are subject to the Sun Public License Version
# 1.0 (the "License"). You may not use this file except in compliance with
# the License. A copy of the License is included as the file "license.terms",
# and also available at http://www.sun.com/
#
# The Original Code is from:
#    Aikido Language System release 1.00
# The Initial Developer of the Original Code is: David Allison
# Portions created by David Allison are Copyright (C) Sun Microsystems, Inc.
# All Rights Reserved.
#
# Contributor(s): dallison
#
# Version:  1.5
# Created by dallison on 4/19/2002
# Last modified by dallison on 03/07/29
#/

#
# build the top level Makefile for the platform upon which
# this is being run
#


# enable this for debug
#set -x


# parse the args

prefix=/usr/local
forcegcc=0

gcccmd=gcc

usage="Usage: configure [--prefix=dir] [--gcc=cmd]"

while test $# -gt 0 ; do
    case "$1" in
        --prefix=*)
            prefix="`echo \"$1\" | sed -e 's/^[^=]*=//'`"
            shift
            ;;
        --prefix)
            shift
            test $# -eq 0 && { echo "$usage" 1>&2 ; exit 1; }
            prefix=$1
            shift
            ;;
        --gcc)
            shift
            forcegcc=1
            ;;
        --gcc=*)
            gcccmd="`echo \"$1\" | sed -e 's/^[^=]*=//'`"
            shift
            forcegcc=1
            ;;
        *) echo "$usage" ; exit 1 ;;
    esac
done

sys=`uname`

# find the OS 
os=

case "$sys" in
SunOS) os=solaris ;;
Linux) os=linux ;;
Darwin) os=macosx ;;
CYGWIN*) os=cygwin ;;
*) echo "Unknown operating system $sys" ;  exit 1 ;;
esac

echo Configuring for $os compilation

# look for the C++ compiler
SunCC=CC
SunCCVersion="Sun WorkShop 6"
GCC=$gcccmd
makefile=

case $os in
solaris)
        # for Solaris, the compiler of choice is the Sun CC compiler
        # as the executable generated by the optimizer is a lot
        # faster than that generated by gcc 2.95
        cc=`type $SunCC`            # Sun CC?
        if [ $forcegcc -eq 0 ] && [ `echo "$cc" | grep 'not found' | wc -l` -eq 0 ]
        then
            version=`$SunCC -V 2>&1`
            if [ `echo "$version" | grep "$SunCCVersion" | wc -l` -eq 0 ]
            then
                 echo "Can only use version $SunCCVersion of Sun CC"
                 echo "I found version $version"
                 exit 3
            fi
            makefile=Makefile.solaris
            echo Compiler is Sun CC
        else
                cc=`type $GCC`
                if [ `echo "$cc" | grep 'not found' | wc -l` -ne 0 ]
                then
                    echo "Cannot find a C++ compiler on your system"
                    exit 2
                fi
            makefile=Makefile.gcc
            echo Compiler is gcc
        fi
        ;;
linux) 
        makefile=Makefile.linux
        ;;
macosx) 
        makefile=Makefile.macosx
        ;;
cygwin)
	makefile=Makefile.cygwin
	;;
esac

# look for the zip command
zipcmd="zip -0 -u -v"
zipexec=`type zip`
if [ `echo "$zipexec" | grep 'not found' | wc -l` -ne 0 ]               # can't find zip?
then
    zipexec=`type jar`
    if [ `echo "$zipexec" | grep 'not found' | wc -l` -ne 0 ]
    then
        echo "Can't find either zip or jar command, please put one in your path"
        exit 4
    else
        # check for -u in the jar command
        jarhelp=`jar -help 2>&1 | grep -- -u | wc -l`
        if [ $jarhelp -eq 0 ]
        then
            echo "The jar command does not support the -u option, you need a newer version"
            type jar
            exit 6
        fi
        zipcmd="jar uvf0"
    fi
fi

gtkinc=
glibinc=
gtktarget=

findgtk() {
    gtk=`type gtk-config 2>&1`
    if [ `echo "$gtk" | grep 'not found' | wc -l` -ne 0 ]
    then
        echo "Warning: Can't find GTK+ (looking for gtk-config)"
    else
        gtkversion=`gtk-config --version`
        if [ `echo "$gtkversion" | grep '1\.2' | wc -l` -ne 0 ]
        then
            v=`echo "$gtkversion" | sed -e s/1\.2\.//`
            if [ "$v" -lt 8 ]
            then
                echo "Warning: Need at least version 1.2.8 of GTK+"
                return
            fi
        fi

        gtkinc=`gtk-config --cflags`

        glib=`type glib-config 2>&1`
        if [ `echo "$glib" | grep 'not found' | wc -l` -ne 0 ]
        then
            echo "Warning: Can't find GLIB (looking for glib-config)"
            return
        fi
        glibversion=`glib-config --version`
        if [ `echo "$glibversion" | grep '1\.2' | wc -l` -ne 0 ]
        then
            v=`echo "$glibversion" | sed -e s/1\.2\.//`
            if [ "$v" -lt 8 ]
            then
                echo "Warning: Need at least version 1.2.8 of GLIB"
                return
            fi
        fi

        glibinc=`glib-config --cflags`
        gtktarget=xgtk
    fi
}

findgtk

# now write the Makefile

cat > Makefile <<EOF

#
# Makefile generated by configure.  If you modify it by hand you might
# lose the edits if configure is run again
#

EOF

if [ "$gtktarget" = "" ]
then
cat >> Makefile << EOF

# This does not include GTK+ targets.  If you download GTK+ and wish
# to use it, please rerun configure

EOF
fi

cat >> Makefile << EOF

dest ?= /usr/local

default:
	\$(MAKE) -f $makefile default $gtktarget GTKINC="$gtkinc" GLIBINC="$glibinc" ZIPCMD="$zipcmd" CCCMD="$GCC"

clean:
	\$(MAKE) -f $makefile clean 

opt:
	\$(MAKE) -f $makefile opt GTKINC="$gtkinc" GLIBINC="$glibinc" ZIPCMD="$zipcmd" CCCMD="$GCC"

debug _debug:
	\$(MAKE) -f $makefile debug GTKINC="$gtkinc" GLIBINC="$glibinc" ZIPCMD="$zipcmd" CCCMD="$GCC"

rpm:
	\$(MAKE) -f $makefile rpm GTKINC="$gtkinc" GLIBINC="$glibinc" ZIPCMD="$zipcmd" CCCMD="$GCC"

qrpm:
	\$(MAKE) -f $makefile qrpm GTKINC="$gtkinc" GLIBINC="$glibinc" ZIPCMD="$zipcmd" CCCMD="$GCC"

xtras:
	\$(MAKE) -C extras -f $makefile all 
    
EOF

if [ "$gtktarget" != "" ]
then

cat >> Makefile << EOF
gtk:
	\$(MAKE) -f $makefile gtk GTKINC="$gtkinc" GLIBINC="$glibinc" CCCMD="$GCC"

EOF

fi


if [ "$os" = linux ]
then
cat >> Makefile << EOF

install: 
	./aikido-install \$(dest)
EOF
else
cat >> Makefile << EOF

PREFIX=$prefix

install: 
	./aikido-install \$(PREFIX)
EOF
fi

echo Makefile created