configure

#!/bin/sh

# Parse the arguments...

INSTALL_DIR=`pwd`
case $1 in 
	--installdir) 
	    INSTALL_DIR=$2 ;
	    ;;
	--help)
	    echo "--installdir <directory in which to install>"
	    echo "--help"
	    exit
	    ;;
esac


# Some binaries that we'll need, and the places that we might find them.

binlist="uname flex gcc wish rm cp mkdir chmod sed"
pathlist="/bin /usr/bin /usr/local/bin /sw/bin /usr/x116/bin /usr/X11R6/bin"
libpathlist="/lib /usr/lib /usr/local/lib"
incpathlist="/include /usr/include /usr/local/include"


# Find the binaries (or die trying).

for binary in $binlist ; do
    for path in $pathlist ; do
	if [ -r $path/$binary ] ; then
	    eval "$binary=${path}/${binary}" ;
	    break ;
	fi ;
    done ;
    eval "if [ -z \"\$$binary\" ] ; then echo \"Cannot locate $binary binary.\" ; exit ; fi"
done


# These default values are overridden below for some operating systems.

OS_SIM_LIBS=""
EXE=""
DYN="so"
CODE_FONT="{{Lucida Console} 11 bold}"
BUTTON_FONT="{{Lucida Console} 10 normal}"
CONSOLE_FONT="{{Lucida Console} 10 bold}"


# Tailor the variables based on OS.

case `$uname -s` in
	CYGWIN*) 
		EXE=".exe"
		DYN="dll"
		echo "Configuring for Cygwin..."
		;;
	Linux*) echo "Configuring for Linux..."
		OS_SIM_LIBS="-lcurses"
		;;
	SunOS*)  echo "Configuring for Solaris..."
		OS_SIM_LIBS="-lcurses -lsocket -lnsl"
		;;
	Darwin*)
		FONT="Fixed"
		if [ "$wish" = "/sw/bin/wish" ] ; then
		    echo "Configuring for MacOS-X (Darwin)/Fink Tcl/Tk."
		    # Fink installation--override default fonts using
		    # fonts suggested by Tevis Money.
		    CODE_FONT="{LucidaTypewriter 11 normal}"
		    BUTTON_FONT="{Fixed 10 normal}"
		    CONSOLE_FONT="{Fixed 10 normal}"
		else
		    echo "Configuring for MacOS-X (Darwin)/Aqua Tcl/Tk."
		fi
esac
echo "Installation directory is $INSTALL_DIR"


# Look around for readline.

USE_READLINE=-DUSE_READLINE=1

for path in $libpathlist ; do
    if [ -r $path/libreadline.a ] ; then
    	RLLPATH="-L$path -lreadline" ;
	break ;
    fi ;
    if [ -r $path/libreadline.${DYN}.a ] ; then
    	RLLPATH="-L$path -lreadline" ;
	break ;
    fi ;
done
if [ -z "$RLLPATH" ] ; then
    USE_READLINE= ;
fi

for path in $incpathlist ; do
    if [ -d $path/readline ] ; then
    	RLIPATH=-I$path ;
	break ;
    fi ;
done
if [ -z "$RLIPATH" ] ; then
    USE_READLINE= ;
fi


# Splice it all in to Makefile.def to create the Makefile.

rm -f Makefile
sed -e "s __GCC__ $gcc g" -e "s __FLEX__ $flex g" -e "s __EXE__ $EXE g"     \
    -e "s*__OS_SIM_LIBS__*$OS_SIM_LIBS*g" -e "s __RM__ $rm g"               \
    -e "s __CP__ $cp g" -e "s __MKDIR__ $mkdir g" -e "s __CHMOD__ $chmod g" \
    -e "s __USE_READLINE__ $USE_READLINE g" -e "s*__RLLPATH__*$RLLPATH*g"   \
    -e "s __RLIPATH__ $RLIPATH g" -e "s*__INSTALL_DIR__*$INSTALL_DIR*g"     \
    -e "s __WISH__ $wish g" -e "s __SED__ $sed g"                           \
    -e "s!__CODE_FONT__!$CODE_FONT!g" -e "s!__BUTTON_FONT__!$BUTTON_FONT!g" \
    -e "s!__CONSOLE_FONT__!$CONSOLE_FONT!g" Makefile.def > Makefile