#!/bin/sh

#
# Defaults
#
INPUT_FILE=Makefile_start
OUTPUT_FILE=Makefile
LIBTYPE=static
INSTALLDIR=/usr/local/bin
LIBINSTALLDIR=/usr/local/lib

#
# Process command line arguments
#
while [ $# -gt 0 ] ; do
	if [ "$1" = "--install-dir" ] ; then
		if [ $# -lt 2 ] ; then
			echo "--install-dir requires a directory"
			exit
		else
			shift
			INSTALLDIR="$1"
			shift
		fi
	elif [ "$1" = "--install-lib" ] ; then
		if [ $# -lt 2 ] ; then
			echo "--install-lib requires a directory"
			exit
		else
			shift
			LIBINSTALLDIR="$1"
			shift
		fi
	elif [ "$1" = "--dynamic" ] ; then
		LIBTYPE="dynamic"
		shift
	elif [ "$1" = "--static" ] ; then
		LIBTYPE="static"
		shift
	else
		echo "Unidentified argument $1"
		exit
	fi
done

#
# Use the correct makefiles for dynamic/static option
#
if [ "$LIBTYPE" = "dynamic" ] ; then
	cp lib/Makefile.dynamic  lib/Makefile
	cp bin/Makefile.dynamic  bin/Makefile
	cp test/Makefile.dynamic test/Makefile
else
	cp lib/Makefile.static  lib/Makefile
	cp bin/Makefile.static  bin/Makefile
	cp test/Makefile.static test/Makefile
fi

#
# Determine architecture and architecture-dependent values
#
type="Unknown"
universal_binary="FALSE"
UNAME=$(uname -a)

if [ $( echo $UNAME | grep Linux | wc | awk '{print $1;}' ) -eq 1 ] ; then
	if [ $( echo $UNAME | grep 'i[3456]86' | wc | awk '{print $1};') -eq 1 ] ; then
		type="Linux_x86"
	elif [ $( echo $UNAME | grep 'x86_64' | wc | awk '{print $1};') -eq 1 ] ; then
		type="Linux_x86_64"
	elif [ $( echo $UNAME | grep 'ppc64le' | wc | awk '{print $1};') -eq 1 ] ; then
		type="Linux_ppc64le"
	else
		type="Linux_Unknown"
	fi
fi
if [ $( echo $UNAME | grep Darwin | wc | awk '{print $1;}' ) -eq 1 ] ; then
	type="MacOSX_Unknown"
	if [ $( echo $UNAME | grep -E 'powerpc|Power Macintosh' | wc | awk '{print $1};') -eq 1 ] ; then
		type="MacOSX_ppc"
	fi
	if [ $( echo $UNAME | grep 'i386' | wc | awk '{print $1}') -eq 1 ] ; then
		type="MacOSX_i386"
	fi
	if [ $( echo $UNAME | grep 'x86_64' | wc | awk '{print $1}') -eq 1 ] ; then
		type="MacOSX_x86_64"
	fi
fi
if [ $( echo $UNAME | grep SunOS | wc | awk '{print $1;}' ) -eq 1 ] ; then
	type="SunOS5"
fi
if [ $( echo $UNAME | grep IRIX | wc | awk '{print $1;}' ) -eq 1 ] ; then
	type="IRIX"
fi
if [ $( echo $UNAME | grep NetBSD | wc | awk '{print $1;}' ) -eq 1 ] ; then
	type="NetBSD"
fi
if [ $( echo $UNAME | grep FreeBSD | wc | awk '{print $1;}' ) -eq 1 ] ; then
	type="FreeBSD"
fi
if [ $( echo $UNAME | grep OpenBSD | wc | awk '{print $1;}' ) -eq 1 ] ; then
	type="OpenBSD"
fi
if [ $( echo $UNAME | grep Cygwin | wc | awk '{print $1;}' ) -eq 1 ] ; then
	type="Cygwin"
fi
if [ $( echo $UNAME | grep Msys | wc | awk '{print $1;}' ) -eq 1 ] ; then
	type="MinGW"
fi

if [ "$type" = "Linux_x86" ] ; then
	CC='cc'
	CFLAGS='-Wall'
	if [ "$LIBTYPE" = "dynamic" ] ; then
		CLIBFLAGS='-Wall -fPIC'
	else
		CLIBFLAGS='-Wall'
	fi
	EXEEXT=''
	LIBBASE='libbibutils'
	STATICLIBEXT='.a'
	DYNAMICLIBEXT='.so'
	RANLIB='ranlib'
	POSTFIX='_i386'
elif [ "$type" = "Linux_x86_64" ] ; then
	CC='cc'
	CFLAGS='-Wall'
	if [ "$LIBTYPE" = "dynamic" ] ; then
		CLIBFLAGS='-Wall -fPIC'
	else
		CLIBFLAGS='-Wall'
	fi
	EXEEXT=''
	LIBBASE='libbibutils'
	STATICLIBEXT='.a'
	DYNAMICLIBEXT='.so'
	RANLIB='ranlib'
	POSTFIX='_amd64'
elif [ "$type" = "Linux_ppc64le" ] ; then
	CC='cc'
	CFLAGS='-Wall'
	if [ "$LIBTYPE" = "dynamic" ] ; then
		CLIBFLAGS='-Wall -fPIC'
	else
		CLIBFLAGS='-Wall'
	fi
	EXEEXT=''
	LIBBASE='libbibutils'
	STATICLIBEXT='.a'
	DYNAMICLIBEXT='.so'
	RANLIB='ranlib'
	POSTFIX='_ppc64le'
elif [ "$type" = "Linux_Unknown" ] ; then
	CC='cc'
	CFLAGS='-Wall'
	if [ "$LIBTYPE" = "dynamic" ] ; then
		CLIBFLAGS='-Wall -fPIC'
	else
		CLIBFLAGS='-Wall'
	fi
	EXEEXT=''
	LIBBASE='libbibutils'
	STATICLIBEXT='.a'
	DYNAMICLIBEXT='.so'
	RANLIB='ranlib'
	POSTFIX=''
elif [ "$type" = "MacOSX_ppc" ] ; then
	CC='cc'
	CFLAGS='-Wall'
	if [ "$LIBTYPE" = "dynamic" ] ; then
		CLIBFLAGS='-Wall -fPIC'
	else
		CLIBFLAGS='-Wall'
	fi
	EXEEXT=''
	LIBBASE='libbibutils'
	STATICLIBEXT='.a'
	DYNAMICLIBEXT='.so'
	RANLIB='ranlib -s'
	POSTFIX='_osx_ppc'
elif [ "$type" = "MacOSX_i386" ] ; then
	CC='cc'
	CFLAGS='-Wall'
	if [ "$LIBTYPE" = "dynamic" ] ; then
		CLIBFLAGS='-Wall -fPIC'
	else
		CLIBFLAGS='-Wall'
	fi
	EXEEXT=''
	LIBBASE='libbibutils'
	STATICLIBEXT='.a'
	DYNAMICLIBEXT='.so'
	RANLIB='ranlib -s'
	POSTFIX='_osx_i386'
elif [ "$type" = "MacOSX_x86_64" ] ; then
	CC='cc'
	CFLAGS='-Wall'
	if [ "$LIBTYPE" = "dynamic" ] ; then
		CLIBFLAGS='-Wall -fPIC'
	else
		CLIBFLAGS='-Wall'
	fi
	EXEEXT=''
	LIBBASE='libbibutils'
	STATICLIBEXT='.a'
	DYNAMICLIBEXT='.so'
	RANLIB='ranlib -s'
	POSTFIX='_osx_x86_64'
elif [ "$type" = "MacOSX_Unknown" ] ; then
	CC='cc'
	CFLAGS='-Wall'
	if [ "$LIBTYPE" = "dynamic" ] ; then
		CLIBFLAGS='-Wall -fPIC'
	else
		CLIBFLAGS='-Wall'
	fi
	EXEEXT=''
	LIBBASE='libbibutils'
	STATICLIBEXT='.a'
	DYNAMICLIBEXT='.so'
	RANLIB='ranlib -s'
	POSTFIX='_osx'
elif [ "$type" = "SunOS5" ] ; then
	CC='gcc'
	CFLAGS='-Wall'
	if [ "$LIBTYPE" = "dynamic" ] ; then
		CLIBFLAGS='-Wall -fPIC'
	else
		CLIBFLAGS='-Wall'
	fi
	EXEEXT=''
	LIBBASE='libbibutils'
	STATICLIBEXT='.a'
	DYNAMICLIBEXT='.so'
	RANLIB='"echo Skipping ranlib"'
	POSTFIX='_sunos5'
elif [ "$type" = "IRIX" ] ; then
	CC='gcc'
	CFLAGS='-Wall'
	if [ "$LIBTYPE" = "dynamic" ] ; then
		CLIBFLAGS='-Wall -fPIC'
	else
		CLIBFLAGS='-Wall'
	fi
	EXEEXT=''
	LIBBASE='libbibutils'
	STATICLIBEXT='.a'
	DYNAMICLIBEXT='.so'
	RANLIB='"echo Skipping ranlib"'
	POSTFIX='_irix'
elif [ "$type" = "NetBSD" ] ; then
	CC='gcc'
	CFLAGS='-Wall'
	if [ "$LIBTYPE" = "dynamic" ] ; then
		CLIBFLAGS='-Wall -fPIC'
	else
		CLIBFLAGS='-Wall'
	fi
	EXEEXT=''
	LIBBASE='libbibutils'
	STATICLIBEXT='.a'
	DYNAMICLIBEXT='.so'
	RANLIB='ranlib'
	POSTFIX='_netbsd'
elif [ "$type" = "FreeBSD" ] ; then
	CC='gcc'
	CFLAGS='-Wall'
	if [ "$LIBTYPE" = "dynamic" ] ; then
		CLIBFLAGS='-Wall -fPIC'
	else
		CLIBFLAGS='-Wall'
	fi
	EXEEXT=''
	LIBBASE='libbibutils'
	STATICLIBEXT='.a'
	DYNAMICLIBEXT='.so'
	RANLIB='ranlib'
	POSTFIX='_freebsd'
elif [ "$type" = "OpenBSD" ] ; then
	CC='gcc'
	CFLAGS='-Wall'
	if [ "$LIBTYPE" = "dynamic" ] ; then
		CLIBFLAGS='-Wall -fPIC'
	else
		CLIBFLAGS='-Wall'
	fi
	EXEEXT=''
	LIBBASE='libbibutils'
	STATICLIBEXT='.a'
	DYNAMICLIBEXT='.so'
	RANLIB='ranlib'
	POSTFIX='_openbsd'
elif [ "$type" = "Cygwin" ] ; then
	CC='cc'
	CFLAGS='-Wall'
	CLIBFLAGS='-Wall'
	EXEEXT='.exe'
	LIBBASE='bibutils'
	STATICLIBEXT='.a'
	DYNAMICLIBEXT='.dll'
	RANLIB='"echo Skipping ranlib"'
	POSTFIX='_cygwin'
	LIBINSTALLDIR=${INSTALLDIR}
elif [ "$type" = "MinGW" ] ; then
	CC='gcc'
	CFLAGS='-Wall'
	CLIBFLAGS='-Wall'
	EXEEXT='.exe'
	LIBBASE='bibutils'
	STATICLIBEXT='.a'
	DYNAMICLIBEXT='.dll'
	RANLIB='"echo Skipping ranlib"'
	POSTFIX='_mingw'
	LIBINSTALLDIR=${INSTALLDIR}
else
	# Unknown operating system
	CC='cc'
	CFLAGS=''
	CLIBFLAGS=''
	if [ "$LIBTYPE" = "dynamic" ] ; then
		CLIBFLAGS='-Wall -fPIC'
	else
		CLIBFLAGS='-Wall'
	fi
	EXEEXT=''
	LIBBASE='libbibutils'
	STATICLIBEXT='.a'
	DYNAMICLIBEXT='.so'
	RANLIB='"echo Skipping ranlib"'
	POSTFIX=''
fi

#
# Set up for dynamic or static libraries
#
if [ "$LIBTYPE" = "dynamic" ] ; then
	cp lib/Makefile.dynamic  lib/Makefile
	cp bin/Makefile.dynamic  bin/Makefile
	cp test/Makefile.dynamic test/Makefile
	LIBEXT=${DYNAMICLIBEXT}
else
	cp lib/Makefile.static  lib/Makefile
	cp bin/Makefile.static  bin/Makefile
	cp test/Makefile.static test/Makefile
	LIBEXT=${STATICLIBEXT}
fi


#
# Generate the upper-level Makefile
#
LIBTARGET=${LIBBASE}${LIBEXT}

cat $INPUT_FILE | \
sed "s/REPLACE_CC/${CC}/" | \
sed "s/REPLACE_CFLAGS/${CFLAGS}/" | \
sed "s/REPLACE_CLIBFLAGS/${CLIBFLAGS}/" | \
sed "s/REPLACE_EXEEXT/${EXEEXT}/" | \
sed "s/REPLACE_LIBTARGET/${LIBTARGET}/" | \
sed "s/REPLACE_LIBEXT/${LIBEXT}/" | \
sed "s/REPLACE_RANLIB/${RANLIB}/" | \
sed "s|REPLACE_INSTALLDIR|${INSTALLDIR}|" | \
sed "s|REPLACE_LIBINSTALLDIR|${LIBINSTALLDIR}|" | \
sed "s/REPLACE_POSTFIX/${POSTFIX}/" > $OUTPUT_FILE

echo
echo
echo "Bibutils Configuration"
echo "----------------------"
echo
echo "Operating system:               $type"
echo "Library and binary type:        $LIBTYPE" 
echo "Binary installation directory:  $INSTALLDIR"
echo "Library installation directory: $LIBINSTALLDIR"
echo
echo " - If auto-identification of operating system failed, e-mail cdputnam@ucsd.edu"
echo "   with the output of the command: uname -a"
echo
echo " - Use --static or --dynamic to specify library and binary type;"
echo "   the --static option is the default"
echo
echo " - Set binary installation directory with:  --install-dir DIR"
echo
echo " - Set library installation directory with: --install-lib DIR"
echo
echo
if [ $OUTPUT_FILE = "Makefile" ] ; then
  echo "To compile,                  type: make"
  echo "To install,                  type: make install"
  echo "To make tgz package,         type: make package"
  echo "To make deb package,         type: make deb"
  echo
  echo "To clean up temporary files, type: make clean"
  echo "To clean up all files,       type: make realclean"
else
  echo "To compile,                  type: make -f $OUTPUT_FILE"
  echo "To install,                  type: make -f $OUTPUT_FILE install"
  echo "To make tgz package,         type: make -f $OUTPUT_FILE package"
  echo "To make deb package,         type: make -f $OUTPUT_FILE deb"
  echo
  echo "To clean up temporary files, type: make -f $OUTPUT_FILE clean"
  echo "To clean up all files,       type: make -f $OUTPUT_FILE realclean"
fi
echo
echo