configure

#!/bin/sh

check_existence() {
    command -v "$1" >/dev/null 2>&1 || {
        echo 'error: '"$1"' not found'
        ERROR=1
    }
}

check_existence install
check_existence bdftopcf
check_existence gzip
check_existence rm

[ -n "$ERROR" ] && exit 1;

PREFIX="/usr/local"
SRCDIR=""
OBJDIR=""
INSTALLDIR=""
MAKEVAR="gnu"

while true ; do
    case "$1" in
        --prefix=*)
            PREFIX="${1#*=}"; shift ;;
        --objdir=*)
            OBJDIR="${1#*=}"; shift ;;
        --srcdir=*)
            SRCDIR="${1#*=}"; shift ;;
        --bsd-make)
            MAKEVAR="bsd"; shift ;;
        --installdir=*)
            INSTALLDIR="${1#*=}"; shift ;;
        '')
            break ;;
        *)
            exit 1 ;;
    esac
done

if [ "$MAKEVAR" = bsd ]; then
    CURDIR="\$(.CURDIR)"
    SHELLDECL=".SHELL: name=sh path=/bin/sh"
    SRCDECL=".PATH.bdf: \$(srcdir)"
    BUILDRULE=".bdf.pcf.gz:"
    COMPILED="\$(PCF)"
    INSTALLED="\$(PCF:@.FILE.@\$(DESTDIR)\$(installdir)/\$(.FILE.)@)"

    setobjdecl() { OBJDECL=".OBJDIR: \$(objdir:U$1)"; }
else
    CURDIR="\$(CURDIR)"
    SHELLDECL="SHELL = /bin/sh"
    SRCDECL="vpath %.bdf \$(srcdir)"
    BUILDRULE="\$(objdir)/%.pcf.gz: %.bdf"
    COMPILED="\$(addprefix \$(objdir)/, \$(PCF))"
    INSTALLED="\$(addprefix \$(DESTDIR)\$(installdir)/, \$(PCF))"

    setobjdecl() { OBJDECL="objdir = $1"; }
fi

case "$SRCDIR" in
	'') SRCDIR="$CURDIR/bdf" ;;
	/*) ;;
	*)  SRCDIR="\$(prefix)/src/$SRCDIR" ;;
esac

case "$OBJDIR" in
	'') mkdir -p `pwd`/pcf
        OBJDIR="$CURDIR/pcf"
        ;;
	/*) mkdir -p "$OBJDIR"
        ;;
	*)  mkdir -p "$PREFIX/obj/$OBJDIR"
        OBJDIR="\$(prefix)/obj/$OBJDIR"
        ;;
esac

setobjdecl "$OBJDIR"

case "$INSTALLDIR" in
	'') INSTALLDIR="\$(fontdir)/misc" ;;
	/*) ;;
	*)  INSTALLDIR="\$(fontdir)/$INSTALLDIR" ;;
esac

cat << EOF > Makefile
$SHELLDECL

.PHONY: all clean install uninstall
.SUFFIXES:
.SUFFIXES: .bdf .pcf.gz

prefix = $PREFIX
srcdir = $SRCDIR
datarootdir = \$(prefix)/share
fontdir = \$(datarootdir)/fonts
installdir = $INSTALLDIR

$SRCDECL
$OBJDECL

PCF = ib16x16u.pcf.gz ib16x8u.pcf.gz ib8x16u.pcf.gz ib8x8u.pcf.gz \\
      ic16x16u.pcf.gz ic8x16u.pcf.gz ic8x8u.pcf.gz icl16x16u.pcf.gz \\
      icl8x16u.pcf.gz icl8x8u.pcf.gz ie16x14u.pcf.gz ie18x14u.pcf.gz \\
      ie8x14u.pcf.gz ie9x14u.pcf.gz im9x14u.pcf.gz iv16x16u.pcf.gz \\
      iv18x16u.pcf.gz iv8x16u.pcf.gz iv9x16u.pcf.gz

COMPILED = $COMPILED
INSTALLED = $INSTALLED

all: \$(COMPILED)

clean:
	rm -f \$(COMPILED)

install: all
	install -dm755 \$(DESTDIR)\$(installdir)
	install -m644 \$(COMPILED) \$(DESTDIR)\$(installdir)

uninstall:
	rm -f \$(INSTALLED)

$BUILDRULE
	bdftopcf \$< | gzip > \$@

EOF