configure

#!/bin/sh

prefix="/usr/local"
mach=`uname -m`

for opt
do
  case "$opt" in
    --prefix=*)
      prefix=${opt#*=}
      ;;
    --help|-h)
      echo "Usage: configure [options]"
      echo ""
      echo "Options:"
      /usr/bin/printf "  --help or -h            "
      echo "Display this help message"
      /usr/bin/printf "  --prefix=PREFIX         "
      echo "Top level install directory is PREFIX [$prefix]"
      exit 1
      ;;
    *)
      ;;
  esac
done

case "$mach" in
  amd64|x86_64) mach="amd64" ; target=0 ;;
  i[34567]86) mach="i386" ; target=1 ;;
  8080|i80|z80) mach="i80" ; target=2 ;;
  *) mach="C" ; target=255 ;;
esac

/usr/bin/printf "Native backend: %s\n" $mach
/usr/bin/printf "Install prefix: %s\n" $prefix
/usr/bin/printf "Please run \`make' to build\n"

cat << EOF > Makefile
# bfc Makefile

CC =		cc
CFLAGS =	-g -O2 -DTARGET=$target

PROG =	bfc
OBJS =	amd64.o bfc.o c.o cg.o dput.o i386.o i80.o

all: \${OBJS}
	\${CC} \${LDFLAGS} -o \${PROG} \${OBJS}

install:
	install -m 755 \${PROG} $prefix/bin

clean:
	rm -f \${PROG} \${OBJS}

distclean: clean
	rm -f Makefile
EOF