configure

#!/bin/sh

print_usage()
{
echo "
This is a simple configure script for the streamer.
It accept the following options:

    -h this help

    --with-ldlibs dir: extra LDLIBS to pass to make
    --with-ldflags dir: extra LDFLAGS to pass to make
    --with-grapes dir: path to the GRAPES libarary
    --with-ffmpeg dir: path to FFMPEG libs, needed when GRAPES was compilef with it
    --with-napa dir: path to the NAPA BASELIBS
    --with-libevent dir: path to the LIBEVENT libarary, required by the ML
    --with-net-helper: which net-helper to use (ml for the Messaging Library, udp for GRAPES UDP)
    --with-monl: use MONL, the MONitoring Library (requires ML)
    --with-io mode: choose IO/type (grapes/chunkstream)
    --with-static dir: set default build to 0:dynamic 1:halfstatic 2:static
"
}

#process options
while [ -n "$1" ] ; do
  case "$1" in
    --with-ldlibs) shift
      LDLIBS=$1  ;;
    --with-ldlibs=*)
      LDLIBS="${1#*=}" ;;

    --with-ldflags) shift
      LDFLAGS=$1  ;;
    --with-ldflags=*)
      LDFLAGS="${1#*=}" ;;

    --with-grapes) shift
      GRAPES=$1  ;;
    --with-grapes=*)
      GRAPES="${1#*=}" ;;

    --with-ffmpeg) shift
      FFMPEG_DIR=$1  ;;
    --with-ffmpeg=*)
      FFMPEG_DIR="${1#*=}" ;;

    --with-napa) shift
      NAPA=$1 ;;
    --with-napa=*)
      NAPA="${1#*=}" ;;

    --with-libevent) shift
      LIBEVENT_DIR=$1 ;;
    --with-libevent=*)
      LIBEVENT_DIR="${1#*=}" ;;

    --with-net-helper) shift
      NET_HELPER=$1 ;;
    --with-net-helper=*)
      NET_HELPER="${1#*=}" ;;

    --with-monl)
      MONL=1 ;;

    --with-io) shift
      IO=$1 ;;
    --with-io=*)
      IO="${1#*=}" ;;

    --with-static) shift
      STATIC=$1 ;;
    --with-static=*)
      STATIC="${1#*=}" ;;

    -h) print_usage
      exit 0 ;;
    *)
      echo "Invalid option: $1" >&2
      print_usage
      exit 1
      ;;
  esac
  shift
done

[ -d "$GRAPES" ] || { echo "you need GRAPES to build the Streamer"; exit 1; }

cat >config.mak.tmp <<END
LDLIBS+=$LDLIBS
LDFLAGS+=$LDFLAGS
FFMPEG_DIR?=$FFMPEG_DIR
GRAPES?=$GRAPES
NAPA?=$NAPA
LIBEVENT_DIR?=$LIBEVENT_DIR
NET_HELPER?=$NET_HELPER
MONL?=$MONL
END

[ -n "$IO" ] && echo "IO?=$IO" >>config.mak.tmp
[ -n "$STATIC" ] && echo "STATIC?=$STATIC" >>config.mak.tmp

diff config.mak.tmp config.mak >/dev/null 2>/dev/null || cp config.mak.tmp config.mak
rm -f config.mak.tmp