#!/bin/sh

prefix=/opt/overflow
exec_prefix=${prefix}

bindir=${exec_prefix}/bin
sbindir=${exec_prefix}/sbin
libexecdir=${exec_prefix}/libexec
datadir=${prefix}/share
sysconfdir=${prefix}/etc
sharedstatedir=${prefix}/com
localstatedir=${prefix}/var
libdir=${exec_prefix}/lib
infodir=${prefix}/info
mandir=${prefix}/man
includedir=${prefix}/include

pkgdatadir=${datadir}/Overflow
pkglibdir=${libdir}/Overflow
pkgincludedir=${includedir}/Overflow
MODULE_VERSION=Overflow-0.4.3
module_dirs="$libdir"

DEFS=" -DLINUX=1 -DPROTOTYPES=1 -DHAVE_SEMAPHORE_H=1 -DHAVE_HASH_MAP=1 -DHAVE_LIBM=1 -DHAVE_LIBDL=1 -D_REENTRANT=1 -DHAVE_FFTW=1 -DHAVE_PTHREAD_CANCEL=1 -DINSTALL_PREFIX=\"/opt/overflow\" -DTOOLBOX_PATH=\"/opt/overflow/toolbox\" "
LIBS="-ldl -lm  -lpthread "
LDFLAGS=""

# stolen from autoconf
if (echo "testing\c"; echo 1,2,3) | grep c >/dev/null; then
  if (echo -n testing; echo 1,2,3) | sed s/-n/xn/ | grep xn >/dev/null; then
    ac_n= ac_c='
' ac_t='	'
  else
    ac_n=-n ac_c= ac_t=
  fi
else
  ac_n= ac_c='\c' ac_t=
fi

#for extra in `echo $GNOME_PATH  | sed 's/:/ /g'`; do
#    module_dirs="$extra/lib:$module_dirs"
#done
#for extra in `echo $GNOME_LIBCONFIG_PATH  | sed 's/:/ /g'`; do
#    module_dirs="$extra:$module_dirs"
#done

usage()
{
    exit_code=$1

    cat <<EOF
Usage: overflow-config [OPTION]... [LIBRARY]...

Generic options
  --version	output gnome version information.
  --modversion  output the module version information.
  --help	display this help and exit.

Compilation support options
  --cflags	print pre-processor and compiler flags
  --libs	print library linking information
  --libs-only-L	only print the -L/-R part of --libs
  --libs-only-l only print the -l part of --libs

Install directories gnome-libs was configured to
  --prefix  --exec-prefix  --bindir  --sbindir  --libexecdir  --datadir
  --sysconfdir  --sharedstatedir  --localstatedir  --libdir  --infodir
  --mandir  --includedir

Known values for LIBRARY are:

    libflow        (calls glib-config)
    audio_blocks   (to be used with orbit-idl)
    config         (output the stuff found by autoconf)

EOF
    exit $exit_code
}

if test $# -eq 0; then
    usage 1
fi

cflags=false
libs_L=false
libs_l=false
modversion=false

while test $# -gt 0; do
    case "$1" in
    -*=*) optarg=`echo "$1" | sed 's/[-_a-zA-Z0-9]*=//'` ;;
    *) optarg= ;;
    esac

    case $1 in
    --version)
	echo Overflow 0.4.3
	exit 0
	;;
    --exec-prefix)
	echo $exec_prefix
	exit 0
	;;
    --prefix)
	echo $prefix
	exit 0
	;;
    --*dir)
	dirname=\$`echo $1 | sed -e 's,^--,,'`
	dirname=`eval echo $dirname`
	test -z "$dirname" && exit 1
	echo $dirname
	exit 0
	;;
    --help)
	usage 0
	;;
    --cflags)
       	cflags=true
       	;;
    --libs)
       	libs_L=true
	libs_l=true
       	;;
    --libs-only-L)
	libs_L=true
	;;
    --libs-only-l)
	libs_l=true
	;;
    --modversion)
        modversion=true
	;;
    --*)
	usage 1
	;;
    libflow)
	the_libs="$the_libs -L$prefix/lib -lflow"
	the_flags="$the_flags -I$prefix/include"
	;;
    audio_blocks)
	the_libs="$the_libs -L$prefix/lib -lflow -laudio_blocks"
	the_flags="$the_flags -I$prefix/include"
	;;
    config)
	the_libs="$the_libs $LD_FLAGS $LIBS"
	the_flags="$the_flags $DEFS"
	;;
    *)
        error=true
        for dir in `echo $module_dirs | sed 's/:/ /g'`; do
   	    cnf_sh=${dir}/${1}Conf.sh
	    if test -f ${cnf_sh}; then
    		. ${cnf_sh}
    		up_name=`echo $1 | tr a-z A-Z`
    		cnf_libdir=\$${up_name}_LIBDIR
    		cnf_libs=\$${up_name}_LIBS
    		cnf_flags=\$${up_name}_INCLUDEDIR
    		the_libs="$the_libs `eval echo $cnf_libdir` `eval echo $cnf_libs`"
    		the_flags="$the_flags `eval echo $cnf_flags`"
		error=false
		break
    	    fi
        done
	if $error; then
	    echo Unknown library \`$1\' 1>&2
	fi
	;;
    esac
    shift
done

if $cflags; then
    all_flags="$the_flags"
fi

if $libs_L || $libs_l; then
    all_flags="$all_flags $the_libs"
fi

if $modversion; then
    echo $MODULE_VERSION
    exit 0
fi

if test -z "$all_flags" || test "x$all_flags" = "x "; then
    exit 1
fi

# Straight out any possible duplicates, but be careful to
# get `-lfoo -lbar -lbaz' for `-lfoo -lbaz -lbar -lbaz'
other_flags=
lib_L_flags=
rev_libs=
for i in $all_flags; do
    case "$i" in
    # a library, save it for later, in reverse order
    -l*) rev_libs="$i $rev_libs" ;;
    -L*|-R*)
	if $libs_L; then
	    case " $lib_L_flags " in
	    *\ $i\ *) ;;			# already there
	    *) lib_L_flags="$lib_L_flags $i" ;;	# add it to output
	    esac 
	fi;;
    *)
	case " $other_flags " in
	*\ $i\ *) ;;				# already there
	*) other_flags="$other_flags $i" ;;	# add it to output
        esac ;;
    esac
done

ord_libs=
if $libs_l; then
    for i in $rev_libs; do
	case " $ord_libs " in
	*\ $i\ *) ;;			# already there
	*) ord_libs="$i $ord_libs" ;;	# add it to output in reverse order
	esac
    done
fi

echo $other_flags $lib_L_flags $ord_libs

exit 0
