#! /usr/bin/perl

# this program will make the vocal-buildpaths tool.  


# here is a comment about usage, etc:

# OK.  I just hacked up a solution to this one.  look at
# vocal/build/mkbuildpaths on HEAD.  it should create a script called
# vocal-buildpaths which works like gtk-config -- you can pass it arguments 
# which will ask it to spew out the right includes, etc.  e.g.
  
#         ./vocal-buildpaths --sip-cflags
  
# or   
  
#         ./vocal-buildpaths --sip-ldflags

# these are hardwired to whichever copy of vocal you're using, so make
# sure you run mkbuildpaths if you happen to move your vocal tree around.   

# one problem with these is that they get more complex if you need RTP (e.g.
# if you're trying to build a user agent w/ audio support) or a full VOCAL
# app -- those cases aren't implemented yet.
     
# if you're interested, the way these are implemented is that mkbuildpaths
# invokes the makefiles to generate the proper include path information from
# the package magic.



$vocal_buildpaths = "vocal-buildpaths";

open(F, ">$vocal_buildpaths") || die "cannot write to vocal-buildpaths: $!";
print F <<EOF
#! /bin/sh

# this program is automatically generated!  DO NOT EDIT!

usage()
{
    cat <<USAGE_INFO
Usage: vocal-buildpaths [options]
Options:
    [--sip-cflags]
    [--sip-ldflags]
USAGE_INFO
    exit 1
}

EOF
  ;

chomp($sip_cflags = `make -f Makefile.buildpaths BUILD=\`pwd\` PACKAGES="SIP SDP2 SIPMGCP UTIL LIBCEXT LIBXML" build_cflags`);

chomp($sip_ldflags = `make -f Makefile.buildpaths BUILD=\`pwd\` PACKAGES="SIP SDP2 SIPMGCP UTIL LIBCEXT LIBXML PTHREAD" build_ldflags`);

$sip_cflags =~ s/\/build\/..\//\//g;
$sip_ldflags =~ s/\/build\/..\//\//g;

print F <<EOJ

cflags=0
ldflags=0

while [ \$# -gt 0 ] ; do

    case \$1 in
        --sip-cflags)
            cflags="$sip_cflags"
            ;;
        --sip-ldflags)
            ldflags="$sip_ldflags"
            ;;
	*)
	    usage
	    ;;
    esac
    shift
done

if [ "\$cflags" == "0" -a "\$ldflags" == "0" ] ; then
    usage
fi

if [ "\$cflags" != "0" ] ; then
    flags=\$cflags
fi

if [ "\$ldflags" != "0" ] ; then
    flags="\$flags \$ldflags"
fi

echo \$flags

EOJ
  ;



close(F);
chmod 0755, $vocal_buildpaths;
