#!/bin/sh
# @configure_input@

work_dir=`pwd`
script_dir=`dirname $0`; cd ${script_dir}; script_dir=`pwd`
prefix="${script_dir}/.."; cd ${prefix}; prefix=`pwd`;
prefix_w=`@CYGPATH_W@ ${prefix}`
projects_w=`@CYGPATH_W@ ${prefix}/lib/gnat`
cd ${work_dir}

modules="frontends backends"

usage()
{
   cat <<EOF
Usage: ocarina-config [OPTIONS]
Options:
        No option:
            Output all the flags (compiler and linker) required
            to compile your program.
        [--prefix[=DIR]]
            Output the directory in which Ocarina architecture-independent 
           files are installed, or set this directory to DIR.
        [--exec-prefix[=DIR]]
            Output the directory in which Ocarina architecture-dependent 
           files are installed, or set this directory to DIR.
        [--version|-v]
            Output the version of Ocarina.
        [--config]
            Output Ocarina's configuration parameters.
        [--runtime[=<Runtime_Name>]]
            Checks the validity and the presence of the given runtime and 
            then, outputs its path. Only one runtime can be requested at 
            a time. If no runtime name is given, outputs the root directory
            of all runtimes.
        [--libs]
            Output the linker flags to use for Ocarina.
        [--projects]
            Output the path to GNAT Project files for Ocarina
        [--properties]
            Output the location of the standard property file.
        [--resources]
            Output the location of resource files 
            (typically the standard properties)
        [--cflags]
            Output the compiler flags to use for Ocarina.
        [--help]
            Output this message
EOF
}

exec_prefix="${prefix}"
exec_prefix_w="${prefix_w}"
includedir="${prefix}/include"
includedir_w="${prefix_w}/include"
libdir="${exec_prefix}/lib"
libdir_w="${exec_prefix_w}/lib"
datadir="${prefix}/share"
datadir_w="${prefix_w}/share"

ocarina_dir="-aI${includedir_w}/ocarina -aO${libdir_w}/ocarina"
ocarina_lib="-L${libdir_w} -locarina-config -locarina-transfo"

runtime_set=false

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

  case $1 in
    --help|-h)
      usage 1>&2
      exit 1
      ;;
    --prefix=*)
      prefix=${optarg};
      if test "x${exec_prefix_set}" = x ; then
	  exec_prefix=${prefix}
      fi
      ;;
    --prefix)
      echo_prefix=true
      ;;
    --exec-prefix=*)
      exec_prefix=${optarg}
      ;;
    --exec-prefix)
      echo_exec_prefix=true
      ;;
    --version|-v)
      echo "Ocarina @VERSION@"
      exit 0
      ;;
    --config)
      echo "Modules included : ${modules}" 
      exit 0
      ;;  
    --libs)
      echo_libs=true
      ;;
    --projects)
      echo_projects=true
      ;;

    --runtime=*)
      requested_runtime=${optarg}

      if test ! -d "${includedir}/ocarina/runtime/${requested_runtime}"; then
	  echo "Runtime \"${requested_runtime}\" is not installed"
	  echo ""
	  usage 1>&2
	  exit 1
      fi

      if test x"${runtime_set}" = x"true"; then
	  echo "Only one --runtime=* is allowed"
	  usage 1>&2
	  exit 1
      fi

      ocarina_runtime="${includedir_w}/ocarina/runtime/${requested_runtime}"
      runtime_set=true
      ;;

    --runtime)
      if test x"${runtime_set}" = x"true"; then
	  echo "Only one --runtime=* is allowed"
	  usage 1>&2
	  exit 1
      fi

      ocarina_runtime="${includedir_w}/ocarina/runtime"
      runtime_set=true
      ;;

    --properties)
      echo ${datadir_w}/ocarina/standard_properties.aadl
      exit 0
      ;;
    --resources)
      echo ${datadir_w}/ocarina
      exit 0
      ;;
    --cflags)
      echo_cflags=true
      ;;
    *)
      usage 1>&2
      exit 1
      ;;
  esac
  shift
done

for P in ${modules}
do
    ocarina_lib="${ocarina_lib} -locarina-${P}"
done

# For some architectures (x86-linux-gnu...), it is important that
# "-locarina" is the last one to be included because other libraries
# (ocarina-backend.a...) use symbols from this library.

ocarina_lib="${ocarina_lib} -locarina"

if test ! x"${echo_prefix}" = x"true" \
   -a ! x"${echo_exec_prefix}" = x"true" \
   -a ! x"${echo_cflags}" = x"true" \
   -a ! x"${echo_libs}" = x"true" \
   -a ! x"${echo_projects}" = x"true" \
   -a ! x"${runtime_set}" = x"true"; 
then
   echo ${ocarina_dir} -largs ${ocarina_lib}
fi

if test x"${echo_prefix}" = x"true" ; then
    echo ${prefix_w}
fi
if test x"${echo_exec_prefix}" = x"true" ; then
    echo ${exec_prefix_w}
fi

if test x"${echo_cflags}" = x"true"; then
    echo ${ocarina_dir} 
fi

if test x"${echo_libs}" = x"true"; then
    echo ${ocarina_lib}
fi

if test x"${echo_projects}" = x"true"; then
    echo ${projects_w}
fi

if test x"${runtime_set}" = x"true"; then
    echo ${ocarina_runtime}
fi