#!/bin/sh
#
# Mach Operating System
# Copyright (c) 1991,1990 Carnegie Mellon University
# All Rights Reserved.
#
# Permission to use, copy, modify and distribute this software and its
# documentation is hereby granted, provided that both the copyright
# notice and this permission notice appear in all copies of the
# software, derivative works or modified versions, and any portions
# thereof, and that both notices appear in supporting documentation.
#
# CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS"
# CONDITION.  CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND FOR
# ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
#
# Carnegie Mellon requests users of this software to return to
#
#  Software Distribution Coordinator  or  Software.Distribution@CS.CMU.EDU
#  School of Computer Science
#  Carnegie Mellon University
#  Pittsburgh PA 15213-3890
#
# any improvements or extensions that they make and grant Carnegie Mellon
# the rights to redistribute these changes.
#

PACKAGE=@PACKAGE@
VERSION=@VERSION@

prefix=@prefix@
exec_prefix=@exec_prefix@
libexecdir=@libexecdir@
migcom=${MIGDIR-@libexecdir@}/${MIGCOM-@MIGCOM@}

# The expansion of TARGET_CC might refer to ${CC}, so make sure it is defined.
default_cc="@CC@"
CC="${CC-${default_cc}}"
default_cpp="@TARGET_CC@ -E -x c -undef -ansi"
cpp="${CPP-${default_cpp}}"

cppflags=
migflags=
files=


# prj_quote_sh() is from Paul Jarc's prjlibs available at
# <URL:http://code.dogmap.org/prjlibs/>.

prj_quote_sh() {
  case $1 in
    '') echo "''";;
    *[!%+,./0123456789:@ABCDEFGHIJKLMNOPQRSTUVWXYZ_abcdefghijklmnopqrstuvwxyz-]*) sed "
s/'/'\\\\''/g
1s/^/'/
\$s/\$/'/
" <<EOT
$1
EOT
      ;;
    -*) cat <<EOT
$1
EOT
      ;;
    *) echo "$1";;
  esac
}


# If an argument to this shell script that will be passed to migcom contains
# whitespace, then we will screw up: migcom will see it as multiple arguments.
# Arguments that are only passed to $cpp are fine, though.
# `mig -DFOO=B\ A\ R ...' works.
#
# As a special hack, if -i is specified first we don't pass -user to migcom.
# We do use the -user argument for the dependencies.
# In this case, the -user argument can have whitespace.

until [ $# -eq 0 ]
do
    case "$1" in
	--version ) echo "GNU ${PACKAGE} version ${VERSION}"; exit 0 ;;
	--help ) progname=`echo mig | sed @program_transform_name@`
		 echo "\
Usage: $progname [OPTION]... [FILE]...
This is the GNU implementation of the Mach interface generator \`MiG',
which Mach RPC stubs from \`.defs' files.

  -r              use msg_rpc [default]
  -R              use msg_send
  -q		  suppress warning statements
  -Q		  print warning statements [default]
  -v		  verbose
  -V		  compile silently [default]
  -s		  generate symbol table in Server.c code
  -S		  suppress symbol table in Server.c code [default]
  -i		  generate separate files for each routine
  -server FILE	  generate server stubs in FILE
  -user FILE	  generate user stubs in FILE
  -header FILE	  generate stub header file in FILE
  -list FILE	  generate list of RPC names and message IDs in FILE
  -n		  suppress default output file names, create only given files
  -migcom	  use migcom instead of CPP

Any switches not listed are passed on to the preprocessor, invoked by:
	${cpp}

Report bugs to <bug-hurd@gnu.org>.  Request assistance at <help-hurd@gnu.org>.\
"; exit 0 ;;

	-[qQvVtTrRsSn] ) migflags="$migflags $1"; shift;;
	-i	) sawI=1; migflags="$migflags $1 $2"; shift; shift;;
	-user   ) user="$2"; if [ ! "${sawI-}" ]; then migflags="$migflags $1 $2"; fi; shift; shift;;
	-server ) server="$2"; migflags="$migflags $1 $2"; shift; shift;;
	-header ) header="$2"; migflags="$migflags $1 $2"; shift; shift;;
	-sheader ) sheader="$2"; migflags="$migflags $1 $2"; shift; shift;;
	-iheader ) iheader="$2"; migflags="$migflags $1 $2"; shift; shift;;
	-list ) list="$2"; migflags="$migflags $1 $2"; shift; shift;;
	-prefix | -subrprefix ) migflags="$migflags $1 $2"; shift; shift;;

	-MD ) sawMD=1; cppflags="$cppflags $1"; shift;;
	-imacros | -isystem ) cppflags="$cppflags $1 `prj_quote_sh "$2"`"; shift; shift;;
	-cc) cpp="$2"; shift; shift;;
	-migcom) migcom="$2"; shift; shift;;
	-* ) cppflags="$cppflags `prj_quote_sh "$1"`"; shift;;
	* ) files="$files $1"; shift;;
    esac
done

for file in $files
do
    eval "$cpp $cppflags $file | $migcom $migflags || exit"

    if [ $sawMD ]
    then
	base="`basename "$file"|sed 's%[.][^.]*$%%'`"
	deps=
	rheader="${header-${base}.h}"
	if [ "$rheader" != /dev/null ]; then deps="$deps $rheader"; fi
	ruser="${user-${base}User.c}"
	if [ "$ruser" != /dev/null ]; then
		if [ $sawI ]; then
		    for un in $ruser
		    do
			deps="$deps $un"
		    done
		else
		    deps="$deps $ruser"
		fi
	fi
	rserver="${server-${base}Server.c}"
	if [ "$rserver" != /dev/null ]; then deps="$deps $rserver"; fi
	rsheader="${sheader-/dev/null}"
	if [ "$rsheader" != /dev/null ]; then deps="$deps $rsheader"; fi
	riheader="${iheader-/dev/null}"
	if [ "$riheader" != /dev/null ]; then deps="$deps $riheader"; fi
	rlist="${list-/dev/null}"
	if [ "$rlist" != /dev/null ]; then deps="$deps $rlist"; fi
	sed 's%^[^:]*:%'"${deps}"':%' <"${base}.d" >"${base}-mig.d"
	rm -f ${base}.d
    fi
done

exit 0