#!/bin/sh

#

# A helper script for Makeasm.am .asm.lo rule.

# Copyright 2001 Free Software Foundation, Inc.

#

#  This file is part of the GNU MP Library.

#

#  The GNU MP Library is free software; you can redistribute it and/or modify

#  it under the terms of either:

#

#    * the GNU Lesser General Public License as published by the Free

#      Software Foundation; either version 3 of the License, or (at your

#      option) any later version.

#

#  or

#

#    * the GNU General Public License as published by the Free Software

#      Foundation; either version 2 of the License, or (at your option) any

#      later version.

#

#  or both in parallel, as here.

#

#  The GNU MP Library is distributed in the hope that it will be useful, but

#  WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY

#  or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License

#  for more details.

#

#  You should have received copies of the GNU General Public License and the

#  GNU Lesser General Public License along with the GNU MP Library.  If not,

#  see https://www.gnu.org/licenses/.

# Usage: m4-ccas --m4=M4 CC ... file.asm ...

#

# Process file.asm with the given M4 plus any -D arguments, then

# assemble with the given CC plus all arguments.

#

# The M4 command must be in a single --m4= argument, and will be split

# on whitespace.  When CC is invoked file.asm is replaced with a

# temporary .s file which is the M4 output.

#

# To allow parallel builds, the temp file name is based on the .asm

# file name, which will be the output object filename for all uses we

# put this script to.

M4=

CC=

DEFS=

ASM=

SEEN_O=no

for i in "$@"; do

  case $i in

    --m4=*)

      M4=`echo "$i" | sed 's/^--m4=//'`

      ;;

    -D*)

      DEFS="$DEFS $i"

      CC="$CC $i"

      ;;

    *.asm)

      if test -n "$ASM"; then

        echo "Only one .asm file permitted"

        exit 1

      fi

      BASENAME=`echo "$i" | sed -e 's/\.asm$//' -e 's/^.*[\\/:]//'`

      TMP=tmp-$BASENAME.s

      ASM=$i

      CC="$CC $TMP"

      ;;

    -o)

      SEEN_O=yes

      CC="$CC $i"

      ;;

    *)

      CC="$CC $i"

      ;;

  esac

done

if test -z "$M4"; then

  echo "No --m4 specified"

  exit 1

fi

if test -z "$ASM"; then

  echo "No .asm specified"

  exit 1

fi

# Libtool adds it's own -o when sending output to .libs/foo.o, but not

# when just wanting foo.o in the current directory.  We need an

# explicit -o in both cases since we're assembling tmp-foo.s.

#

if test $SEEN_O = no; then

  CC="$CC -o $BASENAME.o"

fi

echo "$M4 $DEFS $ASM >$TMP"

$M4 $DEFS $ASM >$TMP || exit

echo "$CC"

$CC || exit

# Comment this out to preserve .s intermediates

rm -f $TMP