1#! /bin/sh
2# $MirOS: src/gnu/share/compile,v 1.3 2008/05/03 22:25:39 tg Exp $
3# $miros: contrib/gnu/automake/lib/compile,v 1.4 2008/05/02 23:31:52 tg Exp $
4#-
5# Wrapper for compilers which do not understand `-c -o'.
6
7scriptversion=2005-02-03.08
8
9# Copyright (C) 1999, 2000, 2003, 2004, 2005 Free Software Foundation, Inc.
10# Written by Tom Tromey <tromey@cygnus.com>.
11#
12# This program is free software; you can redistribute it and/or modify
13# it under the terms of the GNU General Public License as published by
14# the Free Software Foundation; either version 2, or (at your option)
15# any later version.
16#
17# This program is distributed in the hope that it will be useful,
18# but WITHOUT ANY WARRANTY; without even the implied warranty of
19# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
20# GNU General Public License for more details.
21#
22# You should have received a copy of the GNU General Public License
23# along with this program; if not, write to the Free Software
24# Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
25
26# As a special exception to the GNU General Public License, if you
27# distribute this file as part of a program that contains a
28# configuration script generated by Autoconf, you may include it under
29# the same distribution terms that you use for the rest of that program.
30
31# This file is maintained in Automake, please report
32# bugs to <bug-automake@gnu.org> or send patches to
33# <automake-patches@gnu.org>.
34
35case $1 in
36  '')
37     echo "$0: No command.  Try \`$0 --help' for more information." 1>&2
38     exit 1;
39     ;;
40  -h | --h*)
41    cat <<\EOF
42Usage: compile [--help] [--version] PROGRAM [ARGS]
43
44Wrapper for compilers which do not understand `-c -o'.
45Remove `-o dest.o' from ARGS, run PROGRAM with the remaining
46arguments, and rename the output as expected.
47
48If you are trying to build a whole package this is not the
49right script to run: please start by reading the file `INSTALL'.
50
51Report bugs to <bug-automake@gnu.org>.
52EOF
53    exit $?
54    ;;
55  -v | --v*)
56    echo "compile $scriptversion"
57    exit $?
58    ;;
59esac
60
61ofile=
62cfile=
63eat=
64
65for arg
66do
67  if test -n "$eat"; then
68    eat=
69  else
70    case $1 in
71      -o)
72	# configure might choose to run compile as `compile cc -o foo foo.c'.
73	# So we strip `-o arg' only if arg is an object.
74	eat=1
75	case $2 in
76	  *.o | *.obj)
77	    ofile=$2
78	    ;;
79	  *)
80	    set x "$@" -o "$2"
81	    shift
82	    ;;
83	esac
84	;;
85      *.c)
86	cfile=$1
87	set x "$@" "$1"
88	shift
89	;;
90      *)
91	set x "$@" "$1"
92	shift
93	;;
94    esac
95  fi
96  shift
97done
98
99if test -z "$ofile" || test -z "$cfile"; then
100  # If no `-o' option was seen then we might have been invoked from a
101  # pattern rule where we don't need one.  That is ok -- this is a
102  # normal compilation that the losing compiler can handle.  If no
103  # `.c' file was seen then we are probably linking.  That is also
104  # ok.
105  exec "$@"
106fi
107
108# Name of file we expect compiler to create.
109cofile=`echo "$cfile" | sed -e 's|^.*/||' -e 's/\.c$/.o/'`
110
111# Create the lock directory.
112# Note: use `[/.-]' here to ensure that we don't use the same name
113# that we are using for the .o file.  Also, base the name on the expected
114# object file name, since that is what matters with a parallel build.
115lockdir=`echo "$cofile" | sed -e 's|[/.-]|_|g'`.d
116while true; do
117  if mkdir "$lockdir" >/dev/null 2>&1; then
118    break
119  fi
120  sleep 1
121done
122# FIXME: race condition here if user kills between mkdir and trap.
123trap "rmdir '$lockdir'; exit 1" 1 2 15
124
125# Run the compile.
126"$@"
127ret=$?
128
129if test -f "$cofile"; then
130  mv "$cofile" "$ofile"
131elif test -f "${cofile}bj"; then
132  mv "${cofile}bj" "$ofile"
133fi
134
135rmdir "$lockdir"
136exit $ret
137
138# Local Variables:
139# mode: shell-script
140# sh-indentation: 2
141# eval: (add-hook 'write-file-hooks 'time-stamp)
142# time-stamp-start: "scriptversion="
143# time-stamp-format: "%:y-%02m-%02d.%02H"
144# time-stamp-end: "$"
145# End:
146