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5e33a2d6 |
1 | #! /bin/sh |
2 | |
3 | # Wrapper for compilers which do not understand `-c -o'. |
4 | |
5 | # Copyright 1999, 2000 Free Software Foundation, Inc. |
6 | # Written by Tom Tromey <tromey@cygnus.com>. |
7 | # |
8 | # This program is free software; you can redistribute it and/or modify |
9 | # it under the terms of the GNU General Public License as published by |
10 | # the Free Software Foundation; either version 2, or (at your option) |
11 | # any later version. |
12 | # |
13 | # This program is distributed in the hope that it will be useful, |
14 | # but WITHOUT ANY WARRANTY; without even the implied warranty of |
15 | # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
16 | # GNU General Public License for more details. |
17 | # |
18 | # You should have received a copy of the GNU General Public License |
19 | # along with this program; if not, write to the Free Software |
20 | # Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. |
21 | |
22 | # As a special exception to the GNU General Public License, if you |
23 | # distribute this file as part of a program that contains a |
24 | # configuration script generated by Autoconf, you may include it under |
25 | # the same distribution terms that you use for the rest of that program. |
26 | |
27 | # Usage: |
28 | # compile PROGRAM [ARGS]... |
29 | # `-o FOO.o' is removed from the args passed to the actual compile. |
30 | |
31 | prog=$1 |
32 | shift |
33 | |
34 | ofile= |
35 | cfile= |
36 | args= |
37 | while test $# -gt 0; do |
38 | case "$1" in |
39 | -o) |
40 | # configure might choose to run compile as `compile cc -o foo foo.c'. |
41 | # So we do something ugly here. |
42 | ofile=$2 |
43 | shift |
44 | case "$ofile" in |
45 | *.o | *.obj) |
46 | ;; |
47 | *) |
48 | args="$args -o $ofile" |
49 | ofile= |
50 | ;; |
51 | esac |
52 | ;; |
53 | *.c) |
54 | cfile=$1 |
55 | args="$args $1" |
56 | ;; |
57 | *) |
58 | args="$args $1" |
59 | ;; |
60 | esac |
61 | shift |
62 | done |
63 | |
64 | if test -z "$ofile" || test -z "$cfile"; then |
65 | # If no `-o' option was seen then we might have been invoked from a |
66 | # pattern rule where we don't need one. That is ok -- this is a |
67 | # normal compilation that the losing compiler can handle. If no |
68 | # `.c' file was seen then we are probably linking. That is also |
69 | # ok. |
70 | exec "$prog" $args |
71 | fi |
72 | |
73 | # Name of file we expect compiler to create. |
74 | cofile=`echo $cfile | sed -e 's|^.*/||' -e 's/\.c$/.o/'` |
75 | |
76 | # Create the lock directory. |
77 | # Note: use `[/.-]' here to ensure that we don't use the same name |
78 | # that we are using for the .o file. Also, base the name on the expected |
79 | # object file name, since that is what matters with a parallel build. |
80 | lockdir=`echo $cofile | sed -e 's|[/.-]|_|g'`.d |
81 | while true; do |
82 | if mkdir $lockdir > /dev/null 2>&1; then |
83 | break |
84 | fi |
85 | sleep 1 |
86 | done |
87 | # FIXME: race condition here if user kills between mkdir and trap. |
88 | trap "rmdir $lockdir; exit 1" 1 2 15 |
89 | |
90 | # Run the compile. |
91 | "$prog" $args |
92 | status=$? |
93 | |
94 | if test -f "$cofile"; then |
95 | mv "$cofile" "$ofile" |
96 | fi |
97 | |
98 | rmdir $lockdir |
99 | exit $status |