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initial attempt at building a shared library
author Carl Byington <carl@five-ten-sg.com>
date Sat, 13 Sep 2008 20:15:40 -0700
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94:997cf1373f9e 95:ff1743cbe4aa
1 #! /bin/sh
2 # Wrapper for compilers which do not understand `-c -o'.
3
4 scriptversion=2004-09-10.20
5
6 # Copyright (C) 1999, 2000, 2003, 2004 Free Software Foundation, Inc.
7 # Written by Tom Tromey <tromey@cygnus.com>.
8 #
9 # This program is free software; you can redistribute it and/or modify
10 # it under the terms of the GNU General Public License as published by
11 # the Free Software Foundation; either version 2, or (at your option)
12 # any later version.
13 #
14 # This program is distributed in the hope that it will be useful,
15 # but WITHOUT ANY WARRANTY; without even the implied warranty of
16 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 # GNU General Public License for more details.
18 #
19 # You should have received a copy of the GNU General Public License
20 # along with this program; if not, write to the Free Software
21 # Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
22
23 # As a special exception to the GNU General Public License, if you
24 # distribute this file as part of a program that contains a
25 # configuration script generated by Autoconf, you may include it under
26 # the same distribution terms that you use for the rest of that program.
27
28 # This file is maintained in Automake, please report
29 # bugs to <bug-automake@gnu.org> or send patches to
30 # <automake-patches@gnu.org>.
31
32 case $1 in
33 '')
34 echo "$0: No command. Try \`$0 --help' for more information." 1>&2
35 exit 1;
36 ;;
37 -h | --h*)
38 cat <<\EOF
39 Usage: compile [--help] [--version] PROGRAM [ARGS]
40
41 Wrapper for compilers which do not understand `-c -o'.
42 Remove `-o dest.o' from ARGS, run PROGRAM with the remaining
43 arguments, and rename the output as expected.
44
45 If you are trying to build a whole package this is not the
46 right script to run: please start by reading the file `INSTALL'.
47
48 Report bugs to <bug-automake@gnu.org>.
49 EOF
50 exit 0
51 ;;
52 -v | --v*)
53 echo "compile $scriptversion"
54 exit 0
55 ;;
56 esac
57
58 ofile=
59 cfile=
60 eat=
61
62 for arg
63 do
64 if test -n "$eat"; then
65 eat=
66 else
67 case $1 in
68 -o)
69 # configure might choose to run compile as `compile cc -o foo foo.c'.
70 # So we strip `-o arg' only if arg is an object.
71 eat=1
72 case $2 in
73 *.o | *.obj)
74 ofile=$2
75 ;;
76 *)
77 set x "$@" -o "$2"
78 shift
79 ;;
80 esac
81 ;;
82 *.c)
83 cfile=$1
84 set x "$@" "$1"
85 shift
86 ;;
87 *)
88 set x "$@" "$1"
89 shift
90 ;;
91 esac
92 fi
93 shift
94 done
95
96 if test -z "$ofile" || test -z "$cfile"; then
97 # If no `-o' option was seen then we might have been invoked from a
98 # pattern rule where we don't need one. That is ok -- this is a
99 # normal compilation that the losing compiler can handle. If no
100 # `.c' file was seen then we are probably linking. That is also
101 # ok.
102 exec "$@"
103 fi
104
105 # Name of file we expect compiler to create.
106 cofile=`echo "$cfile" | sed -e 's|^.*/||' -e 's/\.c$/.o/'`
107
108 # Create the lock directory.
109 # Note: use `[/.-]' here to ensure that we don't use the same name
110 # that we are using for the .o file. Also, base the name on the expected
111 # object file name, since that is what matters with a parallel build.
112 lockdir=`echo "$cofile" | sed -e 's|[/.-]|_|g'`.d
113 while true; do
114 if mkdir "$lockdir" >/dev/null 2>&1; then
115 break
116 fi
117 sleep 1
118 done
119 # FIXME: race condition here if user kills between mkdir and trap.
120 trap "rmdir '$lockdir'; exit 1" 1 2 15
121
122 # Run the compile.
123 "$@"
124 ret=$?
125
126 if test -f "$cofile"; then
127 mv "$cofile" "$ofile"
128 fi
129
130 rmdir "$lockdir"
131 exit $ret
132
133 # Local Variables:
134 # mode: shell-script
135 # sh-indentation: 2
136 # eval: (add-hook 'write-file-hooks 'time-stamp)
137 # time-stamp-start: "scriptversion="
138 # time-stamp-format: "%:y-%02m-%02d.%02H"
139 # time-stamp-end: "$"
140 # End: