scripts/compile

   1 #! /bin/sh
   2 # Wrapper for compilers which do not understand `-c -o'.
   3
   4 scriptversion=2005-05-14.22
   5
   6 # Copyright (C) 1999, 2000, 2003, 2004, 2005 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 3, 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, see <http://www.gnu.org/licenses/>.
  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 # This file is maintained in Automake, please report
  28 # bugs to <bug-automake@gnu.org> or send patches to
  29 # <automake-patches@gnu.org>.
  30
  31 case $1 in
  32   '')
  33      echo "$0: No command.  Try \`$0 --help' for more information." 1>&2
  34      exit 1;
  35      ;;
  36   -h | --h*)
  37     cat <<\EOF
  38 Usage: compile [--help] [--version] PROGRAM [ARGS]
  39
  40 Wrapper for compilers which do not understand `-c -o'.
  41 Remove `-o dest.o' from ARGS, run PROGRAM with the remaining
  42 arguments, and rename the output as expected.
  43
  44 If you are trying to build a whole package this is not the
  45 right script to run: please start by reading the file `INSTALL'.
  46
  47 Report bugs to <bug-automake@gnu.org>.
  48 EOF
  49     exit $?
  50     ;;
  51   -v | --v*)
  52     echo "compile $scriptversion"
  53     exit $?
  54     ;;
  55 esac
  56
  57 ofile=
  58 cfile=
  59 eat=
  60
  61 for arg
  62 do
  63   if test -n "$eat"; then
  64     eat=
  65   else
  66     case $1 in
  67       -o)
  68         # configure might choose to run compile as `compile cc -o foo foo.c'.
  69         # So we strip `-o arg' only if arg is an object.
  70         eat=1
  71         case $2 in
  72           *.o | *.obj)
  73             ofile=$2
  74             ;;
  75           *)
  76             set x "$@" -o "$2"
  77             shift
  78             ;;
  79         esac
  80         ;;
  81       *.c)
  82         cfile=$1
  83         set x "$@" "$1"
  84         shift
  85         ;;
  86       *)
  87         set x "$@" "$1"
  88         shift
  89         ;;
  90     esac
  91   fi
  92   shift
  93 done
  94
  95 if test -z "$ofile" || test -z "$cfile"; then
  96   # If no `-o' option was seen then we might have been invoked from a
  97   # pattern rule where we don't need one.  That is ok -- this is a
  98   # normal compilation that the losing compiler can handle.  If no
  99   # `.c' file was seen then we are probably linking.  That is also
 100   # ok.
 101   exec "$@"
 102 fi
 103
 104 # Name of file we expect compiler to create.
 105 cofile=`echo "$cfile" | sed -e 's|^.*/||' -e 's/\.c$/.o/'`
 106
 107 # Create the lock directory.
 108 # Note: use `[/.-]' here to ensure that we don't use the same name
 109 # that we are using for the .o file.  Also, base the name on the expected
 110 # object file name, since that is what matters with a parallel build.
 111 lockdir=`echo "$cofile" | sed -e 's|[/.-]|_|g'`.d
 112 while true; do
 113   if mkdir "$lockdir" >/dev/null 2>&1; then
 114     break
 115   fi
 116   sleep 1
 117 done
 118 # FIXME: race condition here if user kills between mkdir and trap.
 119 trap "rmdir '$lockdir'; exit 1" 1 2 15
 120
 121 # Run the compile.
 122 "$@"
 123 ret=$?
 124
 125 if test -f "$cofile"; then
 126   mv "$cofile" "$ofile"
 127 elif test -f "${cofile}bj"; then
 128   mv "${cofile}bj" "$ofile"
 129 fi
 130
 131 rmdir "$lockdir"
 132 exit $ret
 133
 134 # Local Variables:
 135 # mode: shell-script
 136 # sh-indentation: 2
 137 # eval: (add-hook 'write-file-hooks 'time-stamp)
 138 # time-stamp-start: "scriptversion="
 139 # time-stamp-format: "%:y-%02m-%02d.%02H"
 140 # time-stamp-end: "$"
 141 # End: