lib/compile

   1 #! /bin/sh
   2 # Wrapper for compilers which do not understand `-c -o'.
   3
   4 scriptversion=2003-11-09.00
   5
   6 # Copyright (C) 1999, 2000, 2003 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
  59 prog=$1
  60 shift
  61
  62 ofile=
  63 cfile=
  64 args=
  65 while test $# -gt 0; do
  66   case "$1" in
  67     -o)
  68       # configure might choose to run compile as `compile cc -o foo foo.c'.
  69       # So we do something ugly here.
  70       ofile=$2
  71       shift
  72       case "$ofile" in
  73         *.o | *.obj)
  74           ;;
  75         *)
  76           args="$args -o $ofile"
  77           ofile=
  78           ;;
  79       esac
  80        ;;
  81     *.c)
  82       cfile=$1
  83       args="$args $1"
  84       ;;
  85     *)
  86       args="$args $1"
  87       ;;
  88   esac
  89   shift
  90 done
  91
  92 if test -z "$ofile" || test -z "$cfile"; then
  93   # If no `-o' option was seen then we might have been invoked from a
  94   # pattern rule where we don't need one.  That is ok -- this is a
  95   # normal compilation that the losing compiler can handle.  If no
  96   # `.c' file was seen then we are probably linking.  That is also
  97   # ok.
  98   exec "$prog" $args
  99 fi
 100
 101 # Name of file we expect compiler to create.
 102 cofile=`echo $cfile | sed -e 's|^.*/||' -e 's/\.c$/.o/'`
 103
 104 # Create the lock directory.
 105 # Note: use `[/.-]' here to ensure that we don't use the same name
 106 # that we are using for the .o file.  Also, base the name on the expected
 107 # object file name, since that is what matters with a parallel build.
 108 lockdir=`echo $cofile | sed -e 's|[/.-]|_|g'`.d
 109 while true; do
 110   if mkdir $lockdir > /dev/null 2>&1; then
 111     break
 112   fi
 113   sleep 1
 114 done
 115 # FIXME: race condition here if user kills between mkdir and trap.
 116 trap "rmdir $lockdir; exit 1" 1 2 15
 117
 118 # Run the compile.
 119 "$prog" $args
 120 status=$?
 121
 122 if test -f "$cofile"; then
 123   mv "$cofile" "$ofile"
 124 fi
 125
 126 rmdir $lockdir
 127 exit $status
 128
 129 # Local Variables:
 130 # mode: shell-script
 131 # sh-indentation: 2
 132 # eval: (add-hook 'write-file-hooks 'time-stamp)
 133 # time-stamp-start: "scriptversion="
 134 # time-stamp-format: "%:y-%02m-%02d.%02H"
 135 # time-stamp-end: "$"
 136 # End: