compile

   1 #! /bin/sh
   2
   3 # Wrapper for compilers which do not understand `-c -o'.
   4
   5 # Copyright (C) 1999 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 # Usage:
  23 # compile PROGRAM [ARGS]...
  24 # `-o FOO.o' is removed from the args passed to the actual compile.
  25
  26 prog="$1"
  27 shift
  28
  29 ofile=
  30 cfile=
  31 args=
  32 while test $# -gt 0; do
  33    case "$1" in
  34     -o)
  35        ofile="$2"
  36        shift
  37        ;;
  38     *.c)
  39        cfile="$1"
  40        args="$args $1"
  41        ;;
  42     *)
  43        args="$args $1"
  44        ;;
  45    esac
  46    shift
  47 done
  48
  49 test -z "$ofile" && {
  50    echo "compile: no \`-o' option seen" 1>&2
  51    exit 1
  52 }
  53
  54 test -z "$cfile" && {
  55    echo "compile: no \`.c' file seen" 1>&2
  56    exit 1
  57 }
  58
  59 # Name of file we expect compiler to create.
  60 cofile="`echo $cfile | sed -e 's|^.*/||' -e 's/\.c$/.o/'`"
  61
  62 # Create the lock directory.
  63 lockdir="`echo $ofile | sed -e 's|/|_|g'`"
  64 while true; do
  65    if mkdir $lockdir > /dev/null 2>&1; then
  66       break
  67    fi
  68    sleep 1
  69 done
  70 # FIXME: race condition here if user kills between mkdir and trap.
  71 trap "rmdir $lockdir; exit 1" 1 2 15
  72
  73 # Run the compile.
  74 "$prog" $args
  75 status=$?
  76
  77 if test -f "$cofile"; then
  78    mv "$cofile" "$ofile"
  79 fi
  80
  81 rmdir $lockdir
  82 exit $status