github.com/jlmucb/cloudproxy@v0.0.0-20170830161738-b5aa0b619bc4/src/third_party/google-glog/compile (about)

     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