mkinstalldirs
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 #! /bin/sh
 # mkinstalldirs --- make directory hierarchy
 
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 scriptversion=2005-06-29.22
 
 # Original author: Noah Friedman <friedman@prep.ai.mit.edu>
 # Created: 1993-05-16
 # Public domain.
 #
 # This file is maintained in Automake, please report
 # bugs to <bug-automake@gnu.org> or send patches to
 # <automake-patches@gnu.org>.
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 errstatus=0
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 dirmode=
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 usage="\
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 Usage: mkinstalldirs [-h] [--help] [--version] [-m MODE] DIR ...
 
 Create each directory DIR (with mode MODE, if specified), including all
 leading file name components.
 
 Report bugs to <bug-automake@gnu.org>."
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 # process command line arguments
 while test $# -gt 0 ; do
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   case $1 in
     -h | --help | --h*)         # -h for help
       echo "$usage"
       exit $?
       ;;
     -m)                         # -m PERM arg
       shift
       test $# -eq 0 && { echo "$usage" 1>&2; exit 1; }
       dirmode=$1
       shift
       ;;
     --version)
       echo "$0 $scriptversion"
       exit $?
       ;;
     --)                         # stop option processing
       shift
       break
       ;;
     -*)                         # unknown option
       echo "$usage" 1>&2
       exit 1
       ;;
     *)                          # first non-opt arg
       break
       ;;
   esac
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 done
 
 for file
 do
   if test -d "$file"; then
     shift
   else
     break
   fi
 done
 
 case $# in
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   0) exit 0 ;;
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 esac
 
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 # Solaris 8's mkdir -p isn't thread-safe.  If you mkdir -p a/b and
 # mkdir -p a/c at the same time, both will detect that a is missing,
 # one will create a, then the other will try to create a and die with
 # a "File exists" error.  This is a problem when calling mkinstalldirs
 # from a parallel make.  We use --version in the probe to restrict
 # ourselves to GNU mkdir, which is thread-safe.
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 case $dirmode in
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   '')
     if mkdir -p --version . >/dev/null 2>&1 && test ! -d ./--version; then
       echo "mkdir -p -- $*"
       exec mkdir -p -- "$@"
     else
       # On NextStep and OpenStep, the `mkdir' command does not
       # recognize any option.  It will interpret all options as
       # directories to create, and then abort because `.' already
       # exists.
       test -d ./-p && rmdir ./-p
       test -d ./--version && rmdir ./--version
     fi
     ;;
   *)
     if mkdir -m "$dirmode" -p --version . >/dev/null 2>&1 &&
        test ! -d ./--version; then
       echo "mkdir -m $dirmode -p -- $*"
       exec mkdir -m "$dirmode" -p -- "$@"
     else
       # Clean up after NextStep and OpenStep mkdir.
       for d in ./-m ./-p ./--version "./$dirmode";
       do
         test -d $d && rmdir $d
       done
     fi
     ;;
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 esac
 
 for file
 do
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   case $file in
     /*) pathcomp=/ ;;
     *)  pathcomp= ;;
   esac
   oIFS=$IFS
   IFS=/
   set fnord $file
   shift
   IFS=$oIFS
 
   for d
   do
     test "x$d" = x && continue
 
     pathcomp=$pathcomp$d
     case $pathcomp in
       -*) pathcomp=./$pathcomp ;;
     esac
 
     if test ! -d "$pathcomp"; then
       echo "mkdir $pathcomp"
 
       mkdir "$pathcomp" || lasterr=$?
 
       if test ! -d "$pathcomp"; then
 	errstatus=$lasterr
       else
 	if test ! -z "$dirmode"; then
 	  echo "chmod $dirmode $pathcomp"
 	  lasterr=
 	  chmod "$dirmode" "$pathcomp" || lasterr=$?
 
 	  if test ! -z "$lasterr"; then
 	    errstatus=$lasterr
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 	  fi
 	fi
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       fi
     fi
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     pathcomp=$pathcomp/
   done
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 done
 
 exit $errstatus
 
 # Local Variables:
 # mode: shell-script
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 # sh-indentation: 2
 # eval: (add-hook 'write-file-hooks 'time-stamp)
 # time-stamp-start: "scriptversion="
 # time-stamp-format: "%:y-%02m-%02d.%02H"
 # time-stamp-end: "$"
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 # End: