gnulib-tool: robustness fix

[Bruno Haible]

I applied this:

        * gnulib-tool: Enclose all occurrences of $destdir in "...", so
        that it works when the directory contains spaces.

*** gnulib-tool.bak     2005-08-25 14:36:00.000000000 +0200
--- gnulib-tool 2005-08-29 00:10:56.000000000 +0200
***************
*** 789,795 ****
      if test -z "$dry_run" && test -n "$lgpl" && test -n "$source"; then
        perl -pi -e 's/GNU General/GNU Lesser General/g;' \
                 -e 's/version 2([ ,])/version 2.1\1/g' \
!                $destdir/$g
      fi
    done
  
--- 789,795 ----
      if test -z "$dry_run" && test -n "$lgpl" && test -n "$source"; then
        perl -pi -e 's/GNU General/GNU Lesser General/g;' \
                 -e 's/version 2([ ,])/version 2.1\1/g' \
!                "$destdir/$g"
      fi
    done
  
***************
*** 808,825 ****
    # Create lib/Makefile.am.
    echo "Creating $destdir/$sourcebase/Makefile.am..."
    if test -z "$dry_run"; then
!     func_emit_lib_Makefile_am > $destdir/$sourcebase/Makefile.am.new
    else
      func_emit_lib_Makefile_am
    fi
!   func_mv_if_changed $destdir/$sourcebase/Makefile.am.new \
!                      $destdir/$sourcebase/Makefile.am
  
    # Create gnulib.m4.
    echo "Creating $destdir/$m4base/gnulib.m4..."
    (
      if test -z "$dry_run"; then
!       exec > $destdir/$m4base/gnulib.m4.new
      else
        echo "# $destdir/$m4base/gnulib.m4"
      fi
--- 808,825 ----
    # Create lib/Makefile.am.
    echo "Creating $destdir/$sourcebase/Makefile.am..."
    if test -z "$dry_run"; then
!     func_emit_lib_Makefile_am > "$destdir"/$sourcebase/Makefile.am.new
    else
      func_emit_lib_Makefile_am
    fi
!   func_mv_if_changed "$destdir"/$sourcebase/Makefile.am.new \
!                      "$destdir"/$sourcebase/Makefile.am
  
    # Create gnulib.m4.
    echo "Creating $destdir/$m4base/gnulib.m4..."
    (
      if test -z "$dry_run"; then
!       exec > "$destdir"/$m4base/gnulib.m4.new
      else
        echo "# $destdir/$m4base/gnulib.m4"
      fi
***************
*** 881,887 ****
      echo
      echo "# gnulib.m4 ends here"
    )
!   func_mv_if_changed $destdir/$m4base/gnulib.m4.new $destdir/$m4base/gnulib.m4
    echo "Finished."
    echo
    echo "You may need to add #include directives for the following .h files."
--- 900,906 ----
      echo
      echo "# gnulib.m4 ends here"
    )
!   func_mv_if_changed "$destdir"/$m4base/gnulib.m4.new 
"$destdir"/$m4base/gnulib.m4
    echo "Finished."
    echo
    echo "You may need to add #include directives for the following .h files."
***************
*** 1160,1167 ****
        || func_fatal_error "destination directory does not exist: $destdir"
  
      # Prefer configure.ac to configure.in
!     test -f $destdir/configure.in && configure_ac=$destdir/configure.in
!     test -f $destdir/configure.ac && configure_ac=$destdir/configure.ac
      test -f "$configure_ac" \
        || func_fatal_error "cannot find $destdir/configure.ac"
  
--- 1184,1191 ----
        || func_fatal_error "destination directory does not exist: $destdir"
  
      # Prefer configure.ac to configure.in
!     test -f "$destdir"/configure.in && configure_ac="$destdir/configure.in"
!     test -f "$destdir"/configure.ac && configure_ac="$destdir/configure.ac"
      test -f "$configure_ac" \
        || func_fatal_error "cannot find $destdir/configure.ac"