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[/] [openrisc/] [trunk/] [rtos/] [rtems/] [tools/] [update/] [cipolish] - Rev 173

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#!/usr/bin/perl

#
# Perl script to beautify and enhance RTEMS configure.in
#
# Reads from stdin and writes to stdout
#
# usage: 
# acpolish <configure.in >configure.in~
# mv configure.in~ configure.in
#

# $Id: cipolish,v 1.2 2001-09-27 12:02:54 chris Exp $

use strict ;

my @vars = () ;
my @buffer = () ;
my %var_ ;

# find relative up-path to VERSION
my $rtems_cfg = &find_file(".","VERSION");
my $rtems_root = &find_root() ;
$rtems_root =~ tr/\//\-/ ;
my $rtems_name = "rtems" ;
$rtems_name .=  "-" . "$rtems_root" if (length($rtems_root) > 0 ) ;

while ( <> )
{
  push @buffer, "$_" ;
}

{
  my @tbuf = () ;

  foreach ( @buffer )
  { 
    if ( /^#.*list.*Makefile.*$/o ) {}
    elsif ( /^dnl[\s]+check.*target.*cc.*$/o ) {}
    elsif ( /^[\s]*AC_CONFIG_AUX_DIR\(.*\)[\s]*$/o )
    {
      push @tbuf, "AC_CONFIG_AUX_DIR($rtems_cfg)\n" ;
    }
    elsif ( /^[\s]*RTEMS_TOP\(.*\)[\s]*$/o )
    {
      push @tbuf, "RTEMS_TOP($rtems_cfg)\n" ;
    }
    elsif ( /^[\s]*AM_INIT_AUTOMAKE\(.*\)[\s]*$/o )
    {
      push @tbuf, "AM_INIT_AUTOMAKE($rtems_name,\$RTEMS_VERSION,no)\n" ;
    }
    elsif ( /^[\s]*AC_SUBST\(RTEMS_HAS_POSIX_API\)[\s]*$/o ) 
    {
      #remove the line
    }
    elsif ( /^[\s]*AC_SUBST\(RTEMS_HAS_ITRON_API\)[\s]*$/o ) 
    {
      #remove the line
    }
    elsif ( /^[\s]*AC_SUBST\(RTEMS_HAS_HWAPI\)[\s]*$/o ) 
    {
      #remove the line
    }
    elsif ( /^[\s]*AC_SUBST\(RTEMS_USE_MACROS\)[\s]*$/o ) 
    {
      #remove the line
    }
    elsif ( /^[\s]*AC_SUBST\(RTEMS_HAS_MULTIPROCESSING\)[\s]*$/o ) 
    {
      #remove the line
    }
    elsif ( /^[\s]*AC_SUBST\(RTEMS_HAS_RDBG\)[\s]*$/o ) 
    {
      #remove the line
    }
    elsif ( /^[\s\t]*AC_SUBST\(RTEMS_USE_OWN_PDIR\)[\s]*$/o ) 
    { # obsolete option
      #remove the line
    }
    elsif ( /^[\s\t]*RTEMS_ENABLE_GMAKE_PRINT[     ]*$/o ) 
    { # obsolete macro
      #remove the line
    }
    elsif ( /^[\s]*AC_SUBST\(RTEMS_HAS_NETWORKING\)[\s]*$/o ) 
    {
      #remove the line
    }
    elsif ( /^[\s]*AC_SUBST\(RTEMS_LIBC_DIR\)[\s]*$/o ) 
    {
      #remove the line
    }
    elsif ( /^[\s]*AC_SUBST\(PROJECT_ROOT\)[\s]*$/o ) 
    {
      #remove the line
    }
    elsif ( /^[\s]*AC_SUBST\(RTEMS_GAS_CODE16\)[\s]*$/o ) 
    {
      #remove the line
    }
    elsif ( /^[\s]*PROJECT_ROOT[\s]*=.*$/o ) 
    {
      #remove the line
    }
    elsif ( /^[\s]*(RTEMS_ENABLE_LIBCDIR).*$/o ) 
    { #remove the line
      &define_variable("$1","");
      push @tbuf, "$_" ;
    }
    elsif ( /^[\s]*(RTEMS_PROG_CC_FOR_TARGET).*$/o ) 
    {
      &define_variable("$1","");
      push @tbuf, "$_" ;
    }
    elsif ( /^[\s]*(RTEMS_PROG_CXX_FOR_TARGET).*$/o ) 
    {
      &define_variable("$1","");
      push @tbuf, "$_" ;
    }
    else
    {
      push @tbuf, "$_" ;
    }
  } # foreach
  @buffer = @tbuf ;
}

{
  my @tbuf = () ;
  foreach ( @buffer )
  {
    if ( /^[\s]*(RTEMS_ENABLE_LIBCDIR).*$/o )
    {
      if (  ( not variable_seen( "RTEMS_PROG_CC_FOR_TARGET" ) )
        and ( not variable_seen( "RTEMS_PROG_CXX_FOR_TARGET" ) )
      ) 
      {
        push @tbuf, "$_" ;
      }
    }
    elsif ( /^AC_OUTPUT.*$/o )
    {
      push @tbuf, "# Explicitly list all Makefiles here\n" ;
      push @tbuf, "$_" ;
    }
    else
    {
      push @tbuf, "$_" ;
    }
  }
  @buffer = @tbuf ;
}

{ ## pretty print
  my $out = join ('',@buffer) ;
  $out =~ s/\s\#\n(\#\n)+/\n/g ;
  $out =~ s/\n\n\#\n\n/\n/g ;
  $out =~ s/\n\n[\n]*/\n\n/g ;
  print $out ;
}

exit 1 ;

# find a relative up-path to a file $file, starting at directory $pre
sub find_file($$)
{
  my $pre = $_[0] ;
  my $file= $_[1] ;

  my $top = "." ;
  if (not "$pre") { $pre = "." ; }

  for ( my $str = "$pre" . "/" . "$top" ;
    ( -d "$str" ) ;
    $str = "$pre" . "/" . "$top" )
  {
    if ( -f "${str}/${file}" )  
    {
      return $top ; 
    }
    if ( "$top" eq "." )
    {
      $top = ".." ;
    }
    else
    {
      $top .= "/.." ;
    }
  } ;
  die "Can't find file ${file}\n" ;
}

sub find_root()
{
  my $top_builddir = "." ;
  my $subdir="";
  my $pwd = `pwd`; chomp $pwd;
  $pwd .= "/" ;
  my $len ;

  if ( -f "VERSION" )  { return $subdir ; }
  my $i = rindex($pwd,'/');

  $len = $i;
  $pwd = substr($pwd,0,$len);
  $i = rindex($pwd,'/');
  $subdir = substr($pwd,$i+1,$len - 1);
  $top_builddir = ".." ;  

  while( -d "$top_builddir" ) 
  {
    if ( -f "${top_builddir}/VERSION" )  
    { 
      return $subdir ; 
    }
    $len=$i;
    $pwd = substr($pwd,0,$len);
    $i = rindex($pwd,'/');
    $subdir = substr($pwd,$i+1,$len - 1) . "/$subdir";
    $top_builddir .= "/.." ;  
  } ;
  die "Can't find VERSION\n" ;
}

sub variable_seen($)
{
  my $label = "$_[0]" ;
  my $res = defined $var_{"$label"};
#print STDERR "SEEN: $label ->$res<\n" ;
  return $res ;
}

sub define_variable($$)
{
  my ($label,@value) = @_ ;

  if ( not variable_seen("$label") )
  {
# print STDERR "DEFINING $label\n" ;
    push @vars, "$label" ;
  }

  foreach my $i ( @{value} )
  {
    push @{$var_{"$label"}}, $i ;
  }
}

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