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#!/usr/bin/perl
#
# Perl script to beautify and enhance RTEMS automake Makefile.ams
#
# Reads from stdin and writes to stdout
#
# usage:
# <path-to>/ampolish <Makefile.am >Makefile.am~
# mv Makefile.am~ Makefile.am
#
# ATTENTION: This file contains embedded tabs
my $subdirs_seen = "" ;
# 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 ( $str = "$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" ;
}
# find relative up-path to configure.in
my $rtems_cfg = find_file(".","configure.in");
# find relative up-path from configure.in to VERSION
my $rtems_top = find_file("$rtems_cfg","VERSION");
if ( "$rtems_top" eq "." )
{ $rtems_top = "" ; }
else { $rtems_top .= "/" ; }
my $nl_seen = 0 ;
while( <> )
{ # consume header
last if ( /^[^#].*$/ ) ;
print "$_" ;
}
print "\nAUTOMAKE_OPTIONS = foreign 1.4\n";
if ( "$rtems_cfg" eq "." )
{
print "ACLOCAL_AMFLAGS = -I \$(RTEMS_TOPdir)/aclocal\n"
}
while( <> )
{
if ( /^[\s\t]*$/o )
{
$nl_seen = $nl_seen+1;
}
if ( /^[\s\t]*AUTOMAKE_OPTIONS.*$/o )
{ # remove the line
}
elsif ( /^[\s\t]*ACLOCAL[\s\t]*=[\s\t]*\@ACLOCAL\@.*$/o )
{ # remove the line
}
elsif ( /^[\s\t]*ACLOCAL_AMFLAGS[\s\t]*=[\s\t]*.*$/o )
{ # remove the line
}
elsif ( /^[\s\t]*include[\s\t]*\$\(top_srcdir\)[\.\/]*automake\/(.*)\.am$/o )
{
# remove the line
}
elsif ( /^[\s\t]*SUBDIRS.*$/o )
{
$subdirs_seen = "yes" ;
print "$_" ;
$nl_seen = 0 ;
}
elsif ( /^[ ]*$/o )
{
print "$_" if $nl_seen < 2 ;
}
else
{
print "$_" ;
$nl_seen = 0;
}
} # while
if ( "$subdirs_seen" )
{
print "include \$(top_srcdir)/${rtems_top}automake/subdirs.am\n" ;
}
print "include \$(top_srcdir)/${rtems_top}automake/local.am\n" ;
;1
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