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[/] [openrisc/] [trunk/] [rtos/] [rtems/] [tools/] [update/] [acpolish] - Blame information for rev 173

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#!/usr/bin/perl
 
use strict ;
 
sub print_macro($$);
 
#
# Perl script to beautify and enhance RTEMS autoconf Makefile.ins
#
# Reads from stdin and writes to stdout
#
# usage:
# acpolish Makefile.in~
# mv Makefile.in~ Makefile.in
#
# Note: This tool is not indented to be exported from the source-tree
#
 
if ( -f "Makefile.am" )
{
  # Refuse to work on Makefile.ins generated from automake;
  # redirecting STDOUT to Makefile.in will trash the Makefile.in ;-
 
  die "acpolish must not be run in automake directories" ;
}
 
my $experimental = 0 ; # enable experimental/unsafe features
my $verbose = 0 ;
my $build_pgms_seen = "" ;
my $make_exe_seen = 0 ;
my $install_seen = 0 ;
my $top_builddir = "";
my $subdir = "";
my @installdirs = () ;
 
my @pieces = () ;
my @files = () ;
my @variants = () ;
my @vars = () ;
 
# Strip off duplicate entries from a list
sub purge($)
{
  my $list = $_[0] ; # Reference to list !
  my (@tmp) = () ;
 
  foreach my $l ( @{$list} )
  {
    my $i = 1 ;
    foreach my $t (@tmp)
    {
      if ( $t eq $l )
      {
        $i = 0 ;
        last ;
      }
    }
    push @tmp,$l if ($i) ;
  }
 
  @{$list} = @tmp ;
}
 
sub find_root
{
  $top_builddir = "." ;
  $subdir="";
  my $pwd = `pwd`; chomp $pwd;
  $pwd .= "/" ;
  my $len ;
 
  if ( -f "configure.in" )  { return $top_builddir ; }
  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}/configure.in" )
    {
      return $top_builddir ;
    }
    $len=$i;
    $pwd = substr($pwd,0,$len);
    $i = rindex($pwd,'/');
    $subdir = substr($pwd,$i+1,$len - 1) . "/$subdir";
    $top_builddir .= "/.." ;
  } ;
  die "Can't find configure.in\n" ;
}
 
find_root();
 
my @buffer = () ;
 
sub subst_line
{
# substitute obsolete variables
  if ( /^([^\s]*)[\s]+$/o )
  { # strip trailing spaces
    $_ = "$1\n";
  }
  if ( /^(.*)MKLIB(.*)$/o )
  {
    s/MKLIB/RANLIB/g ;
  }
  if ( /^(.*)\$\(INSTINCFLAGS\)(.*)$/o )
  {
    s/\$\(INSTINCFLAGS\)/-m 644/g ;
  }
  if ( /^(.*)ASM(_FILES|_PIECES|_O_FILES)(.*)$/o )
  {
    s/ASM_FILES/S_FILES/g ;
    s/ASM_PIECES/S_PIECES/g ;
    s/ASM_O_FILES/S_O_FILES/g ;
    print STDERR "ASM: $_"  if ( $verbose > 0) ;
  }
  if ( /^(.*)MP_PIECES(.*)$/o )
  { # HACK: this is not always correct
    s/MP_PIECES/MP_C_PIECES/g ;
    print STDERR "MP_PIECES: $_"  if ( $verbose > 0 );
  }
  if ( /^(.*)\$\(RTEMS_BSP\)(.*)$/o )
  {
    s/\$\(RTEMS_BSP\)/\@RTEMS_BSP\@/g ;
  }
  if ( /^(.*)\$\(RTEMS_ROOT\)\/mkinstalldirs(.*)$/o )
  {
    $_ = "$1\$\(mkinstalldirs\)$2\n" ;
  }
  if ( /^(.*)\$\{(.*)_FILES\}(.*)$/o )
  {
    $_ = "$1\$\($2_FILES\)$3\n" ;
  }
  if ( /^(.*)\$\{(.*)_PIECES\}(.*)$/o )
  {
    $_ = "$1\$\($2_PIECES\)$3\n" ;
  }
  if ( /^(.*)\$\(PROJECT_ROOT\)\/\@RTEMS_BSP\@\/lib\/include(.*)$/o )
  {
    $_ = "$1\$\(PROJECT_INCLUDE\)$2\n" ;
  }
  if ( /^(.*)\$\{PROJECT_RELEASE\}(.*)$/o )
  {
    $_ = "$1\$\(PROJECT_RELEASE\)$2\n" ;
  }
  if ( /^(.*\$\(INSTALL_[A-Z]+\))[\s]+-m[\s]+([54])([0-9][0-9].*)$/o )
  {
    my $v = $2 + 2 ;
    $_ = "$1 -m $v$3\n" ;
  }
  if ( /^H_FILES[\s]*=[\s]*\$\(wildcard[\s]+\$\(srcdir\)\/\*\.h\)[\s]*$/o )
  {
     my $files =`ls *.h 2>/dev/null`;
     print STDERR "WARNING: Replacing \"\(wildcard... in $_\n" ;
     my $line = "H_FILES =";
     my @l = split(' ',$files) ;
     foreach(@l) { $line .= " \$\(srcdir\)/$_"; }
     $line .= "\n" ;
     $_ = "$line" ;
  }
  if ( /^(.*)RTEMS_HAS_([A-Z]+)(.*)$/o )
  {
     print STDERR "WARNING: Replacing RTEMS_HAS_$2 with HAS_$2\n" ;
     $_ = "$1HAS_$2$3\n" ;
  }
  if ( /^[\s]*\$[({]PGM[)}]:[\s]*(.*)\$([({]SRCS[)}])(.*)$/o )
  {
      $_ = "\$(PGM):$1$3\n" ;
  }
  if ( /^.*\$\(make\-exe\).*$/o )
  {
    $make_exe_seen = 1 ;
  }
  if ( /^.*\$\(INSTALL_(DATA|SCRIPT|PROGRAM)\)(.*)$/o )
  {
    $install_seen = 1 ;
  }
}
 
{
# 1st PASS:
# * Read input file
# * concatenate multiple lines
# * Remove obsolete variables
 
  my @ibuf = () ;
  my $line = "" ;
 
  while (  )
  {
    &subst_line ;
    if ( /^(#.*)$/o )
    { # preserve comments
      $line = "$_" ;
      push @ibuf, $line ;
      $line = "" ;
    }
    elsif ( /^.*\\$/o )
    { # multilines
      chop ;
      $line .= "$_\\" ;
    }
    else
    {
      $line .= "$_" ;
      push @ibuf, $line ;
      $line = "" ;
    }
  }
  @buffer = @ibuf;
}
 
{
# 2nd PASS:
# * remove automatically generated lines
# * process some selected make rules
  my $line = "" ;
  my @tbuf = () ;
  foreach (@buffer)
  {
    if ( /^[\t](.*)$/o )
    { # make rule production
      my $line = $1 ;
      tr/\\/ / ;
      my @l = split(/;/,$_);
      foreach (@l)
      { # try to get installation directories
        if ( /^.*\$\(mkinstalldirs\).*\s\$\(INSTALLDIRS\)$/o )
        {
        }
        elsif ( /^.*\$\(mkinstalldirs\).*\s([^\s]+)$/o )
        {
          push @installdirs, "$1" ;
        }
        elsif ( /^.*\$\(INSTALL_CHANGE\).*\s([^\s]+)(\/[^\.\s]+\.[^\s\/]+)$/o )
        {
#            print STDERR "WARNING - DIR1: $1 <$2> " ;
            push @installdirs, "$1" ;
        }
        elsif ( /^.*\$\(INSTALL_CHANGE\).*\s([^\s]+)$/o )
        {
#          print STDERR "DIR2 $1\n" ;
          push @installdirs, "$1" ;
        }
      }
      push @tbuf, "�3$line"
    }
    elsif ( /^[\s]*\#.*$/o )
    { # comment
      push @tbuf, "$_" ;
    }
    elsif ( /^[\s]*([A-Z_]*)_FILES[\s]*\=[\s]*(.*)$/o )
    { # *_FILES = ... Macros
      if ( /^[\s]*([A-Z_]*_|)(CC|C|EQ|H|I|O|S|X)_FILES[\s]*\=[\s]*(.*)$/o )
      {
#        print STDERR "FILES: <$1>--<$2>--<$3>\n" ;
        my $f = "$1$2_FILES" ;
        ${"var_$f"}="$3" ;
        if ( ( $experimental > 0 )
          and ( ( "$2" eq "C" ) or ( "$2" eq "CC" ) or ( "$2" eq "S" )
          or ( "$2" eq "I" ) or ( "$2" eq "H" ) ) )
        {
          my $p = "$1$2_PIECES" ;
          if ( not defined ${"var_$p"} )
          {
            print STDERR "ADDING $p\n" ;
            ${"var_$p"} = "" ;
            push @tbuf, "�4$p\n" ;
            push @pieces, "$p" ;
          }
        }
        # place a marker
        push @tbuf, "�4$f\n" ;
        push @files, "$f" ;
      }
      else
      { # found a bug
        print STDERR "UNKNOWN _FILES: $_\n" ;
        my $f = "$1_FILES" ;
        ${"var_$f"}="$2" ;
        # place a marker
        push @tbuf, "�4$f\n" ;
        push @files, "$f" ;
      }
    }
    elsif ( /^[\s]*([A-Z_]*)_PIECES[\s]*\=[\s]*(.*)$/o )
    { # *_PIECES = ... Macros
      if ( /^[\s]*([A-Z][A-Z0-9_]*_|)(CC|C|EQ|H|I|O|S|X|REL)_PIECES[\s]*\=[\s]*(.*)$/o )
      {
        my $p = "$1$2_PIECES" ;
 
        if ( not defined ${"var_$p"} )
        {
          ${"var_$p"} = "$3" ;
          push @tbuf, "�4$p\n" ;
          push @pieces, "$p" ;
        }
        else
        {
          ${"var_$p"} .= " $3" ;
        }
      }
      elsif ( /^[\s]*(BSP|CPU|GENERIC)_PIECES[\s]*\=[\s]*(.*)$/o )
      { # Explicit exceptions from the *_PIECES naming conventions
        # They should better be replaced in future
        my $p = "$1_PIECES" ;
        ${"var_$p"}="$2" ;
        # place a marker
        push @tbuf, "�4$p\n" ;
        push @pieces, "$p" ;
      }
      else
      { # found a bug
        print STDERR "UNKNOWN _PIECES: $_\n" ;
        my $p = "$1_PIECES" ;
        ${"var_$p"}="$2" ;
        # place a marker
        push @tbuf, "�4$p\n" ;
        push @pieces, "$p" ;
      }
    }
    elsif ( /^[\s]*([A-Z_]+)_PIECES_([^\s]+)_V[\s]*\=[\s]*(.*)$/o )
    { # *_PIECES_.._V = ... Macros
      if ( /^[\s]*([A-Z][A-Z0-9_]*_|)(CC|C|EQ|H|I|O|S|X|REL)_PIECES_([^\s]+)_V[\s]*\=[\s]*(.*)$/o )
      {
        my @l = split(/_/,$3);
        my $v = "$1$2-$#l" ;
        if ( not defined @{"variants_$v"} ) { push @variants, "$v" ; }
 
        my $p = "$1$2_PIECES_$3_V" ;
        push @{"variants_${v}"}, "$p" ;
 
        ${"var_$p"}="$4" ;
        # place a marker
        push @tbuf, "�4$p\n" ;
        push @pieces, "$p" ;
      }
      else
      { # found a bug
        print STDERR "UNKNOWN _PIECES: $_\n" ;
        my $p = "$1_PIECES" ;
        ${"var_$p"}="$2" ;
        # place a marker
        push @tbuf, "�4$p\n" ;
        push @pieces, "$p" ;
      }
    }
    elsif ( /^[\s]*([^\s+=]+)[\s]*\=[\s]*(.*)$/o )
    { # makefile variables
      if ( ( "$1" eq "subdir" )
        or ( "$1" eq "top_srcdir" )
        or ( "$1" eq "top_builddir" )
        or ( "$1" eq "RTEMS_ROOT" )
        or ( "$1" eq "PROJECT_ROOT" )
        or ( "$1" eq "INSTALL" )
        or ( "$1" eq "PACKHEX" )
        or ( "$1" eq "INSTALL_CHANGE" )
        or ( "$1" eq "mkinstalldirs" )
        or ( "$1" eq "ACLOCAL" )
        or ( "$1" eq "AUTOCONF" )
        or ( "$1" eq "ACLOCAL_M4" )
        or ( "$1" eq "ACLOCAL_AMFLAGS" )
      )
      {
        print STDERR "REMOVE: $1\n" if $verbose ;
      }
      elsif ( "$1" eq "srcdir" )
      { # place marker
        push @tbuf, "�0\n";
      }
      elsif ( "$1" eq "INSTALLDIRS" )
      { # process the block
        my $input = $2 ;
        $input =~ s/\\\\/ /g ;
        my @l = split(' ',$input);
        foreach (@l)
        {
          if ( /[\s]*([^\s]+)[\s]*$/o )
          {
            push @installdirs, "$1" ;
          }
        }
      }
      else
      {
# print STDERR "MACRO: <$1> = <$2>\n";
        my $p = "$1" ;
        ${"var_$p"}="$2" ;
        # place a marker
        push @tbuf, "�4$p\n" ;
        push @vars, "$p" ;
      }
    }
    elsif ( /^[\s]*([^\s+=]+)[\s]*\+\=[\s]*(.*)$/o )
    { # makefile variable addition
# print STDERR "MACRO: <$1> += <$2>\n";
        my $p = "$1" ;
        if ( not defined ${"var_$p+"} )
        {
          # place a marker
          push @tbuf, "�5$p\n" ;
          push @vars, "$p+" ;
        }
        else
        {
          print STDERR "WARNING += $_" ;
        }
        ${"var_$p+"} .=" $2" ;
    }
    elsif ( /^[\s]*(\@[^\s]+\@)$/o )
    { # autoconf variable
      if ( "$1" eq "\@SET_MAKE\@" )
      {
      }
      else
      {
        push @tbuf, "$1\n" ;
      }
    }
    elsif ( /^[\s]*include[\s]+(.*)$/o )
    { # include line
      push @tbuf, "$_" ;
      if ( /^include[\s\t]*.*(directory|leaf|lib)\.cfg.*$/o )
      {
        push @tbuf, "�1\n" ;
        push @tbuf, "PACKHEX = \@PACKHEX\@\n" if ( $make_exe_seen == 1 ) ;
        push @tbuf, "�2\n" ;
      }
    }
    elsif ( /^[\s]*(ifeq|ifneq|else|endif)[\s]+(.*)$/o )
    { # gmake conditionals
      # Most of them are removed, but we still have some :-
      push @tbuf, "$1 $2\n" ;
    }
    elsif ( /^\@.*_(TRUE|FALSE)\@.*$/o )
    { # automake conditionals
      # HACK: Don't know how to handle them, so let's pass them through
      push @tbuf, "$_" ;
    }
    elsif ( /^[\s]*([^:]+)[\s]*(:[:]*)[\s]*(.*)$/o )
    {
      if ( "$2" eq "::" )
      {
        # Warn about "::"-rules
        # Will be silently removed below.
        print STDERR "WARNING: Removing \"::\" in RULE $_\n" ;
      }
 
      if ( ( "$1" eq "Makefile" )
        or ( "$1" eq "\$\(INSTALLDIRS\)" )
        or ( "$1" eq "\$\(ACLOCAL_M4\)" )
        or ( "$1" eq "config\.status" )
        or ( "$1" eq "\$\(srcdir\)/configure" )
      )
      { # delete entry
        shift @buffer ;
      }
      elsif ( ( "$1" eq "all" )
        or    ( "$1" eq "preinstall" ) )
      {
        # Note the dependencies
        # Not yet exploited, but could be useful for dependency
        # tracking in future
        if ( defined ${"var_$1"} )
          { ${"var_$1"} .= " $3" ; }
        else
          { ${"var_$1"} = "$3" ; }
        push @tbuf, "$1: $3\n" ;
      }
      else
      { # make rule
        push @tbuf, "$1: $3\n" ;
      }
    }
    elsif ( /^[\s]*$/o )
    { # empty line
      push @tbuf, "\n" ;
    }
    else
    {
      die "PASS 2: Unhandled $_" ;
    }
  }
  @buffer = @tbuf ;
  @tbuf = @installdirs ;
  @installdirs = () ;
  foreach ( @tbuf )
  {
    if ( /^([^\s]+)(\/[^\.\s]+\.[^\s\/]+)$/o )
    {
       print STDERR "WARNING - stripping of file: $1 <$2> " if ( $verbose > 1 );
       push @installdirs, "$1" ;
    }
    else
    {
       push @installdirs, "$_" ;
    }
  }
  purge \@installdirs ;
  purge \@pieces ;
}
 
# A fragment to debug conditionals
#foreach( @variants )
#{
#  my $v = $_ ;
#  print STDERR "VARIANT: $v\n";
#  foreach (@{"variants_${v}"})
#  {
#    print STDERR "* $_\n;" ;
#  }
#}
 
# sanity check on *_FILES macros
# too fragile for the time being,
# therefore disabled by default
if ( $experimental > 1 )
{
  foreach( @files )
  {
    my $file = "$_" ;
    my $line = ${"var_$_"} ;
    $line =~ tr /\\/ /;
    my @l = split(' ',$line);
    my @o = () ;
    foreach (@l)
    {
      if ( /^([^\.]+)\.([a-z]+)$/o )
      {
        print STDERR "$file: *.$2 in $_\n" ;
      }
      elsif ( /^\$\(.*\)$/o )
      {
        print STDERR "$file: REF: $_\n" ;
      }
      else
      {
        print STDERR "$file: UNHANDLED: $_\n" ;
      }
    }
  }
}
 
# print STDERR "PASS 2: @buffer" ;
 
{
# PASS 3:
# * output to new Makefile
# * prettyprint newlines
 
  my $nl_seen = 0 ;
  foreach ( @buffer )
  {
    if ( /^$/o )
    {
      $nl_seen++ ;
      print "\n" if ( $nl_seen < 2 );
    }
    elsif ( /^\�0$/o )
    {
      print "\@SET_MAKE\@\n" ;
      print "srcdir = \@srcdir\@\n" ;
      print "top_srcdir = \@top_srcdir\@\n" ;
      print "top_builddir = $top_builddir\n" ;
      if ( "$subdir" )
      {
        print "subdir = $subdir\n";
      }
      else
      {
        print "\nACLOCAL = aclocal\n" ;
        print "AUTOCONF = autoconf\n" ;
        print "ACLOCAL_M4 = \$(top_srcdir)/aclocal.m4\n" ;
        print "ACLOCAL_AMFLAGS = -I \@RTEMS_TOPdir\@/aclocal\n" ;
      }
      print "\nRTEMS_ROOT = \@RTEMS_ROOT\@\n" ;
      print "PROJECT_ROOT = \@PROJECT_ROOT\@\n\n" ;
      $nl_seen = 1 ;
    }
    elsif ( /^\�1$/o )
    {
      print "\n" ;
      print "INSTALL = \@INSTALL\@\n" if ( $install_seen > 0 );
      print "INSTALL_CHANGE = \@INSTALL_CHANGE\@\n" ;
      $nl_seen = 0 ;
    }
    elsif ( /^\�2$/o )
    { # Handle installdirs related items
      if ( $#installdirs >= 0 )
      {
        print "mkinstalldirs = \$(SHELL) \$(top_srcdir)/\@RTEMS_TOPdir\@/mkinstalldirs\n\n" ;
        my $line = join( ' ',@installdirs );
        &print_macro( "INSTALLDIRS =", $line );
        print "\n\$(INSTALLDIRS):\n\t\@\$(mkinstalldirs) \$(INSTALLDIRS)\n\n" ;
        $nl_seen = 1 ;
      }
    }
    elsif ( /^\�3(.*)$/o  )
    { # pretty print a shell script fragment/make production
      my @l = split(/\\\\/,$1);
      if ( $#l >= 0 ) { my $i = shift @l ; print "\t$i"; }
      foreach( @l ) { print "\\\n$_"; }
      print "\n" ;
      $nl_seen = 0 ;
    }
    elsif ( /^\�4(.*)$/o  )
    { # pretty print a make variable
      &print_macro( "$1 =", ${"var_$1"} );
      $nl_seen = 0 ;
    }
    elsif ( /^\�5(.*)$/o  )
    { # pretty print an addition to a make variable
      &print_macro( "$1 +=", ${"var_$1+"}) ;
      $nl_seen = 0 ;
    }
    else
    {
      $nl_seen = 0 ;
      print "$_" ;
    }
  }
}
 
# Add rules for config.status generated files
if ( "$build_pgms_seen" )
{
print "%: \$(srcdir)/%.in \$(top_builddir)/config.status\n" ;
print " cd \$(top_builddir) \\\n" ;
print "  && CONFIG_FILES=" ;
print "\$(subdir)/" if ( "$subdir" );
print "\$@ CONFIG_HEADERS= \$(SHELL) ./config.status\n";
}
else
{
print "Makefile: \$(srcdir)/Makefile.in \$(top_builddir)/config.status\n" ;
print "\tcd \$(top_builddir) \\\n" ;
print "\t && CONFIG_FILES=" ;
print "\$(subdir)/" if ( "$subdir" );
print "\$@ CONFIG_HEADERS= \$(SHELL) ./config.status\n";
}
 
if ( ! "$subdir" )
{
print "\n\$(ACLOCAL_M4): \@MAINTAINER_MODE_TRUE\@ configure.in\n" ;
print "\tcd \$(srcdir) && \$(ACLOCAL) \$(ACLOCAL_AMFLAGS)\n" ;
print "\nconfig.status: \$(srcdir)/configure \$(CONFIG_STATUS_DEPENDENCIES)\n" ;
print "\t\$(SHELL) ./config.status --recheck\n" ;
print "\$(srcdir)/configure: \@MAINTAINER_MODE_TRUE\@\$(srcdir)/configure.in";
print " \$(ACLOCAL_M4)\n" ;
print "\tcd \$(srcdir) && \$(AUTOCONF)\n"
}
 
exit 0 ;
 
sub print_macro($$)
{
  my ($line,$input) = @_ ;
  $input =~ s/\\\\/ /g;
  my @l = split(' ',$input);
 
  foreach (@l) {
    if ( ( length($line) + length($_) ) < 76 )
    {
          $line .= " $_";
    }
    else
    {
           print "$line \\\n";
           $line = "    $_" ;
    }
  }
  print "$line\n" ;
}
 

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[/] [openrisc/] [trunk/] [rtos/] [rtems/] [tools/] [update/] [acpolish] - Blame information for rev 173

Line No.	Rev	Author	Line
1	30	unneback	`#!/usr/bin/perl`
2
3			`use strict ;`
4
5			`sub print_macro($$);`
6
7			`#`
8			`# Perl script to beautify and enhance RTEMS autoconf Makefile.ins`
9			`#`
10			`# Reads from stdin and writes to stdout`
11			`#`
12			`# usage:`
13			`# acpolish Makefile.in~`
14			`# mv Makefile.in~ Makefile.in`
15			`#`
16			`# Note: This tool is not indented to be exported from the source-tree`
17			`#`
18
19			`if ( -f "Makefile.am" )`
20			`{`
21			`# Refuse to work on Makefile.ins generated from automake;`
22			`# redirecting STDOUT to Makefile.in will trash the Makefile.in ;-`
23
24			`die "acpolish must not be run in automake directories" ;`
25			`}`
26
27			`my $experimental = 0 ; # enable experimental/unsafe features`
28			`my $verbose = 0 ;`
29			`my $build_pgms_seen = "" ;`
30			`my $make_exe_seen = 0 ;`
31			`my $install_seen = 0 ;`
32			`my $top_builddir = "";`
33			`my $subdir = "";`
34			`my @installdirs = () ;`
35
36			`my @pieces = () ;`
37			`my @files = () ;`
38			`my @variants = () ;`
39			`my @vars = () ;`
40
41			`# Strip off duplicate entries from a list`
42			`sub purge($)`
43			`{`
44			`my $list = $_[0] ; # Reference to list !`
45			`my (@tmp) = () ;`
46
47			`foreach my $l ( @{$list} )`
48			`{`
49			`my $i = 1 ;`
50			`foreach my $t (@tmp)`
51			`{`
52			`if ( $t eq $l )`
53			`{`
54			`$i = 0 ;`
55			`last ;`
56			`}`
57			`}`
58			`push @tmp,$l if ($i) ;`
59			`}`
60
61			`@{$list} = @tmp ;`
62			`}`
63
64			`sub find_root`
65			`{`
66			`$top_builddir = "." ;`
67			`$subdir="";`
68			my $pwd = `pwd`; chomp $pwd;
69			`$pwd .= "/" ;`
70			`my $len ;`
71
72			`if ( -f "configure.in" ) { return $top_builddir ; }`
73			`my $i = rindex($pwd,'/');`
74
75			`$len = $i;`
76			`$pwd = substr($pwd,0,$len);`
77			`$i = rindex($pwd,'/');`
78			`$subdir = substr($pwd,$i+1,$len - 1);`
79			`$top_builddir = ".." ;`
80
81			`while( -d "$top_builddir" )`
82			`{`
83			`if ( -f "${top_builddir}/configure.in" )`
84			`{`
85			`return $top_builddir ;`
86			`}`
87			`$len=$i;`
88			`$pwd = substr($pwd,0,$len);`
89			`$i = rindex($pwd,'/');`
90			`$subdir = substr($pwd,$i+1,$len - 1) . "/$subdir";`
91			`$top_builddir .= "/.." ;`
92			`} ;`
93			`die "Can't find configure.in\n" ;`
94			`}`
95
96			`find_root();`
97
98			`my @buffer = () ;`
99
100			`sub subst_line`
101			`{`
102			`# substitute obsolete variables`
103			`if ( /^([^\s]*)[\s]+$/o )`
104			`{ # strip trailing spaces`
105			`$_ = "$1\n";`
106			`}`
107			`if ( /^(.)MKLIB(.)$/o )`
108			`{`
109			`s/MKLIB/RANLIB/g ;`
110			`}`
111			`if ( /^(.)\$\(INSTINCFLAGS\)(.)$/o )`
112			`{`
113			`s/\$\(INSTINCFLAGS\)/-m 644/g ;`
114			`}`
115			`if ( /^(.)ASM(_FILES\|_PIECES\|_O_FILES)(.)$/o )`
116			`{`
117			`s/ASM_FILES/S_FILES/g ;`
118			`s/ASM_PIECES/S_PIECES/g ;`
119			`s/ASM_O_FILES/S_O_FILES/g ;`
120			`print STDERR "ASM: $_" if ( $verbose > 0) ;`
121			`}`
122			`if ( /^(.)MP_PIECES(.)$/o )`
123			`{ # HACK: this is not always correct`
124			`s/MP_PIECES/MP_C_PIECES/g ;`
125			`print STDERR "MP_PIECES: $_" if ( $verbose > 0 );`
126			`}`
127			`if ( /^(.)\$\(RTEMS_BSP\)(.)$/o )`
128			`{`
129			`s/\$\(RTEMS_BSP\)/\@RTEMS_BSP\@/g ;`
130			`}`
131			`if ( /^(.)\$\(RTEMS_ROOT\)\/mkinstalldirs(.)$/o )`
132			`{`
133			`$_ = "$1\$\(mkinstalldirs\)$2\n" ;`
134			`}`
135			`if ( /^(.)\$\{(.)_FILES\}(.*)$/o )`
136			`{`
137			`$_ = "$1\$\($2_FILES\)$3\n" ;`
138			`}`
139			`if ( /^(.)\$\{(.)_PIECES\}(.*)$/o )`
140			`{`
141			`$_ = "$1\$\($2_PIECES\)$3\n" ;`
142			`}`
143			`if ( /^(.)\$\(PROJECT_ROOT\)\/\@RTEMS_BSP\@\/lib\/include(.)$/o )`
144			`{`
145			`$_ = "$1\$\(PROJECT_INCLUDE\)$2\n" ;`
146			`}`
147			`if ( /^(.)\$\{PROJECT_RELEASE\}(.)$/o )`
148			`{`
149			`$_ = "$1\$\(PROJECT_RELEASE\)$2\n" ;`
150			`}`
151			`if ( /^(.\$\(INSTALL_[A-Z]+\))[\s]+-m[\s]+([54])([0-9][0-9].)$/o )`
152			`{`
153			`my $v = $2 + 2 ;`
154			`$_ = "$1 -m $v$3\n" ;`
155			`}`
156			`if ( /^H_FILES[\s]=[\s]\$\(wildcard[\s]+\$\(srcdir\)\/\\.h\)[\s]$/o )`
157			`{`
158			my $files =`ls *.h 2>/dev/null`;
159			`print STDERR "WARNING: Replacing \"\(wildcard... in $_\n" ;`
160			`my $line = "H_FILES =";`
161			`my @l = split(' ',$files) ;`
162			`foreach(@l) { $line .= " \$\(srcdir\)/$_"; }`
163			`$line .= "\n" ;`
164			`$_ = "$line" ;`
165			`}`
166			`if ( /^(.)RTEMS_HAS_([A-Z]+)(.)$/o )`
167			`{`
168			`print STDERR "WARNING: Replacing RTEMS_HAS_$2 with HAS_$2\n" ;`
169			`$_ = "$1HAS_$2$3\n" ;`
170			`}`
171			`if ( /^[\s]\$[({]PGM[)}]:[\s](.)\$([({]SRCS[)}])(.)$/o )`
172			`{`
173			`$_ = "\$(PGM):$1$3\n" ;`
174			`}`
175			`if ( /^.\$\(make\-exe\).$/o )`
176			`{`
177			`$make_exe_seen = 1 ;`
178			`}`
179			`if ( /^.\$\(INSTALL_(DATA\|SCRIPT\|PROGRAM)\)(.)$/o )`
180			`{`
181			`$install_seen = 1 ;`
182			`}`
183			`}`
184
185			`{`
186			`# 1st PASS:`
187			`# * Read input file`
188			`# * concatenate multiple lines`
189			`# * Remove obsolete variables`
190
191			`my @ibuf = () ;`
192			`my $line = "" ;`
193
194			`while ( )`
195			`{`
196			`&subst_line ;`
197			`if ( /^(#.*)$/o )`
198			`{ # preserve comments`
199			`$line = "$_" ;`
200			`push @ibuf, $line ;`
201			`$line = "" ;`
202			`}`
203			`elsif ( /^.*\\$/o )`
204			`{ # multilines`
205			`chop ;`
206			`$line .= "$_\\" ;`
207			`}`
208			`else`
209			`{`
210			`$line .= "$_" ;`
211			`push @ibuf, $line ;`
212			`$line = "" ;`
213			`}`
214			`}`
215			`@buffer = @ibuf;`
216			`}`
217
218			`{`
219			`# 2nd PASS:`
220			`# * remove automatically generated lines`
221			`# * process some selected make rules`
222			`my $line = "" ;`
223			`my @tbuf = () ;`
224			`foreach (@buffer)`
225			`{`
226			`if ( /^[\t](.*)$/o )`
227			`{ # make rule production`
228			`my $line = $1 ;`
229			`tr/\\/ / ;`
230			`my @l = split(/;/,$_);`
231			`foreach (@l)`
232			`{ # try to get installation directories`
233			`if ( /^.\$\(mkinstalldirs\).\s\$\(INSTALLDIRS\)$/o )`
234			`{`
235			`}`
236			`elsif ( /^.\$\(mkinstalldirs\).\s([^\s]+)$/o )`
237			`{`
238			`push @installdirs, "$1" ;`
239			`}`
240			`elsif ( /^.\$\(INSTALL_CHANGE\).\s([^\s]+)(\/[^\.\s]+\.[^\s\/]+)$/o )`
241			`{`
242			`# print STDERR "WARNING - DIR1: $1 <$2> " ;`
243			`push @installdirs, "$1" ;`
244			`}`
245			`elsif ( /^.\$\(INSTALL_CHANGE\).\s([^\s]+)$/o )`
246			`{`
247			`# print STDERR "DIR2 $1\n" ;`
248			`push @installdirs, "$1" ;`
249			`}`
250			`}`
251			`push @tbuf, "�3$line"`
252			`}`
253			`elsif ( /^[\s]\#.$/o )`
254			`{ # comment`
255			`push @tbuf, "$_" ;`
256			`}`
257			`elsif ( /^[\s]([A-Z_])_FILES[\s]\=[\s](.*)$/o )`
258			`{ # *_FILES = ... Macros`
259			`if ( /^[\s]([A-Z_]_\|)(CC\|C\|EQ\|H\|I\|O\|S\|X)_FILES[\s]\=[\s](.*)$/o )`
260			`{`
261			`# print STDERR "FILES: <$1>--<$2>--<$3>\n" ;`
262			`my $f = "$1$2_FILES" ;`
263			`${"var_$f"}="$3" ;`
264			`if ( ( $experimental > 0 )`
265			`and ( ( "$2" eq "C" ) or ( "$2" eq "CC" ) or ( "$2" eq "S" )`
266			`or ( "$2" eq "I" ) or ( "$2" eq "H" ) ) )`
267			`{`
268			`my $p = "$1$2_PIECES" ;`
269			`if ( not defined ${"var_$p"} )`
270			`{`
271			`print STDERR "ADDING $p\n" ;`
272			`${"var_$p"} = "" ;`
273			`push @tbuf, "�4$p\n" ;`
274			`push @pieces, "$p" ;`
275			`}`
276			`}`
277			`# place a marker`
278			`push @tbuf, "�4$f\n" ;`
279			`push @files, "$f" ;`
280			`}`
281			`else`
282			`{ # found a bug`
283			`print STDERR "UNKNOWN _FILES: $_\n" ;`
284			`my $f = "$1_FILES" ;`
285			`${"var_$f"}="$2" ;`
286			`# place a marker`
287			`push @tbuf, "�4$f\n" ;`
288			`push @files, "$f" ;`
289			`}`
290			`}`
291			`elsif ( /^[\s]([A-Z_])_PIECES[\s]\=[\s](.*)$/o )`
292			`{ # *_PIECES = ... Macros`
293			`if ( /^[\s]([A-Z][A-Z0-9_]_\|)(CC\|C\|EQ\|H\|I\|O\|S\|X\|REL)_PIECES[\s]\=[\s](.*)$/o )`
294			`{`
295			`my $p = "$1$2_PIECES" ;`
296
297			`if ( not defined ${"var_$p"} )`
298			`{`
299			`${"var_$p"} = "$3" ;`
300			`push @tbuf, "�4$p\n" ;`
301			`push @pieces, "$p" ;`
302			`}`
303			`else`
304			`{`
305			`${"var_$p"} .= " $3" ;`
306			`}`
307			`}`
308			`elsif ( /^[\s](BSP\|CPU\|GENERIC)_PIECES[\s]\=[\s](.)$/o )`
309			`{ # Explicit exceptions from the *_PIECES naming conventions`
310			`# They should better be replaced in future`
311			`my $p = "$1_PIECES" ;`
312			`${"var_$p"}="$2" ;`
313			`# place a marker`
314			`push @tbuf, "�4$p\n" ;`
315			`push @pieces, "$p" ;`
316			`}`
317			`else`
318			`{ # found a bug`
319			`print STDERR "UNKNOWN _PIECES: $_\n" ;`
320			`my $p = "$1_PIECES" ;`
321			`${"var_$p"}="$2" ;`
322			`# place a marker`
323			`push @tbuf, "�4$p\n" ;`
324			`push @pieces, "$p" ;`
325			`}`
326			`}`
327			`elsif ( /^[\s]([A-Z_]+)_PIECES_([^\s]+)_V[\s]\=[\s](.)$/o )`
328			`{ # *_PIECES_.._V = ... Macros`
329			`if ( /^[\s]([A-Z][A-Z0-9_]_\|)(CC\|C\|EQ\|H\|I\|O\|S\|X\|REL)_PIECES_([^\s]+)_V[\s]\=[\s](.*)$/o )`
330			`{`
331			`my @l = split(/_/,$3);`
332			`my $v = "$1$2-$#l" ;`
333			`if ( not defined @{"variants_$v"} ) { push @variants, "$v" ; }`
334
335			`my $p = "$1$2_PIECES_$3_V" ;`
336			`push @{"variants_${v}"}, "$p" ;`
337
338			`${"var_$p"}="$4" ;`
339			`# place a marker`
340			`push @tbuf, "�4$p\n" ;`
341			`push @pieces, "$p" ;`
342			`}`
343			`else`
344			`{ # found a bug`
345			`print STDERR "UNKNOWN _PIECES: $_\n" ;`
346			`my $p = "$1_PIECES" ;`
347			`${"var_$p"}="$2" ;`
348			`# place a marker`
349			`push @tbuf, "�4$p\n" ;`
350			`push @pieces, "$p" ;`
351			`}`
352			`}`
353			`elsif ( /^[\s]([^\s+=]+)[\s]\=[\s](.)$/o )`
354			`{ # makefile variables`
355			`if ( ( "$1" eq "subdir" )`
356			`or ( "$1" eq "top_srcdir" )`
357			`or ( "$1" eq "top_builddir" )`
358			`or ( "$1" eq "RTEMS_ROOT" )`
359			`or ( "$1" eq "PROJECT_ROOT" )`
360			`or ( "$1" eq "INSTALL" )`
361			`or ( "$1" eq "PACKHEX" )`
362			`or ( "$1" eq "INSTALL_CHANGE" )`
363			`or ( "$1" eq "mkinstalldirs" )`
364			`or ( "$1" eq "ACLOCAL" )`
365			`or ( "$1" eq "AUTOCONF" )`
366			`or ( "$1" eq "ACLOCAL_M4" )`
367			`or ( "$1" eq "ACLOCAL_AMFLAGS" )`
368			`)`
369			`{`
370			`print STDERR "REMOVE: $1\n" if $verbose ;`
371			`}`
372			`elsif ( "$1" eq "srcdir" )`
373			`{ # place marker`
374			`push @tbuf, "�0\n";`
375			`}`
376			`elsif ( "$1" eq "INSTALLDIRS" )`
377			`{ # process the block`
378			`my $input = $2 ;`
379			`$input =~ s/\\\\/ /g ;`
380			`my @l = split(' ',$input);`
381			`foreach (@l)`
382			`{`
383			`if ( /[\s]([^\s]+)[\s]$/o )`
384			`{`
385			`push @installdirs, "$1" ;`
386			`}`
387			`}`
388			`}`
389			`else`
390			`{`
391			`# print STDERR "MACRO: <$1> = <$2>\n";`
392			`my $p = "$1" ;`
393			`${"var_$p"}="$2" ;`
394			`# place a marker`
395			`push @tbuf, "�4$p\n" ;`
396			`push @vars, "$p" ;`
397			`}`
398			`}`
399			`elsif ( /^[\s]([^\s+=]+)[\s]\+\=[\s](.)$/o )`
400			`{ # makefile variable addition`
401			`# print STDERR "MACRO: <$1> += <$2>\n";`
402			`my $p = "$1" ;`
403			`if ( not defined ${"var_$p+"} )`
404			`{`
405			`# place a marker`
406			`push @tbuf, "�5$p\n" ;`
407			`push @vars, "$p+" ;`
408			`}`
409			`else`
410			`{`
411			`print STDERR "WARNING += $_" ;`
412			`}`
413			`${"var_$p+"} .=" $2" ;`
414			`}`
415			`elsif ( /^[\s]*(\@[^\s]+\@)$/o )`
416			`{ # autoconf variable`
417			`if ( "$1" eq "\@SET_MAKE\@" )`
418			`{`
419			`}`
420			`else`
421			`{`
422			`push @tbuf, "$1\n" ;`
423			`}`
424			`}`
425			`elsif ( /^[\s]include[\s]+(.)$/o )`
426			`{ # include line`
427			`push @tbuf, "$_" ;`
428			`if ( /^include[\s\t].(directory\|leaf\|lib)\.cfg.*$/o )`
429			`{`
430			`push @tbuf, "�1\n" ;`
431			`push @tbuf, "PACKHEX = \@PACKHEX\@\n" if ( $make_exe_seen == 1 ) ;`
432			`push @tbuf, "�2\n" ;`
433			`}`
434			`}`
435			`elsif ( /^[\s](ifeq\|ifneq\|else\|endif)[\s]+(.)$/o )`
436			`{ # gmake conditionals`
437			`# Most of them are removed, but we still have some :-`
438			`push @tbuf, "$1 $2\n" ;`
439			`}`
440			`elsif ( /^\@._(TRUE\|FALSE)\@.$/o )`
441			`{ # automake conditionals`
442			`# HACK: Don't know how to handle them, so let's pass them through`
443			`push @tbuf, "$_" ;`
444			`}`
445			`elsif ( /^[\s]([^:]+)[\s](:[:])[\s](.*)$/o )`
446			`{`
447			`if ( "$2" eq "::" )`
448			`{`
449			`# Warn about "::"-rules`
450			`# Will be silently removed below.`
451			`print STDERR "WARNING: Removing \"::\" in RULE $_\n" ;`
452			`}`
453
454			`if ( ( "$1" eq "Makefile" )`
455			`or ( "$1" eq "\$\(INSTALLDIRS\)" )`
456			`or ( "$1" eq "\$\(ACLOCAL_M4\)" )`
457			`or ( "$1" eq "config\.status" )`
458			`or ( "$1" eq "\$\(srcdir\)/configure" )`
459			`)`
460			`{ # delete entry`
461			`shift @buffer ;`
462			`}`
463			`elsif ( ( "$1" eq "all" )`
464			`or ( "$1" eq "preinstall" ) )`
465			`{`
466			`# Note the dependencies`
467			`# Not yet exploited, but could be useful for dependency`
468			`# tracking in future`
469			`if ( defined ${"var_$1"} )`
470			`{ ${"var_$1"} .= " $3" ; }`
471			`else`
472			`{ ${"var_$1"} = "$3" ; }`
473			`push @tbuf, "$1: $3\n" ;`
474			`}`
475			`else`
476			`{ # make rule`
477			`push @tbuf, "$1: $3\n" ;`
478			`}`
479			`}`
480			`elsif ( /^[\s]*$/o )`
481			`{ # empty line`
482			`push @tbuf, "\n" ;`
483			`}`
484			`else`
485			`{`
486			`die "PASS 2: Unhandled $_" ;`
487			`}`
488			`}`
489			`@buffer = @tbuf ;`
490			`@tbuf = @installdirs ;`
491			`@installdirs = () ;`
492			`foreach ( @tbuf )`
493			`{`
494			`if ( /^([^\s]+)(\/[^\.\s]+\.[^\s\/]+)$/o )`
495			`{`
496			`print STDERR "WARNING - stripping of file: $1 <$2> " if ( $verbose > 1 );`
497			`push @installdirs, "$1" ;`
498			`}`
499			`else`
500			`{`
501			`push @installdirs, "$_" ;`
502			`}`
503			`}`
504			`purge \@installdirs ;`
505			`purge \@pieces ;`
506			`}`
507
508			`# A fragment to debug conditionals`
509			`#foreach( @variants )`
510			`#{`
511			`# my $v = $_ ;`
512			`# print STDERR "VARIANT: $v\n";`
513			`# foreach (@{"variants_${v}"})`
514			`# {`
515			`# print STDERR "* $_\n;" ;`
516			`# }`
517			`#}`
518
519			`# sanity check on *_FILES macros`
520			`# too fragile for the time being,`
521			`# therefore disabled by default`
522			`if ( $experimental > 1 )`
523			`{`
524			`foreach( @files )`
525			`{`
526			`my $file = "$_" ;`
527			`my $line = ${"var_$_"} ;`
528			`$line =~ tr /\\/ /;`
529			`my @l = split(' ',$line);`
530			`my @o = () ;`
531			`foreach (@l)`
532			`{`
533			`if ( /^([^\.]+)\.([a-z]+)$/o )`
534			`{`
535			`print STDERR "$file: *.$2 in $_\n" ;`
536			`}`
537			`elsif ( /^\$\(.*\)$/o )`
538			`{`
539			`print STDERR "$file: REF: $_\n" ;`
540			`}`
541			`else`
542			`{`
543			`print STDERR "$file: UNHANDLED: $_\n" ;`
544			`}`
545			`}`
546			`}`
547			`}`
548
549			`# print STDERR "PASS 2: @buffer" ;`
550
551			`{`
552			`# PASS 3:`
553			`# * output to new Makefile`
554			`# * prettyprint newlines`
555
556			`my $nl_seen = 0 ;`
557			`foreach ( @buffer )`
558			`{`
559			`if ( /^$/o )`
560			`{`
561			`$nl_seen++ ;`
562			`print "\n" if ( $nl_seen < 2 );`
563			`}`
564			`elsif ( /^\�0$/o )`
565			`{`
566			`print "\@SET_MAKE\@\n" ;`
567			`print "srcdir = \@srcdir\@\n" ;`
568			`print "top_srcdir = \@top_srcdir\@\n" ;`
569			`print "top_builddir = $top_builddir\n" ;`
570			`if ( "$subdir" )`
571			`{`
572			`print "subdir = $subdir\n";`
573			`}`
574			`else`
575			`{`
576			`print "\nACLOCAL = aclocal\n" ;`
577			`print "AUTOCONF = autoconf\n" ;`
578			`print "ACLOCAL_M4 = \$(top_srcdir)/aclocal.m4\n" ;`
579			`print "ACLOCAL_AMFLAGS = -I \@RTEMS_TOPdir\@/aclocal\n" ;`
580			`}`
581			`print "\nRTEMS_ROOT = \@RTEMS_ROOT\@\n" ;`
582			`print "PROJECT_ROOT = \@PROJECT_ROOT\@\n\n" ;`
583			`$nl_seen = 1 ;`
584			`}`
585			`elsif ( /^\�1$/o )`
586			`{`
587			`print "\n" ;`
588			`print "INSTALL = \@INSTALL\@\n" if ( $install_seen > 0 );`
589			`print "INSTALL_CHANGE = \@INSTALL_CHANGE\@\n" ;`
590			`$nl_seen = 0 ;`
591			`}`
592			`elsif ( /^\�2$/o )`
593			`{ # Handle installdirs related items`
594			`if ( $#installdirs >= 0 )`
595			`{`
596			`print "mkinstalldirs = \$(SHELL) \$(top_srcdir)/\@RTEMS_TOPdir\@/mkinstalldirs\n\n" ;`
597			`my $line = join( ' ',@installdirs );`
598			`&print_macro( "INSTALLDIRS =", $line );`
599			`print "\n\$(INSTALLDIRS):\n\t\@\$(mkinstalldirs) \$(INSTALLDIRS)\n\n" ;`
600			`$nl_seen = 1 ;`
601			`}`
602			`}`
603			`elsif ( /^\�3(.*)$/o )`
604			`{ # pretty print a shell script fragment/make production`
605			`my @l = split(/\\\\/,$1);`
606			`if ( $#l >= 0 ) { my $i = shift @l ; print "\t$i"; }`
607			`foreach( @l ) { print "\\\n$_"; }`
608			`print "\n" ;`
609			`$nl_seen = 0 ;`
610			`}`
611			`elsif ( /^\�4(.*)$/o )`
612			`{ # pretty print a make variable`
613			`&print_macro( "$1 =", ${"var_$1"} );`
614			`$nl_seen = 0 ;`
615			`}`
616			`elsif ( /^\�5(.*)$/o )`
617			`{ # pretty print an addition to a make variable`
618			`&print_macro( "$1 +=", ${"var_$1+"}) ;`
619			`$nl_seen = 0 ;`
620			`}`
621			`else`
622			`{`
623			`$nl_seen = 0 ;`
624			`print "$_" ;`
625			`}`
626			`}`
627			`}`
628
629			`# Add rules for config.status generated files`
630			`if ( "$build_pgms_seen" )`
631			`{`
632			`print "%: \$(srcdir)/%.in \$(top_builddir)/config.status\n" ;`
633			`print " cd \$(top_builddir) \\\n" ;`
634			`print " && CONFIG_FILES=" ;`
635			`print "\$(subdir)/" if ( "$subdir" );`
636			`print "\$@ CONFIG_HEADERS= \$(SHELL) ./config.status\n";`
637			`}`
638			`else`
639			`{`
640			`print "Makefile: \$(srcdir)/Makefile.in \$(top_builddir)/config.status\n" ;`
641			`print "\tcd \$(top_builddir) \\\n" ;`
642			`print "\t && CONFIG_FILES=" ;`
643			`print "\$(subdir)/" if ( "$subdir" );`
644			`print "\$@ CONFIG_HEADERS= \$(SHELL) ./config.status\n";`
645			`}`
646
647			`if ( ! "$subdir" )`
648			`{`
649			`print "\n\$(ACLOCAL_M4): \@MAINTAINER_MODE_TRUE\@ configure.in\n" ;`
650			`print "\tcd \$(srcdir) && \$(ACLOCAL) \$(ACLOCAL_AMFLAGS)\n" ;`
651			`print "\nconfig.status: \$(srcdir)/configure \$(CONFIG_STATUS_DEPENDENCIES)\n" ;`
652			`print "\t\$(SHELL) ./config.status --recheck\n" ;`
653			`print "\$(srcdir)/configure: \@MAINTAINER_MODE_TRUE\@\$(srcdir)/configure.in";`
654			`print " \$(ACLOCAL_M4)\n" ;`
655			`print "\tcd \$(srcdir) && \$(AUTOCONF)\n"`
656			`}`
657
658			`exit 0 ;`
659
660			`sub print_macro($$)`
661			`{`
662			`my ($line,$input) = @_ ;`
663			`$input =~ s/\\\\/ /g;`
664			`my @l = split(' ',$input);`
665
666			`foreach (@l) {`
667			`if ( ( length($line) + length($_) ) < 76 )`
668			`{`
669			`$line .= " $_";`
670			`}`
671			`else`
672			`{`
673			`print "$line \\\n";`
674			`$line = " $_" ;`
675			`}`
676			`}`
677			`print "$line\n" ;`
678			`}`
679