Copy the KDE 3.5 branch to branches/trinity for new KDE 3.5 features.

BUG:215923


git-svn-id: svn://anonsvn.kde.org/home/kde/branches/trinity/kdesdk@1054174 283d02a7-25f6-0310-bc7c-ecb5cbfe19da

1 files changed, 756 insertions, 0 deletions

diff --git a/scripts/fixkdeincludes b/scripts/fixkdeincludes
new file mode 100644
index 00000000..54e4e9f6
--- /dev/null
+++ b/scripts/fixkdeincludes
@@ -0,0 +1,756 @@
+#!/usr/bin/perl -w
+# tries to reduce the number of includes in KDE source files
+# (c) 2001-2003 Dirk Mueller <mueller@kde.org>
+
+use File::Basename;
+use Cwd;
+
+# declaration of useful subroutines
+sub find_src_includes($);
+sub find_fixable_sources ($);
+sub find_fixable_headers($);
+sub find_removable_includes ($);
+sub warn_before_modifying ($);
+sub remove_include ($$$);
+sub replace_include ($$$);
+sub replace_include_type ($$);
+sub fix_duplicates($);
+sub fix_compat_includes($);
+sub fix_unnecessary($);
+sub fix_include_type($);
+sub copy_file($$);
+sub process_source_file($);
+sub extract_gcc_error($);
+
+# some global variables
+$verbose = 0; # turns on debugging
+$modify = 0;  # if 1 it should try to fix the files as well
+$experimental = 0; # try&error if an include is obsolete (slow!!)
+@explicitfiles = (); # filled in if passing files on the command line
+
+# statistic variables
+$exp_success = 0;
+$exp_failure = 0;
+
+while (defined ($ARGV[0]))
+{
+  $_ = shift;
+  if (/^--help$|^-h$/)  {
+    print "Usage: fixkdeincludes [--verbose | -v] [--experimental | -e ] [--modify | -m ]\n";
+    exit 0;
+  }
+  elsif (/^--verbose$|^-v$/) {
+    $verbose = 1;       # Oh is there a problem...?
+  }
+  elsif (/^--modify$|^-m$/) {
+    $modify = 1;
+  }
+  elsif (/^--experimental$|^-e$/) {
+    $modify = 1;
+    $experimental = 1;
+  }
+  elsif (!/^-/) {
+    push @explicitfiles, $_;
+  }
+}
+
+$cppExt     = "(cpp|cc|cxx|C|c\\+\\+)";
+$hExt       = "(h|H|hh|hxx|hpp|h\\+\\+)";
+
+# list of compat headers. scroll down ... much of boring stuff here..
+%compatmap = (
+ 'qapp.h'        =>  "qapplication.h",
+ 'qarray.h'      =>  "qmemarray.h",
+ 'qbitarry.h'    =>  "qbitarray.h",
+ 'qbttngrp.h'    =>  "qbuttongroup.h",
+ 'qchkbox.h'     =>  "qcheckbox.h",
+ 'qclipbrd.h'    =>  "qclipboard.h",
+ 'qcollect.h'    =>  "qptrcollection.h",
+ 'qcollection.h' =>  "qptrcollection.h",
+ 'qcombo.h'      =>  "qcombobox.h",
+ 'qconnect.h'    =>  "qconnection.h",
+ 'qdatetm.h'     =>  "qdatetime.h",
+ 'qdrawutl.h'    =>  "qdrawutil.h",
+ 'qdstream.h'    =>  "qdatastream.h",
+ 'qfiledef.h'    =>  "private/qfiledefs_p.h",
+ 'qfiledlg.h'    =>  "qfiledialog.h",
+ 'qfileinf.h'    =>  "qfileinfo.h",
+ 'qfontdta.h'    =>  "qfontdata.h",
+ 'qfontinf.h'    =>  "qfontinfo.h",
+ 'qfontmet.h'    =>  "qfontmetrics.h",
+ 'qgrpbox.h'     =>  "qgroupbox.h",
+ 'qintcach.h'    =>  "qintcache.h",
+ 'qiodev.h'      =>  "qiodevice.h",
+ 'qlcdnum.h'     =>  "qlcdnumber.h",
+ 'qlined.h'      =>  "qlineedit.h",
+ 'qlist.h'       =>  "qptrlist.h",
+ 'qmenudta.h'    =>  "qmenudata.h",
+ 'qmetaobj.h'    =>  "qmetaobject.h",
+ 'qmlined.h'     =>  "qtmultilineedit.h",
+ 'qmsgbox.h'     =>  "qmessagebox.h",
+ 'qmultilinedit.h' =>  "qmultilineedit.h",
+ 'qobjcoll.h'    =>  "qobjectlist.h>\n\#include <qobjectdict.h",
+ 'qobjdefs.h'    =>  "qobjectdefs.h",
+ 'qpaintd.h'     =>  "qpaintdevice.h",
+ 'qpaintdc.h'    =>  "qpaintdevicedefs.h",
+ 'qpdevmet.h'    =>  "qpaintdevicemetrics.h",
+ 'qpmcache.h'    =>  "qpixmapcache.h",
+ 'qpntarry.h'    =>  "qpointarray.h",
+ 'qpopmenu.h'    =>  "qpopupmenu.h",
+ 'qprndlg.h'     =>  "qprintdialog.h",
+ 'qprogbar.h'    =>  "qprogressbar.h",
+ 'qprogdlg.h'    =>  "qprogressdialog.h",
+ 'qpsprn.h'      =>  "private/qpsprinter_p.h",
+ 'qpushbt.h'     =>  "qpushbutton.h",
+ 'qqueue.h'      =>  "qptrqueue.h",
+ 'qradiobt.h'    =>  "qradiobutton.h",
+ 'qrangect.h'    =>  "qrangecontrol.h",
+ 'qscrbar.h'     =>  "qscrollbar.h",
+ 'qsocknot.h'    =>  "qsocketnotifier.h",
+ 'qstack.h'      =>  "qptrstack.h",
+ 'qtabdlg.h'     =>  "qtabdialog.h",
+ 'qtstream.h'    =>  "qtextstream.h",
+ 'qvector.h'     =>  "qptrvector.h",
+ 'qwidcoll.h'    =>  "qwidgetlist.h>\n\#include <qwidgetintdict.h",
+ 'qwindefs.h'    =>  "qwindowdefs.h",
+
+# and now the KDE specific compat includes
+ 'kapp.h'        =>  "kapplication.h",
+ 'kstddirs.h'    =>  "kstandarddirs.h",
+ 'kuniqueapp.h'  =>  "kuniqueapplication.h",
+ 'ktmainwindow.h'=>  "kmainwindow.h",
+ 'kcolorbtn.h'   =>  "kcolorbutton.h",
+ 'kcolordlg.h'   =>  "kcolordialog.h",
+ 'kxmlgui.h'     =>  "kxmlguifactory.h",
+ 'kdebugclasses.h' => "kdebug.h",
+);
+
+
+# now it starts to get interesting again
+
+# Look for source files in the given directory ($dir, first parameter)
+sub find_fixable_sources ($)
+{
+  # for now I grep the directory (requires srcdir==builddir)
+  # actually it should read the Makefile and
+  # find the _SOURCES / _OBJECTS tags that are put there by
+  # automake and am_edit, but thats an excercise to the reader ;-)
+
+  my ( $dir ) = @_;
+
+  opendir (DIR, "$dir") || die "Couldn't read '$dir'\n";
+  my @sources = grep { /^.*\.$cppExt$/o } readdir(DIR);
+  closedir(DIR);
+  
+  print "found sources: [ " . join(' ', @sources) . " ] in $dir\n" if ($verbose);
+
+  # prefix them with $dir
+  my @retsources = ();
+  foreach $source(@sources) {
+    push @retsources, "$dir/$source";
+  }
+  
+  return @retsources;
+}
+
+# Look for header files in the given directory ($dir, first parameter)
+sub find_fixable_headers ($)
+{
+  # for now I grep the directory (requires srcdir==builddir)
+  # actually it should read the Makefile and
+  # find the _HEADERS tags that are put there by
+  # automake and am_edit, but thats an excercise to the reader ;-)
+
+  my ( $dir ) = @_;
+
+  opendir (DIR, "$dir") || die "Couldn't read '$dir'\n";
+  my @headers = grep { /^.*\.$hExt$/o } readdir(DIR);
+  closedir(DIR);
+  
+  print "found headers: [ " . join(' ', @headers) . " ] in $dir\n" if ($verbose);
+
+  # prefix them with $dir
+  my @retheaders = ();
+  foreach $source(@headers) {
+    push @retheaders, "$dir/$source";
+  }
+  
+  return @retheaders;
+}
+
+sub find_removable_includes ($)
+{
+  my $srcfile = shift @_;
+  open(SRC, "< $srcfile") || die "find_removable_includes: couldn't open '$srcfile'\n";
+  
+  my @includes = ();
+
+  # we skip all includes that are somehow ifdefed
+
+  my $cpplevel = 0;
+  $cpplevel = -1 if ($srcfile=~m/^.*\.$hExt$/); # plan for header-protection #ifndef/#define/#endif
+  while (<SRC>) {
+    if ($_ =~ m/^\#if/) {
+      $cpplevel = $cpplevel + 1;
+      next;
+    }
+    if ($_ =~ m/^\#endif/) {
+      $cpplevel = $cpplevel - 1;
+      next;
+    }
+    #if ($cpplevel == 0 && $_ =~ m/^\#include\s*[\"<]([qk]\S*\.h)[\">]\S*/) {
+    if ($cpplevel == 0 && (($_ =~ m/^\#include\s*\"(\S+\.h)\"\S*/) || ($_ =~ m/^\#include\s*\<([qk]\S+.h)\>\S*/)))  {
+      push @includes, $1;
+      next;
+    }
+  }
+  close SRC;
+
+  print "No fixable includes found in $srcfile\n" if ($verbose and not @includes);
+  print "found includes: [ " . join(' ', @includes) . " ]\n" if ($verbose and @includes);
+
+  return @includes;
+}
+
+sub find_installed_headers($)
+{
+  my $sdir = shift @_;
+  my @includes = ();
+
+  open(I, "<$sdir/Makefile.am") || die "couldn't open $sdir/Makefile.am $!";
+
+  my $data = join('', <I>);
+  $data =~ s/\\\s*\n/ /g;
+
+  # now search for not installed headers
+  foreach my $line (split /^/, $data) {
+    if($line =~ /^(\w+)_HEADERS\s*=(.*)$/) {
+      next if $1 eq "noinst";
+      push @includes, split (' ', $2);
+    }
+  }
+  close(I);
+  return @includes;
+}
+
+# first parameter: srcfile
+# second parameter: include to remove
+# third parameter is the duplicate level: this include is removed $level times
+sub remove_include ($$$)
+{
+  my $srcfile = shift @_;
+  my $include = quotemeta(shift @_);
+  my $level = shift @_;
+
+  die "$srcfile is not read/writeable!\n" if( ! -r $srcfile || ! -w $srcfile);
+  open(I, "< $srcfile") or die "remove_include: couldn't open '$srcfile'\n";
+  my @contents = <I>;
+  close(I);
+
+  # ok, CPU time doesn't count so we do it the lazy way
+  # we should remove the last occurence of the include in the
+  # file because in case its a duplicate removing the first
+  # one could make a difference. 
+  my @revcontents = reverse @contents;
+  @contents = ();
+
+  # we skip all inludes that are somehow ifdefed
+  # note the logic is reversed because it operates
+  # on reversed lines :)
+  my $cpplevel = 0;
+  $cpplevel = -1 if ($srcfile=~m/^.*\.$hExt$/); # plan for header-protection #ifndef/#define/#endif
+  foreach $line (@revcontents) {
+    if ($line =~ m/^\#if/) {
+      $cpplevel = $cpplevel - 1;
+      push @contents, $line;
+      next;
+    }
+
+    if ($line =~ m/^\#endif/) {
+      $cpplevel = $cpplevel + 1;
+      push @contents, $line;
+      next;
+    }
+
+    if ($level && $cpplevel == 0 && 
+       (($line =~ m/^\#include\s*\"$include\"\S*/) || ($line =~ m/^\#include\s*\<$include\>\S*/)))  {
+      $level = $level - 1;
+      # skipping the line..
+      next;
+    }
+
+    push @contents, $line;
+  }
+
+  # now we have the fixed contents in @contents, although in wrong order
+  open(O, "> $srcfile") || die "remove_include: couldn't open '$srcfile' for writing\n";
+  print O reverse @contents;
+  close (O);
+}
+
+# first parameter: srcfile
+# second parameter: include to replace
+# third parameter the include file to replace it with
+sub replace_include ($$$)
+{
+  my $srcfile = shift @_;
+  my $include = quotemeta(shift @_);
+  my $destinclude = shift @_;
+
+  die "$srcfile is not read/writeable!\n" if( ! -r $srcfile || ! -w $srcfile);
+  open(I, "< $srcfile") or die "replace_include: couldn't open '$srcfile'\n";
+  my @contents = <I>;
+  close(I);
+
+  # ok, CPU time doesn't count so we do it the lazy way
+  my @revcontents = reverse @contents;
+  @contents = ();
+
+  # we skip all inludes that are somehow ifdefed
+  # note the logic is reversed because it operates
+  # on reversed lines :)
+  my $cpplevel = 0;
+  $cpplevel = -1 if ($srcfile=~m/^.*\.$hExt$/); # plan for header-protection #ifndef/#define/#endif
+  foreach $line (@revcontents) {
+    if ($line =~ m/^\#if/) {
+      $cpplevel = $cpplevel - 1;
+      push @contents, $line;
+      next;
+    }
+
+    if ($line =~ m/^\#endif/) {
+      $cpplevel = $cpplevel + 1;
+      push @contents, $line;
+      next;
+    }
+
+    if ($cpplevel == 0 &&
+      (($line =~ m/^\#include\s*\"$include\"\S*/) || ($line =~ m/^\#include\s*\<$include\>\S*/)))
+    {
+      print "HAH! found $include to replace in $srcfile!\n" if($verbose);
+      $line =~ s/(\#include\s*[\"<])$include([\">]\S*)/$1$destinclude$2/;
+    }
+
+    push @contents, $line;
+  }
+
+  # now we have the fixed contents in @contents
+  open(O, "> $srcfile") || die "replace_include: couldn't open '$srcfile' for writing\n";
+  print O reverse @contents;
+  close (O);
+}
+
+# fixes #include <foo.h> -> #include "foo.h"
+sub replace_include_type ($$)
+{
+  my ($srcfile, $include) = @_;
+
+  die "$srcfile is not read/writeable!\n" if( ! -r $srcfile || ! -w $srcfile);
+  open(I, "< $srcfile") or die "replace_include: couldn't open '$srcfile'\n";
+  my @contents = <I>;
+  close(I);
+
+  grep(s/^(\#include)\s*<$include>(.*)$/$1 \"$include\"$2/, @contents);
+
+  # now we have the fixed contents in @contents
+  open(O, "> $srcfile") || die "replace_include: couldn't open '$srcfile' for writing\n";
+  print O @contents;
+  close (O);
+}
+
+sub fix_duplicates($)
+{
+  my $srcfile = shift @_;
+
+  my @includes = &find_removable_includes($srcfile);
+
+  my %inclMap = ();
+
+  # initialize
+  foreach $include (@includes) {
+    $inclMap{$include} = 0;
+  }
+  
+  # count number of occurences
+  foreach $include (@includes) {
+    $inclMap{$include} = $inclMap{$include} + 1;
+  }
+  
+  # check for duplicates
+  foreach $include (keys %inclMap) {
+    next if $inclMap{$include} <= 1;
+    
+    print "$srcfile: duplicate level ". $inclMap{$include} .": ". $include ."\n";
+
+    &remove_include($srcfile, $include, $inclMap{$include} - 1) if($modify);
+  }
+}
+
+sub extract_gcc_error($)
+{
+  my $out = shift;
+ 
+ # print "out: $out\n";
+
+  while ($out =~ m/^(.*?):([0-9]+):(.*)$/mg) # filename:lineno:message
+  {
+      my $field1 = $1 || "";
+      my $field2 = $2 || "";
+      my $field3 = $3 || "";
+
+ #     print "f1: $field1, f2: $field2, f3: $field3\n";
+
+      next if ($field3 =~ m/\s+warning:.*/);
+      next if ($field3 =~ m/^\s*$/);
+      return basename($field1);
+  }
+  return "BUG!";
+}
+
+sub fix_compat_includes($)
+{
+  my $srcfile = shift @_;
+
+  my @includes = &find_removable_includes($srcfile);
+
+  my %inclMap = ();
+
+  # initialize
+  foreach $include (@includes) {
+    $inclMap{$include} = 0;
+  }
+  
+  # count number of occurences
+  foreach $include (@includes) {
+    $inclMap{$include} = $inclMap{$include} + 1;
+  }
+  
+  # check for compat headers
+  foreach $include (keys %inclMap) {
+    if( defined $compatmap{$include}) {
+      print "$srcfile: compat header: $include, to be replaced by ". $compatmap{$include} ."\n";
+      &replace_include($srcfile, $include, $compatmap{$include}) if($modify);
+    }
+  }
+}
+
+sub fix_include_type($)
+{
+  my $srcfile = shift @_;
+  my $srcdir = dirname($srcfile);
+
+  open(I, "<$srcfile") || die "couldn't open $srcfile in _fix_include_type";
+  my @bracketincs = grep s/^\s*\#include\s*<([^>]+)>\s*$/$1/, <I>;
+  close(I);
+
+  foreach my $include (@bracketincs) {
+    next if (!(-r "$srcdir/$include"));
+    next if (grep (/^$include$/, @instheaders));
+    next if ($include eq "config.h"); # oh don't get me started on that
+
+    print "$srcfile: #include <$include> should use #include \"...\"\n";
+    &replace_include_type($srcfile, $include) if($modify);
+  }
+}
+
+# copies a file from src to dest, overwrites destination if exists
+sub copy_file($$)
+{
+  my $src = shift(@_);
+  my $dst = shift(@_);
+
+  open(I, "< $src") or die "copy_file: can't open $src for input\n";
+  my @fcontents = <I>;
+  close(I);
+  open(O, "> $dst") or die "copy_file: can't open $dst for output\n";
+  print O @fcontents;
+  close(O);
+}
+
+# interrupt handler for fix_unnecessary
+sub sighandler_fix_unnecessary()
+{
+  my($sig) = @_;
+  print "Caught a SIG$sig--shutting down after restoring $srcfile\n";
+  chdir($srcdir);
+  unlink $srcfile || warn "couldn't unlink $srcfile";
+  rename $localbackup, $srcfile || warn "couldn't rename $localbackup to $srcfile";
+  exit(1);
+}
+
+sub fix_unnecessary($)
+{
+  local $srcfile = shift @_;
+  local $srcdir = dirname($srcfile);
+
+  # find canonical path for srcdir
+  my $origdir = cwd;
+  chdir($srcdir);
+  $srcdir = cwd;
+  print "srcdir=$srcdir\n" if($verbose);
+
+  my $builddir = $srcdir;
+  my $makecmd = "make";
+  if (defined $ENV{"OBJ_REPLACEMENT"})
+  {
+    # we have to use sed here, because perl can't do s#a#b#
+    $builddir = `echo $srcdir | sed -e "\$OBJ_REPLACEMENT"`;
+    chomp $builddir;
+    $makecmd = "makeobj";
+  }
+  print "builddir=$builddir\n" if($verbose);
+
+  my $tot = $exp_success + $exp_failure;
+  print "=============== $srcfile (successes: $exp_success; total: $tot)\n";
+
+  $srcfile = basename($srcfile);
+
+  # first figure out some details
+  my @includes = &find_removable_includes($srcfile);
+
+  my $blanksrc = $srcfile;
+  $blanksrc =~ s/(.*)\.[^\.]+/$1/;
+
+  print "Checking for initial compilation: ";
+  chdir($builddir);
+  my $objextension = "BUG";
+  if($srcfile =~ /\.$hExt$/o) {
+    $output = `$makecmd all 2>&1`;
+    $objextension = "all" if ( 0 == ($? >> 8));
+  }
+  else {
+    unlink "$blanksrc.lo";
+    my $output = `$makecmd $blanksrc.lo 2>&1`;
+    $objextension = ".lo" if ( 0 == ($? >> 8));
+    if($objextension eq "BUG") {
+      print "failed with .lo... ";
+      unlink "$blanksrc.o";
+      $output = `$makecmd $blanksrc.o 2>&1`;
+      $objextension = ".o" if ( 0 == ($? >> 8));
+    }
+    if($srcfile =~ /$hExt/) {
+      $output = `$makecmd $blanksrc.o 2>&1`;
+      $objextension = ".o" if ( 0 == ($? >> 8));
+    }
+  }
+  if($objextension eq "BUG") {
+    warn "can't figure out right compile command for $srcfile :-(\n" .
+         "??? unused, or didn't compile in the first place?\n" .
+         "$output";
+    chdir($origdir);
+    exit 1;
+  }
+
+  print "worked with $objextension\n";
+
+  # now try to drop some includes 
+  foreach $include (@includes) {
+    # kdatastream is special because
+    # it will break the application if removed even
+    # if it continues to compile
+    next if( $include eq "kdatastream.h");
+    # I also like to have kdebug.h still in
+    # so that it's easy to add kdDebug calls
+    next if( $include eq "kdebug.h");
+    # avoid this one as it might cause
+    # certain code parts to be disabled from compilation
+    next if( $include eq "qmodules.h");
+    # don't remove this one either. causes conditional
+    # code to be compiled incorrectly
+    next if( $include eq "kdeversion.h");
+    # don't remove the config.h include
+    # conditional code may depend on this file
+    next if( $include eq "config.h");
+    # check if it is its own header file
+    my $blankhdr = $include;
+    $blankhdr =~ s/(.*)\.[^\.]+/$1/;
+    next if ($blankhdr eq $blanksrc);	
+
+    chdir($srcdir);
+
+    local $localbackup = $srcfile . "#fixkdeincludes";
+
+    # preserve timestamp if possible for CVS
+    unlink $localbackup;
+    rename $srcfile, $localbackup;
+    copy_file($localbackup, $srcfile);
+
+    # revert to backup in case of interrupt (Ctrl+C)
+    $SIG{'INT'} = \&sighandler_fix_unnecessary;
+
+    # check if it still compiles
+    if($verbose) {
+      chdir($builddir);
+      # testing headers? need to compile everything
+      if($objextension eq "all") {
+        # wait a second for makefile timestamp comparisons
+        sleep 1;
+        `$makecmd all 2>&1`;
+      }
+      else {
+        unlink "$blanksrc$objextension";
+        `$makecmd $blanksrc$objextension 2>&1`;
+      }
+      die "unexpected error $output\nexitcode=" . ($? >> 8) if($? >> 8);
+      chdir($srcdir);
+    }
+
+    # duplicates have to be nuked here , so it will be dropped maximum once
+    print "trying without $include: ";
+    &remove_include($srcfile, $include, 1);
+
+    chdir($builddir);
+
+    # try if it compiles
+    if($objextension eq "all") {
+      sleep 1;
+      $output=`$makecmd $objextension 2>&1`;
+    }
+    else {
+      unlink "$builddir/$blanksrc$objextension";
+      $output=`$makecmd $blanksrc$objextension 2>&1`;
+    }
+    my $retcode = ($? >> 8);
+    #print "retcode=$retcode\n$output" if ($verbose);
+
+    chdir($srcdir);
+    if($retcode == 0) {
+      # wow, it worked, lets continue!
+      print "SUCCESS!\n";
+      $SIG{'INT'} = 'DEFAULT';
+      unlink $localbackup;
+      $exp_success = $exp_success + 1;
+    }
+    else {
+      # is this a fixable error?
+      if($objextension eq "all" and 
+         &extract_gcc_error($output) ne $srcfile) {
+        print "failed (error in " . &extract_gcc_error($output) . ")\n";
+        # FIXME: implement fixup of the compilation error
+        # so that we can be much more agressive in removing
+        # unneeded includes from headers
+      }
+      else
+      {
+        # better luck next time
+        print "FATALLY failed\n";
+      }
+      unlink $srcfile;
+      rename $localbackup, $srcfile;
+      $SIG{'INT'} = 'DEFAULT';
+
+      $exp_failure = $exp_failure + 1;
+    }
+  }
+
+  print "\n";
+
+  chdir($origdir);
+}
+
+sub process_source_file($)
+{
+  local $file = shift @_;
+  my $pure = basename($file);
+  print "Checking: $file\n" if($verbose);
+  &fix_include_type($file);
+  &fix_compat_includes($file);
+  &fix_duplicates($file);
+  &fix_unnecessary($file) if ($experimental && !grep (/^$pure$/, @instheaders));
+  print "\n" if ($verbose);
+}
+
+sub check_for_automake_srcdir($)
+{
+  my $dir = shift;
+
+  return 0 if !( -r "$dir/Makefile.am");
+  return 1 if !( -r "$dir/Makefile");
+
+  # ok, now its either srcdir with srcdir==builddir, or its builddir,
+  # which we don't want. 
+
+  open(I, "<$dir/Makefile") || die "couldn't read $dir/Makefile";
+  while(<I>) {
+    if(/^srcdir\s*=\s*(\S+)/) {
+      close(I);
+
+      if($1 ne ".") {
+        print "Skipping build dir: $dir\n" if($verbose);
+        return 0;
+      }
+      return 1;
+    }
+  }
+  
+  close(I);
+  # ok, this makefile isn't generated by automake, we don't want that
+  return 0;
+}
+
+#############################################################################
+# here is the main logic
+#
+
+# warn about modified files
+if($modify) {
+  `cvscheck | grep '^[MmC]'`;
+  print "WARNING: you have pending local changes. You might commit them by accident!\n\n" if($? >> 8 == 0);
+}
+
+if($experimental) {
+  print "WARNING: The experimental mode is indeed experimental.\n";
+  print "It tries to reduce includes by testing if it would compile\n";
+  print "without a particular include. It might introduce subtle bugs\n";
+  print "or break compilation for make check or make final.\n\n";
+  print "This operation mode is known to be unsafe. You've been warned.\n";
+}
+
+# process files from the command line, if any
+if ( $#explicitfiles >= 0 ) {
+  foreach $file( @explicitfiles ) {
+    &process_source_file( $file );
+  }
+  exit 0;
+}
+
+# first generate a list of subdirectories
+@dirlist = ();
+push @dirlist, "." if (&check_for_automake_srcdir("."));
+die "current directory isn't srcdir!" if (!scalar @dirlist);
+foreach $dir ( @dirlist ) {
+ opendir (DIR, "$dir") || warn "Couldn't read '$dir'";
+ my $subdir = "";
+ while( $subdir = readdir(DIR)) {
+   next if ($subdir =~ /^\./);
+   next if !( -d "$dir/$subdir");
+   next if (! &check_for_automake_srcdir("$dir/$subdir"));
+
+   push @dirlist, "$dir/$subdir";
+ }
+ closedir(DIR);
+}
+
+# now iterate over all subdirs
+foreach $dir(@dirlist) {
+
+  # check if this directory wants not to be fixed
+  if(open(M, "$dir/Makefile.am")) {
+    my @mcontents = grep /(\-UQT_NO_COMPAT|\-UKDE_NO_COMPAT)/, <M>;
+    close(M);
+    if ( @mcontents ) {
+      print "Skipping directory: $dir\n";
+      next;
+    }
+  }
+
+  @headers = &find_fixable_headers($dir);
+  @instheaders = &find_installed_headers($dir);
+  foreach $file(@headers) {
+    &process_source_file($file);
+  }
+  @sources = &find_fixable_sources($dir);
+  foreach $file(@sources) {
+    &process_source_file($file);
+  }
+}