--- /dev/null
+ GNU GENERAL PUBLIC LICENSE
+ Version 2, June 1991
+
+ Copyright (C) 1989, 1991 Free Software Foundation, Inc.
+ 675 Mass Ave, Cambridge, MA 02139, USA
+ Everyone is permitted to copy and distribute verbatim copies
+ of this license document, but changing it is not allowed.
+
+ Preamble
+
+ The licenses for most software are designed to take away your
+freedom to share and change it. By contrast, the GNU General Public
+License is intended to guarantee your freedom to share and change free
+software--to make sure the software is free for all its users. This
+General Public License applies to most of the Free Software
+Foundation's software and to any other program whose authors commit to
+using it. (Some other Free Software Foundation software is covered by
+the GNU Library General Public License instead.) You can apply it to
+your programs, too.
+
+ When we speak of free software, we are referring to freedom, not
+price. Our General Public Licenses are designed to make sure that you
+have the freedom to distribute copies of free software (and charge for
+this service if you wish), that you receive source code or can get it
+if you want it, that you can change the software or use pieces of it
+in new free programs; and that you know you can do these things.
+
+ To protect your rights, we need to make restrictions that forbid
+anyone to deny you these rights or to ask you to surrender the rights.
+These restrictions translate to certain responsibilities for you if you
+distribute copies of the software, or if you modify it.
+
+ For example, if you distribute copies of such a program, whether
+gratis or for a fee, you must give the recipients all the rights that
+you have. You must make sure that they, too, receive or can get the
+source code. And you must show them these terms so they know their
+rights.
+
+ We protect your rights with two steps: (1) copyright the software, and
+(2) offer you this license which gives you legal permission to copy,
+distribute and/or modify the software.
+
+ Also, for each author's protection and ours, we want to make certain
+that everyone understands that there is no warranty for this free
+software. If the software is modified by someone else and passed on, we
+want its recipients to know that what they have is not the original, so
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+
+ Finally, any free program is threatened constantly by software
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+program proprietary. To prevent this, we have made it clear that any
+patent must be licensed for everyone's free use or not licensed at all.
+
+ The precise terms and conditions for copying, distribution and
+modification follow.
+\f
+ GNU GENERAL PUBLIC LICENSE
+ TERMS AND CONDITIONS FOR COPYING, DISTRIBUTION AND MODIFICATION
+
+ 0. This License applies to any program or other work which contains
+a notice placed by the copyright holder saying it may be distributed
+under the terms of this General Public License. The "Program", below,
+refers to any such program or work, and a "work based on the Program"
+means either the Program or any derivative work under copyright law:
+that is to say, a work containing the Program or a portion of it,
+either verbatim or with modifications and/or translated into another
+language. (Hereinafter, translation is included without limitation in
+the term "modification".) Each licensee is addressed as "you".
+
+Activities other than copying, distribution and modification are not
+covered by this License; they are outside its scope. The act of
+running the Program is not restricted, and the output from the Program
+is covered only if its contents constitute a work based on the
+Program (independent of having been made by running the Program).
+Whether that is true depends on what the Program does.
+
+ 1. You may copy and distribute verbatim copies of the Program's
+source code as you receive it, in any medium, provided that you
+conspicuously and appropriately publish on each copy an appropriate
+copyright notice and disclaimer of warranty; keep intact all the
+notices that refer to this License and to the absence of any warranty;
+and give any other recipients of the Program a copy of this License
+along with the Program.
+
+You may charge a fee for the physical act of transferring a copy, and
+you may at your option offer warranty protection in exchange for a fee.
+
+ 2. You may modify your copy or copies of the Program or any portion
+of it, thus forming a work based on the Program, and copy and
+distribute such modifications or work under the terms of Section 1
+above, provided that you also meet all of these conditions:
+
+ a) You must cause the modified files to carry prominent notices
+ stating that you changed the files and the date of any change.
+
+ b) You must cause any work that you distribute or publish, that in
+ whole or in part contains or is derived from the Program or any
+ part thereof, to be licensed as a whole at no charge to all third
+ parties under the terms of this License.
+
+ c) If the modified program normally reads commands interactively
+ when run, you must cause it, when started running for such
+ interactive use in the most ordinary way, to print or display an
+ announcement including an appropriate copyright notice and a
+ notice that there is no warranty (or else, saying that you provide
+ a warranty) and that users may redistribute the program under
+ these conditions, and telling the user how to view a copy of this
+ License. (Exception: if the Program itself is interactive but
+ does not normally print such an announcement, your work based on
+ the Program is not required to print an announcement.)
+\f
+These requirements apply to the modified work as a whole. If
+identifiable sections of that work are not derived from the Program,
+and can be reasonably considered independent and separate works in
+themselves, then this License, and its terms, do not apply to those
+sections when you distribute them as separate works. But when you
+distribute the same sections as part of a whole which is a work based
+on the Program, the distribution of the whole must be on the terms of
+this License, whose permissions for other licensees extend to the
+entire whole, and thus to each and every part regardless of who wrote it.
+
+Thus, it is not the intent of this section to claim rights or contest
+your rights to work written entirely by you; rather, the intent is to
+exercise the right to control the distribution of derivative or
+collective works based on the Program.
+
+In addition, mere aggregation of another work not based on the Program
+with the Program (or with a work based on the Program) on a volume of
+a storage or distribution medium does not bring the other work under
+the scope of this License.
+
+ 3. You may copy and distribute the Program (or a work based on it,
+under Section 2) in object code or executable form under the terms of
+Sections 1 and 2 above provided that you also do one of the following:
+
+ a) Accompany it with the complete corresponding machine-readable
+ source code, which must be distributed under the terms of Sections
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+
+ b) Accompany it with a written offer, valid for at least three
+ years, to give any third party, for a charge no more than your
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+
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+
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+
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+compelled to copy the source along with the object code.
+\f
+ 4. You may not copy, modify, sublicense, or distribute the Program
+except as expressly provided under this License. Any attempt
+otherwise to copy, modify, sublicense or distribute the Program is
+void, and will automatically terminate your rights under this License.
+However, parties who have received copies, or rights, from you under
+this License will not have their licenses terminated so long as such
+parties remain in full compliance.
+
+ 5. You are not required to accept this License, since you have not
+signed it. However, nothing else grants you permission to modify or
+distribute the Program or its derivative works. These actions are
+prohibited by law if you do not accept this License. Therefore, by
+modifying or distributing the Program (or any work based on the
+Program), you indicate your acceptance of this License to do so, and
+all its terms and conditions for copying, distributing or modifying
+the Program or works based on it.
+
+ 6. Each time you redistribute the Program (or any work based on the
+Program), the recipient automatically receives a license from the
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+these terms and conditions. You may not impose any further
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+You are not responsible for enforcing compliance by third parties to
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+
+ 7. If, as a consequence of a court judgment or allegation of patent
+infringement or for any other reason (not limited to patent issues),
+conditions are imposed on you (whether by court order, agreement or
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+may not distribute the Program at all. For example, if a patent
+license would not permit royalty-free redistribution of the Program by
+all those who receive copies directly or indirectly through you, then
+the only way you could satisfy both it and this License would be to
+refrain entirely from distribution of the Program.
+
+If any portion of this section is held invalid or unenforceable under
+any particular circumstance, the balance of the section is intended to
+apply and the section as a whole is intended to apply in other
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+
+It is not the purpose of this section to induce you to infringe any
+patents or other property right claims or to contest validity of any
+such claims; this section has the sole purpose of protecting the
+integrity of the free software distribution system, which is
+implemented by public license practices. Many people have made
+generous contributions to the wide range of software distributed
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+to distribute software through any other system and a licensee cannot
+impose that choice.
+
+This section is intended to make thoroughly clear what is believed to
+be a consequence of the rest of this License.
+\f
+ 8. If the distribution and/or use of the Program is restricted in
+certain countries either by patents or by copyrighted interfaces, the
+original copyright holder who places the Program under this License
+may add an explicit geographical distribution limitation excluding
+those countries, so that distribution is permitted only in or among
+countries not thus excluded. In such case, this License incorporates
+the limitation as if written in the body of this License.
+
+ 9. The Free Software Foundation may publish revised and/or new versions
+of the General Public License from time to time. Such new versions will
+be similar in spirit to the present version, but may differ in detail to
+address new problems or concerns.
+
+Each version is given a distinguishing version number. If the Program
+specifies a version number of this License which applies to it and "any
+later version", you have the option of following the terms and conditions
+either of that version or of any later version published by the Free
+Software Foundation. If the Program does not specify a version number of
+this License, you may choose any version ever published by the Free Software
+Foundation.
+
+ 10. If you wish to incorporate parts of the Program into other free
+programs whose distribution conditions are different, write to the author
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+Software Foundation, write to the Free Software Foundation; we sometimes
+make exceptions for this. Our decision will be guided by the two goals
+of preserving the free status of all derivatives of our free software and
+of promoting the sharing and reuse of software generally.
+
+ NO WARRANTY
+
+ 11. BECAUSE THE PROGRAM IS LICENSED FREE OF CHARGE, THERE IS NO WARRANTY
+FOR THE PROGRAM, TO THE EXTENT PERMITTED BY APPLICABLE LAW. EXCEPT WHEN
+OTHERWISE STATED IN WRITING THE COPYRIGHT HOLDERS AND/OR OTHER PARTIES
+PROVIDE THE PROGRAM "AS IS" WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESSED
+OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
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+TO THE QUALITY AND PERFORMANCE OF THE PROGRAM IS WITH YOU. SHOULD THE
+PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF ALL NECESSARY SERVICING,
+REPAIR OR CORRECTION.
+
+ 12. IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING
+WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MAY MODIFY AND/OR
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+PROGRAMS), EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE
+POSSIBILITY OF SUCH DAMAGES.
+
+ END OF TERMS AND CONDITIONS
+\f
+ How to Apply These Terms to Your New Programs
+
+ If you develop a new program, and you want it to be of the greatest
+possible use to the public, the best way to achieve this is to make it
+free software which everyone can redistribute and change under these terms.
+
+ To do so, attach the following notices to the program. It is safest
+to attach them to the start of each source file to most effectively
+convey the exclusion of warranty; and each file should have at least
+the "copyright" line and a pointer to where the full notice is found.
+
+ <one line to give the program's name and a brief idea of what it does.>
+ Copyright (C) 19yy <name of author>
+
+ This program is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 2 of the License, or
+ (at your option) any later version.
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with this program; if not, write to the Free Software
+ Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+
+Also add information on how to contact you by electronic and paper mail.
+
+If the program is interactive, make it output a short notice like this
+when it starts in an interactive mode:
+
+ Gnomovision version 69, Copyright (C) 19yy name of author
+ Gnomovision comes with ABSOLUTELY NO WARRANTY; for details type `show w'.
+ This is free software, and you are welcome to redistribute it
+ under certain conditions; type `show c' for details.
+
+The hypothetical commands `show w' and `show c' should show the appropriate
+parts of the General Public License. Of course, the commands you use may
+be called something other than `show w' and `show c'; they could even be
+mouse-clicks or menu items--whatever suits your program.
+
+You should also get your employer (if you work as a programmer) or your
+school, if any, to sign a "copyright disclaimer" for the program, if
+necessary. Here is a sample; alter the names:
+
+ Yoyodyne, Inc., hereby disclaims all copyright interest in the program
+ `Gnomovision' (which makes passes at compilers) written by James Hacker.
+
+ <signature of Ty Coon>, 1 April 1989
+ Ty Coon, President of Vice
+
+This General Public License does not permit incorporating your program into
+proprietary programs. If your program is a subroutine library, you may
+consider it more useful to permit linking proprietary applications with the
+library. If this is what you want to do, use the GNU Library General
+Public License instead of this License.
--- /dev/null
+#!/usr/bin/perl -w
+#
+# CrossReport - analysis tool.
+# Copyright (C) 2009 Red Hat Inc.
+# Written by Richard W.M. Jones <rjones@redhat.com>,
+# http://fedoraproject.org/wiki/MinGW
+#
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 2 of the License, or (at
+# your option) any later version.
+#
+# This program is distributed in the hope that it will be useful, but
+# WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+# General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software
+# Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+
+use strict;
+
+use Getopt::Long;
+use Pod::Usage;
+use GDBM_File;
+use POSIX qw(strftime floor);
+
+=pod
+
+=head1 NAME
+
+CrossReport - Analysis tool to help cross-compilation to Windows.
+
+=head1 SYNOPSIS
+
+ mingw32-crossreport [options] /path/to/linuxbinary
+
+=head1 DESCRIPTION
+
+CrossReport is a tool to help you analyze the APIs used by a compiled
+Linux program, in order to work out the effort required to
+cross-compile that program for Windows, using the Fedora MinGW
+cross-compiler.
+
+The simplest way to use it is to point it at an existing Linux binary,
+and then read the generated report.
+
+What it does in more detail: It looks at the libraries and API calls
+used by the Linux binary, and compares them to the libraries and API
+calls that we currently support under the Fedora MinGW cross-compiler.
+It then works out what is missing, and produces a report suggesting
+the amount of work that needs to be done to port the program. For
+example, whether whole libraries need to be ported first, and/or how
+to substitute individual calls to work on Windows.
+
+=head1 EXAMPLE
+
+Assuming that the excellent vector graphics editor Inkscape
+(L<http://www.inkscape.org/>) is installed, you could do:
+
+ mingw32-crossreport /usr/bin/inkscape > inkscape-report.txt
+ less inkscape-report.txt
+
+=head1 SHORTCOMINGS
+
+The report is only a general guide. CrossReport contains a lot of
+knowledge about common Linux calls and APIs, but does not know about
+every possible library.
+
+=head1 DATABASE
+
+The program relies on a database of MinGW APIs. The default location
+for this database is C</usr/share/crossreport/crossreport.db> or the
+same file in the current working directory. If the database cannot be
+found in either location, the program will fail with an error message.
+
+The database is updated regularly and distributed with CrossReport.
+To get the best quality report, make sure you are running a recent
+version of the program.
+
+=cut
+
+my $help = '';
+my $man = '';
+my $verbose = '';
+my $binary = '';
+
+sub get_options
+{
+ my $result = GetOptions (
+ "help|?" => \$help,
+ "man" => \$man,
+ "verbose" => \$verbose,
+ );
+ die "crossreport: use --help for information about command line options\n"
+ unless $result;
+
+ pod2usage(1) if $help;
+ pod2usage(-exitstatus => 0, -verbose => 2) if $man;
+
+ die "crossreport: no binary specified: use --help for more help\n"
+ if @ARGV != 1;
+
+ $binary = $ARGV[0];
+}
+
+my %symbols;
+
+sub get_db
+{
+ foreach ("/usr/local/share/crossreport/crossreport.db",
+ "/usr/share/crossreport/crossreport.db",
+ "crossreport.db") {
+ if (-f $_) {
+ tie %symbols, "GDBM_File", $_, &GDBM_READER, 0;
+ return;
+ }
+ }
+ die "Could not find crossreport.db\n"
+}
+
+# Get the symbols (API calls) used by the binary.
+
+my %api = (); # Count how each API is used.
+my @unresolved = (); # List of unresolved symbols.
+
+sub get_symbols
+{
+ my $cmd = "nm -D $binary | grep ' U ' | awk '{print \$2}' | c++filt";
+ open CMD, "$cmd |" or die "$cmd: $!";
+ foreach (<CMD>) {
+ chomp;
+ if (exists $symbols{$_}) {
+ my $rpm_name = $symbols{$_};
+ $api{$rpm_name} = 0 unless exists $api{$rpm_name};
+ $api{$rpm_name}++;
+ } else {
+ push @unresolved, $_;
+ }
+ }
+ close CMD;
+}
+
+#----------------------------------------------------------------------
+# Reporting section.
+
+# This hash contains our area expertise about some unresolved symbols.
+
+my $suggest_portability_library =
+ "To get more reliable semantics, we suggest you use a portability\n".
+ "library such as Gnulib, glib2, QtCore, etc.\n";
+my $warning_about_read_write_on_sockets =
+ "If you are using read/write on sockets, then this won't work on\n".
+ "Windows. You should use recv/send instead.\n";
+
+my %report = (
+ "open" =>
+ "Program uses POSIX open/close/read/write/... APIs. You should be\n".
+ "aware that Win32 provides functions with the same name which do not\n".
+ "have POSIX semantics. Simple file operations will be fine, but you\n".
+ "will not be able to, for example, open /dev/* or other special files,\n".
+ "and select, locking and other POSIX features will not work the same\n".
+ "way.\n".
+ "\n".
+ "$suggest_portability_library".
+ "\n".
+ "$warning_about_read_write_on_sockets",
+ "close" => '@open',
+ "read" => '@open',
+ "write" => '@open',
+
+ "socket" =>
+ "Program uses Berkeley sockets API. Windows has a reasonable facsimile\n".
+ "called Winsock. However it has some annoying API differences, in\n".
+ "particular: (1) You have to use WSAGetLastError instead of errno,\n".
+ "(2) error numbers have different names, (3) you cannot select on,\n".
+ "sockets, (4) a multitude of small API differences, (5) you have to\n".
+ "initialize Winsock before using it by calling WSAStartup.\n".
+ "\n".
+ "$suggest_portability_library".
+ "\n".
+ "$warning_about_read_write_on_sockets",
+ "socketpair" => '@socket',
+ "accept" => '@socket',
+ "bind" => '@socket',
+ "connect" => '@socket',
+ "listen" => '@socket',
+ "getsockopt" => '@socket',
+ "setsockopt" => '@socket',
+ "shutdown" => '@socket',
+
+ "ioctl" =>
+ "Program uses fcntl or ioctl system calls. Only a tiny fraction of\n".
+ "the functionality of these system calls is available in Windows,\n".
+ "often with differences in semantics.\n".
+ "\n".
+ "$suggest_portability_library",
+ "fcntl" => '@ioctl',
+
+ "select" =>
+ "The select/poll/etc system calls are not available on Windows. You\n".
+ "have to use WSAWaitForMultipleEvents instead.\n".
+ "\n".
+ "$suggest_portability_library",
+ "poll" => '@select',
+ "epoll_create" => '@select',
+ "epoll_ctl" => '@select',
+ "epoll_wait" => '@select',
+
+ "fork" =>
+ "You cannot use fork to create new processes under Windows. You have\n".
+ "to replace calls to fork/exec with CreateProcess or CreateThread.\n".
+ "\n".
+ "If your program forks in order to run in parallel or to create\n".
+ "multiple identical workers, then you may have to restructure the\n".
+ "program.\n".
+ "\n".
+ "If your program needs to share resources such as file descriptors\n".
+ "across the fork, then some limited options are available through\n".
+ "CreateProcess, but nothing like as rich as what is available in\n".
+ "Unix.\n".
+ "\n".
+ "For server programs, we suggest using a portability library tuned\n".
+ "for the needs of servers, such as Apache Portable Runtime.\n",
+ "execl" => '@fork',
+ "execlp" => '@fork',
+ "execle" => '@fork',
+ "execv" => '@fork',
+ "execvp" => '@fork',
+ "execve" => '@fork',
+
+ "usleep" =>
+ "usleep/nanosleep system calls do not exist on Windows. You should\n".
+ "replace this with one of the Win32 equivalents such as Sleep.\n".
+ "\n".
+ "$suggest_portability_library",
+ "nanosleep" => '@usleep',
+
+ "dup" =>
+ "dup/dup2 may not work as expected in Win32.\n".
+ "\n".
+ "$suggest_portability_library",
+ "dup2" => '@dup2',
+
+ "getopt_long" =>
+ "GNU getopt_long is not available in Windows.\n".
+ "\n".
+ "$suggest_portability_library",
+
+ "__stack_chk_fail" =>
+ "The -fstack-protector option may not work with the Fedora MinGW\n".
+ "cross-compiler at this time.\n",
+);
+
+# List of symbols for which there is no known problem.
+
+my %no_report = (
+ __libc_start_main => 1,
+ _exit => 1,
+ fputc => 1,
+ free => 1,
+ fwrite => 1,
+ malloc => 1,
+ strcasecmp => 1,
+ strchr => 1,
+ strcmp => 1,
+ strtol => 1,
+);
+
+sub report_start
+{
+ my $time = time ();
+ my $date = strftime "%a %b %e %H:%M:%S %Y", localtime ($time);
+ my $sym_time = $symbols{__crossreport_time};
+ my $sym_date = strftime "%a %b %e %H:%M:%S %Y", localtime ($sym_time);
+ my $days = floor (($time - $sym_time) / 86400);
+
+ print <<EOT;
+Cross-compilation report for: $binary
+
+Report prepared on $date.
+Symbol database last updated on $sym_date ($days days ago).
+
+EOT
+}
+
+# Report resolved libraries.
+
+sub report_resolved
+{
+ print <<EOT;
+This table shows the supported APIs that this program uses,
+including the number of different calls made to each API.
+In most cases, you just need to arrange it so that your program
+'BuildRequires' these RPMs and links to the libraries within them.
+
+ #calls RPM name
+EOT
+
+ foreach (sort (keys %api)) {
+ printf " %10d %s\n", $api{$_}, $_;
+ }
+
+ print "\n";
+}
+
+# Report unresolved symbols.
+
+sub report_unresolved
+{
+ @unresolved = sort @unresolved;
+
+ if (0 == @unresolved) {
+ print <<EOT;
+No unresolved symbols were found. Programs which have no
+unresolved symbols at all are the easiest to port because
+portability libraries (eg. glib, Qt) have already done all
+the hard work for you.
+EOT
+ } else {
+ my $nr_unresolved = @unresolved;
+ print <<EOT;
+$nr_unresolved unresolved symbols were found. The full list of symbols
+is listed as an appendix at the end of this report. In this
+section we try to identify known portability problems from
+this list of symbols.
+
+EOT
+
+ foreach (@unresolved) {
+ if (!exists $no_report{$_}) {
+ if (exists $report{$_}) {
+ my $r = $report{$_};
+ $r = $report{$1} while $r =~ /@(.*)/;
+ print "Program uses: $_\n\n$r\n";
+ }
+ }
+ }
+
+
+ print <<EOT;
+Appendix - Full list of unresolved symbols
+
+* = Symbol we were not able to give advice about. If you know
+more about this symbol, consider providing a patch for the
+CrossReport program.
+
+✓ = Win32 should supply this symbol, or it can be ignored because
+it is a side-effect of the Unix toolchain.
+
+EOT
+
+ foreach (@unresolved) {
+ my $star =
+ exists $no_report{$_} ? "✓" :
+ (exists $report{$_} ? " " : "*");
+ print "\t$star $_\n"
+ }
+ }
+}
+
+# Main program.
+
+sub main
+{
+ get_options ();
+ get_db ();
+ get_symbols ();
+ report_start ();
+ report_resolved ();
+ report_unresolved ();
+}
+
+main ();
+
+=pod
+
+=head1 COPYRIGHT
+
+Copyright (C) 2009 Red Hat Inc.
+Written by Richard W.M. Jones <rjones@redhat.com>.
+
+This program is free software; you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation; either version 2 of the License, or (at
+your option) any later version.
+
+This program is distributed in the hope that it will be useful, but
+WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with this program; if not, write to the Free Software
+Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+
+=cut