/ 
parrot-0.9.1
/ README.cygwin

NAME

README.cygwin - Parrot under Cygwin

SYNOPSIS

Parrot builds out of the box under Cygwin, when no other parrot is installed. See below at PROBLEMS.

There are official cygwin parrot packages available via http://cygwin.com/setup.exe.

parrot libparrot0 libparrot-devel parrot-perl6 parrot-languages

Some tweaks are needed for different names for the ffi to some dll's. See "loadlib DLL versioning".

Packages

You'll need the following Cygwin packages to run and build Parrot by your own.

Runtime requirements:

libreadline6 ncurses libintl8 libgmp3 libgdbm4

Optional requirements:

libicu38 libpq5 openssl

for opengl: w32api opengl or libglut3 xorg-x11-base xorg-x11-bin-dlls

Build requirements:

gcc make perl parrot readline libncurses-devel libgmp-devel
libgdbm-devel pcre-devel

Optional build requirements:

libicu-devel openssl-devel

for Cygwin/X opengl: freeglut libglut-devel xorg-x11-devel

Optional perl packages for testing:

L<Test::TAP::HTMLMatrix> if you want to run the smoke tests
with C<make smoke>.

L<Test::Base> for some APL language tests.

perl L<Test::Perl::Critic> and L<Perl::Critic>
Cygwin subversion and perl

If you use SVN to get a copy of Parrot, you should use the Cygwin SVN and not the TortoiseSVN client to avoid build errors. Similarly you will need Cygwin Perl rather than ActiveState or Strawberry Perl.

icu

Note that ICU is now optional, you can build Parrot without it, by not installing it or asking Parrot to ignore it (--without-icu).

opengl

You can use the w32api and opengl packages for native Windows opengl support, or the freeglut package for the X Server.

Configure.pl will detect freeglut if freeglut is installed and DISPLAY is set, otherwise it checks for w32api and opengl with GLUT. In case that freeglut is installed, DISPLAY must be set before running Configure.pl. If not using freeglut, then DISPLAY must not be set. export DISPLAY=127.0.0.1:0.0 is the typical setting.

Determining if your platform supports OpenGL.............yes, freeglut 3.4.
Determining if your platform supports OpenGL...................yes, GLUT 3.
Determining if your platform supports OpenGL............................no.

Required packages:

w32api opengl

or

freeglut libglut-devel xorg-x11-devel xorg-x11-base xorg-x11-bin-dlls
SDL

SDL references cygSDL-1-2-0.dll, which is only in cygports http://news.gmane.org/gmane.os.cygwin.ports.announce

aio

libaio-devel "Linux-native asynchronous I/O access" is not available for cygwin, and as the name says it will never be :)

BUILD

perl Configure.pl
make
make test
make install

PROBLEMS

perl fatal error - unable to remap Glob.dll

Something like: perl.exe: *** fatal error - unable to remap C:\cygwin\lib\perl5\5.10\i686-cygwin\auto\File\Glob\Glob.dll to same address as parent(0x860000) != 0x14D0000

This is a known cygwin problem with dll's, esp. perl on non-XP 32bit platforms. You need to install the rebase package and run rebaseall from an ash shell.

Crash at miniparrot.exe config_lib.pasm

Invoking Parrot to generate runtime/parrot/include/config.fpmc --cross your fingers

F<./miniparrot.exe config_lib.pasm > runtime/parrot/include/config.fpmc>
crashes

See below.

Spurious stackdumps while building

Building with an already installed library fails. See RT#39742

Be sure that there's no other libparrot.dll.a or libparrot.a in the linker libpath.

/usr/lib/libparrot.dll.a, /usr/local/lib/libparrot.dll.a

t/pmc/os....................................
#   Failed test 'hard link was really created'
#   at t/pmc/os.t line 312.

This is a known Windows limitation with NTFS junctions on files.

TODO

loadlib DLL versioning

Use cyg*-1.1.dll naming conventions instead of lib*.so.1.1 names for loadlib, the FFI.

Thanks to the Windows DLL Hell and the impossibility of file hardlinks, windows dll names are versioned, so the loadlib function or the various pir's needs more logic.

Either add the version to each loadlib call, and stem the version from POSIX versions within get_path(), or add an optional version argument to loadlib for win32. Or just fix all the pir's, which will be easier when exceptions work again.

Features

Threads, Events, and Signals are missing.

AUTHORS

Reini Urban <rurban@x-ray.at>

SEE ALSO

L<parrot>

HISTORY

Last updated: 23 January 2009