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Python for AtheOS
Before building:
Make sure you have shared versions of the libraries you want to use
with Python. You will have to compile them yourself, or download
precompiled packages.
Recommended libraries:
ncurses-4.2
readline-4.2a
zlib-1.1.4
Build:
$ ./configure --prefix=/usr/python
$ make
Python is always built as a shared library, otherwise dynamic loading
would not work.
Testing:
$ make test
Install:
# make install
# pkgmanager -a /usr/python
AtheOS issues:
- large file support: due to a stdio bug in glibc/libio, access to
large files may not work correctly.
fseeko() tries to seek to a negative offset.
ftello() returns a negative offset, it looks like a 32->64bit
sign-extension issue.
The lowlevel functions (open, lseek, etc) are OK.
- sockets: AF_UNIX is defined in the C library and in Python, but
not implemented in the system.
- select: poll is available in the C library, but does not work
(It does not return POLLNVAL for bad fds and hangs).
- posix: statvfs and fstatvfs always return ENOSYS.
-
- disabled modules:
- mmap: not yet implemented in AtheOS
- nis: broken (on an unconfigured system yp_get_default_domain()
returns junk instead of error)
- dl: dynamic loading doesn't work via dlopen()
- resource: getrimit and setrlimit are not yet implemented
- if you are getting segmentation faults, you probably are low on memory.
AtheOS doesn't handle very well an out-of-memory condition and
simply SEGVs the process.
Tested on:
AtheOS-0.3.7
gcc-2.95
binutils-2.10
make-3.78
--
Octavian Cerna <tavy@ylabs.com>
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