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Unless you build your own Python extensions in C, you can ignore this message.

Hi,

I'm about to install an new version of Python on the Solaris login servers. This is identical to the existing version, except it removes the definitions of _XOPEN_SOURCE and _POSIX_C_SOURCE from the pyconfig.h header. This has two implications for building Python modules in C:

* You can now build with C99 (-xc99=all) * The default compilation environment is Solaris, not XPGv5. * You can now select your own preferred version of XPG instead of being forced to use XPGv5.

To build with C99, compile with '-xc99=all'. To build with XPGv6 instead of XPGv5, use '-D_XOPEN_SOURCE=600 -xc99=all'. If your extension requires the old behaviour (XPGv5), build with '-D_XOPEN_SOURCE=500'.

- river.