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Remove spinlock support for SINIX, Sun3, and NS32K.

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All of these platforms are very much obsolete.

As far as I can determine, the last version of SINIX, later renamed
Reliant, occurred some time between 2002 and 2005.

The last release of SunOS that would run on a sun3 was released in
November of 1991; the last release of OpenBSD which supported that
platform was in 2001.  The highest clock speed of any processor in
the family was 25MHz.

The NS32K (national semiconductor 320xx) architecture was retired
in 1990.

Support can be re-added if a maintainer emerges for any of these
platforms, but it seems unlikely.

Reviewed by Andres Freund.
This commit is contained in:
Robert Haas
2013-10-17 12:02:05 -04:00
parent bbe4deac1b
commit 81051a86bc
3 changed files with 1 additions and 83 deletions
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doc/src/sgml/installation.sgml
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@@ -1953,7 +1953,7 @@ kill `cat /usr/local/pgsql/data/postmaster.pid`
In general, <productname>PostgreSQL</> can be expected to work on
these CPU architectures: x86, x86_64, IA64, PowerPC,
PowerPC 64, S/390, S/390x, Sparc, Sparc 64, Alpha, ARM, MIPS, MIPSEL, M68K,
and PA-RISC. Code support exists for M32R, NS32K, and VAX, but these
and PA-RISC. Code support exists for M32R and VAX, but these
architectures are not known to have been tested recently. It is often
possible to build on an unsupported CPU type by configuring with
<option>--disable-spinlocks</option>, but performance will be poor.