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Update the documentation about the PPC Linux port.

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README.Linux-PPC:
	Update the documentation about the PPC Linux port.
	Global register variables do work with gcc-2.8.0.
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Tyson Dowd
1998-01-30 05:31:44 +00:00
parent 5a9e831258
commit 244d90c20c
1 changed files with 5 additions and 6 deletions
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README.Linux-PPC
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@@ -1,12 +1,11 @@
Mercury should build "out-of-the-box" on Linux for PPC.
Thanks to Robert A. Abernathy for his help with this port.
However, gcc 2.7.2 does not yet support global register variables
on this configuration, which means that the code generated by the
Mercury compiler is much less efficient. Perhaps a future release
of gcc (2.8?) will incorporate this support. But for the moment,
we recommend that you use egcs (see <http://www.cygnus.com/egcs/>),
which does have support for global register variables.
You will need to use a recent release of gcc which supports global
register variables for this configuration - gcc 2.8.0 seems to
work fine, whereas gcc 2.7.2 doesn't. Global register variables
allow considerably more efficient code to be generated. Another option
is egcs (see <http://www.cygnus.com/egcs/>).
In addition, there are a few things that could be done to "tune" this
port. Currently the Linux-PPC port does not yet support shared