Dear Fink developers,
I've just added the first fink package to provide 64bit libraries, to
the 10.4 tree only. The new package is called gmp-64bit, and it has
several new features which I'm going to suggest should become a
standard part of fink. I suggest that appending -64bit to the name
should become the standard way to specify a variant which builds
64bit libraries (and executables).
The gmp-64bit package depends on a new virtual package "64bit-cpu",
which became available with fink-0.24.24. For the moment, this means
that it will only build and run on G5 hardware, but since we are all
expecting 64bit intel Macs before too long, the same system should
work for 64bit libraries on either architecture.
The 64bit libraries are stored in /sw/lib64 rather than /sw/lib.
This necessitates several changes for any package wanting to use
them: on the one hand, one needs
NoSetLDFLAGS: true
SetLDFLAGS: -L%p/lib64
to use (other) 64bit libraries at compile-time. On the other hand,
one needs something like
ConfigureParams: --libdir='${prefix}/lib64'
to make sure that the libraries being built and installed will go
into the correct location. (This is for autoconf-based software --
other things may require other methods).
There will probably be other flags that have to be passed at compile-
time to get 64bit libraries instead of 32bit ones, but they are
likely to be package-specific at this point.
-- Dave
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