[amd64] math functions + GMP

Hi all,

having written the math functions, I started testing them. For one thing
there was a dangling mistake on my part, that's why I re-release the stuff
now. Hopefully it works now.

Instructions on how to integrate them:

- load http://www.hs-merseburg.de/~8mwichma/amd64-math.tar.xz
- unpack it in the dietlibc root directory
- go to x86_64 subdirectory
- append Makefile.add.add to Makefile.add

Or, as a script

cvs -d :pserver:[email protected]:/cvs -z9 co dietlibc
cd dietlibc
fget 'http://www.hs-merseburg.de/~8mwichma/amd64-math.tar.xz' \
    | xz -dc | tar x
cd x86_64
cat Makefile.add.add >> Makefile.add

Now that that's done, on to the next topic: GMP.

Used version: 5.0.1
Used configure command line: CC="diet-dyn gcc" ./configure --prefix=/tools

I got it compiled against dietlibc, but the test suite fails. Don't know,
if it is serious. In a test compile against glibc, the test suite doesn't
fail, though. Does anyone know, if any of the following tests is critical?
(all below the tests/ subdir)

mpz/convert
mpz/io
mpz/t-inp_str
mpq/t-get_str
mpq/t-inp_str
mpf/t-conv
mpf/t-inp_str
misc/t-printf
misc/t-scanf

I uploaded the check log to
http://www.hs-merseburg.de/~8mwichma/gmp-check-fails (Only containing
directory change messages and failure notifications with error messages. I
don't think you need to know each of the many tests that were successful.
Consider every tests not mentioned there successful).

I tracked one of the error messages to tests/memory.c, but I didn't
understand the code there. Any suggestions?

CU,
Markus
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