[Haskell-cafe] ANN: hmpfr-0.3.2 (requires integer-simple, supports mpfr 3.0.0)
mik at konecny.aow.cz
Thu Mar 3 17:40:12 CET 2011
I am pleased to announce hmpfr-0.3.2, a new version of Aleš Bizjak's bindings
to the MPFR arbitrary precision floating point arithmetic library. The
changes in this version are quite small but significant:
- support for MPFR 3.0.0 as well as MPFR 2.4.*
- dependency on integer-simple instead of integer-gmp
The latter is most significant because unfortunately it makes it rather more
difficult to install hmpfr. Currently almost all binary distributions of ghc
have integer-gmp compiled in to provide the Integer type via the standard GMP
library. Also haskell platform 2010.2.0.0 assumes that ghc has been compiled
with integer-gmp although it makes no specific use of it. Instructions on how
to compile ghc and haskell platform with integer-simple instead of integer-gmp
The rationale for this change is the fact that despite much effort hmpfr is
very unreliable on ghc that includes integer-gmp due to ghc deallocating GMP
data that was allocated by MPFR at unpredictable times.
Aleš and I hope that hmpfr can return to using integer-gmp once the proposal
to replace gmp with a modified gmp in ghc is implemented and made the default.
|o| Michal Konecny <mikkonecny at gmail.com>
|o| office: (+42) (0)121 204 3462
|o| PGP key http://www-users.aston.ac.uk/~konecnym/ki.aston
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