----------------------------------------------------------------
-- wren ng thornton <wren@community.haskell.org>    ~ 2013.05.11
----------------------------------------------------------------

-- By and large Cabal >=1.2 is fine; but >= 1.6 gives tested-with:
-- and source-repository:.
Cabal-Version:  >= 1.6
Build-Type:     Simple

Name:           logfloat
Version:        0.12.1.6
Stability:      experimental
Homepage:       http://code.haskell.org/~wren/
Author:         wren ng thornton
Maintainer:     wren@community.haskell.org
Copyright:      Copyright (c) 2007--2013 wren ng thornton
License:        BSD3
License-File:   LICENSE

Category:       Data, Math, Natural Language Processing, Statistics
Synopsis:       Log-domain floating point numbers
Description:    This module presents a type for storing numbers
                in the log-domain. The main reason for doing this
                is to prevent underflow when multiplying many
                probabilities as is done in Hidden Markov Models.
                It is also helpful for preventing overflow.

Tested-With:
    GHC == 6.12.1, GHC == 7.6.1
Extra-source-files:
    INSTALL, VERSION
Source-Repository head
    Type:     darcs
    Location: http://community.haskell.org/~wren/logfloat

----------------------------------------------------------------
Flag base4
    Default:     True
    Description: base-4.0 emits "Prelude deprecated" messages in
                 order to get people to be explicit about which
                 version of base they use.

Flag splitBase
    Default:     True
    Description: base-3.0 (GHC 6.8) broke out the packages: array,
                 bytestring, containers, directory, old-locale,
                 old-time, packedstring, pretty, process, random.

Flag useFFI
    Default:     True
    Description: Use FFI to link C's log1p. Improves accuracy and
                 same performance. Disable only if your compiler
                 doesn't support FFI.

----------------------------------------------------------------
Library
    Hs-Source-Dirs:  src
    Exposed-Modules: Data.Number.LogFloat
                   , Data.Number.RealToFrac
                   , Data.Number.Transfinite
                   , Data.Number.PartialOrd
                   , Hugs.RealFloat
    -- I think this is all that needs doing to get rid of the warnings?
    if flag(base4)
        Build-Depends: base >= 4 && < 5
    else
        Build-Depends: base < 4
    
    if flag(splitBase)
        Build-depends: base >= 3.0, array
    else
        Build-depends: base < 3.0
    
    if flag(useFFI)
        -- BUG (Cabal 1.2 + Haddock): See the INSTALL file.
        --GHC-Options: -D__USE_FFI__
        CPP-Options: -D__USE_FFI__
        includes: math.h
        extra-libraries: m
    
    -- BUG (GHC 6.10.1): Can't mix FFI and -fvia-C
    -- <http://hackage.haskell.org/trac/ghc/ticket/3117>
    -- This is a momentary hack to keep it for 6.8
    -- TODO: see if -fasm suffices for the benefits
    if impl(ghc < 6.10)
        GHC-Options: -fvia-C -optc-O3
    
    -- BUG (Cabal <= 1.6 + Hugs): See the INSTALL file.
    Hugs-Options: -98 +o
    if impl(hugs)
        -- BUG: (Cabal 1.2 + Haddock) See the INSTALL file.
        --GHC-Options: -D__HUGS__=200609
        CPP-Options: -D__HUGS__=200609

----------------------------------------------------------------
----------------------------------------------------------- fin.