# https://fedoraproject.org/wiki/Packaging:Haskell

%global pkg_name tf-random

Name:           ghc-%{pkg_name}

Version:        0.5

Release:        4%{?dist}

Summary:        High-quality splittable pseudorandom number generator

# main license is BSD

# brg_types.h is BSD and optionally GPL+

# C code by Doug Whiting is Public Domain

License:        BSD and Public Domain

Url:            https://hackage.haskell.org/package/%{pkg_name}

Source0:        https://hackage.haskell.org/package/%{pkg_name}-%{version}/%{pkg_name}-%{version}.tar.gz

BuildRequires:  ghc-Cabal-devel

BuildRequires:  ghc-rpm-macros

# Begin cabal-rpm deps:

BuildRequires:  ghc-primitive-devel

BuildRequires:  ghc-random-devel

BuildRequires:  ghc-time-devel

# End cabal-rpm deps

%description

This package contains an implementation of a high-quality splittable

pseudorandom number generator. The generator is based on a cryptographic hash

function built on top of the ThreeFish block cipher. See the paper /Splittable

Pseudorandom Number Generators Using Cryptographic Hashing/ by Claessen, Pałka

for details and the rationale of the design.

The package provides the following:

* A splittable PRNG that implements the standard 'System.Random.RandomGen'

class.

* The generator also implements an alternative version of the

'System.Random.TF.Gen.RandomGen' class (exported from "System.Random.TF.Gen"),

which requires the generator to return pseudorandom integers from the full

32-bit range, and contains an n-way split function.

* An alternative version of the 'Random' class is provided, which is linked to

the new 'RandomGen' class, together with 'Random' instances for some integral

types.

* Two functions for initialising the generator with a non-deterministic seed:

one using the system time, and one using the '/dev/urandom' UNIX special file.

The package uses an adapted version of the reference C implementation of

ThreeFish from the reference package of the Skein hash function

(<https://www.schneier.com/skein.html>), originally written by Doug Whiting.

Please note that even though the generator provides very high-quality

pseudorandom numbers, it has not been designed with cryptographic applications

in mind.

%package devel

Summary:        Haskell %{pkg_name} library development files

Provides:       %{name}-static = %{version}-%{release}

Requires:       ghc-compiler = %{ghc_version}

Requires(post): ghc-compiler = %{ghc_version}

Requires(postun): ghc-compiler = %{ghc_version}

Requires:       %{name}%{?_isa} = %{version}-%{release}

%description devel

This package provides the Haskell %{pkg_name} library development files.

%prep

%setup -q -n %{pkg_name}-%{version}

%build

# for haddock

export LANG=en_US.utf8

%ghc_lib_build

%install

%ghc_lib_install

rm %{buildroot}/%{ghc_pkgdocdir}/LICENSE

%post devel

%ghc_pkg_recache

%postun devel

%ghc_pkg_recache

%files -f %{name}.files

%license LICENSE LICENSE.tf LICENSE.brg

%files devel -f %{name}-devel.files

%doc ChangeLog

%changelog

* Wed Feb 03 2016 Fedora Release Engineering <releng@fedoraproject.org> - 0.5-4

- Rebuilt for https://fedoraproject.org/wiki/Fedora_24_Mass_Rebuild

* Wed Jun 17 2015 Fedora Release Engineering <rel-eng@lists.fedoraproject.org> - 0.5-3

- Rebuilt for https://fedoraproject.org/wiki/Fedora_23_Mass_Rebuild

* Tue Mar  3 2015 Jens Petersen <petersen@redhat.com> - 0.5-2

- some of the C code is Public Domain (#1196960)

* Fri Feb 27 2015 Jens Petersen <petersen@redhat.com> - 0.5-1

- improve filelists

* Mon Feb  9 2015 Fedora Haskell SIG <haskell@lists.fedoraproject.org> - 0.5

- spec file generated by cabal-rpm-0.9.3