%global pkg_name neither
%global common_summary Either with monad and applicative instances
%global common_description The standard Either datatype suffers from a lack of monad and \
applicative instances. To make matters worse, the mtl and \
transformers packages provide orphan instances which conflict \
with each other, as well as defining a transformer version \
which has an usually unnecessary superclass constraint. \
\
Besides these annoyances, there is another issue: there exist \
two reasonable definitions of the Applicative instance for \
Either: one the holds onto only the first Left value, or one \
that appends all Left values together via a Monoid instance. \
The former is compatible with the monad instance, while the \
latter is not. \
\
This package defines three datatypes, some helpers functions \
and instances. The data types are AEither, MEither and \
MEitherT. AEither provides an Applicative instance which \
appends Left values, MEither provides the monadic definition, \
and MEitherT is a monad transformer.
%global ghc_pkg_deps ghc-failure-devel, ghc-transformers-devel
%bcond_without shared
%bcond_without hscolour
# debuginfo is not useful for ghc
%global debug_package %{nil}
Name: ghc-%{pkg_name}
Version: 0.1.0
Release: 1%{?dist}
Summary: %{common_summary}
Group: System Environment/Libraries
License: BSD
URL: http://hackage.haskell.org/package/%{pkg_name}
Source0: http://hackage.haskell.org/packages/archive/%{pkg_name}/%{version}/%{pkg_name}-%{version}.tar.gz
BuildRoot: %{_tmppath}/%{name}-%{version}-%{release}-root-%(%{__id_u} -n)
# fedora ghc archs:
ExclusiveArch: %{ix86} x86_64 ppc alpha
BuildRequires: ghc, ghc-doc, ghc-prof
BuildRequires: ghc-rpm-macros >= 0.7.0
%if %{with hscolour}
BuildRequires: hscolour
%endif
%{?ghc_pkg_deps:BuildRequires: %{ghc_pkg_deps}, %(echo %{ghc_pkg_deps} | sed -e "s/\(ghc-[^, ]\+\)-devel/\1-doc,\1-prof/g")}
%{?ghc_pkg_c_deps:BuildRequires: %{ghc_pkg_c_deps}}
%description
%{common_description}
%if %{with shared}
This package provides the shared library.
%endif
%prep
%setup -q -n %{pkg_name}-%{version}
%build
%ghc_lib_build
%install
rm -rf %{buildroot}
%ghc_lib_install
%clean
rm -rf %{buildroot}
%{?ghc_lib_package}
%changelog
* Sat Oct 30 2010 Ben Boeckel <mathstuf@gmail.com> - 0.1.0-1
- Update to 0.1.0
* Sat Sep 04 2010 Ben Boeckel <mathstuf@gmail.com> - 0.0.2-1
- Initial package
* Sat Sep 4 2010 Fedora Haskell SIG <haskell-devel@lists.fedoraproject.org> - 0.0.2-0
- initial packaging for Fedora automatically generated by cabal2spec-0.22.2
