%if 0%{?rhel} < 7
%{!?__global_ldflags: %global __global_ldflags -Wl,-z,relro}
%endif

Name: qrmumps
Version: 2.0
Release: 4%{?dist}
Summary: A multithreaded multifrontal QR solver
License: LGPLv3+
Group: Development/Libraries
URL: http://buttari.perso.enseeiht.fr/qr_mumps/

# This is a private source link provided by upstream directly
Source0: http://buttari.perso.enseeiht.fr/qr_mumps/releases/%{version}/qr_mumps-%{version}.tgz

# Custom Makefile changed for Fedora and built from Make.inc/Makefile.gfortran.PAR in the source.
Source1: %{name}-Makefile.inc

# Files for testing
Source2: http://www.cise.ufl.edu/research/sparse/MM/vanHeukelum/cage6.tar.gz
Source3: http://www.cise.ufl.edu/research/sparse/MM/Meszaros/pltexpa.tar.gz
Source4: http://www.cise.ufl.edu/research/sparse/MM/Yoshiyasu/image_interp.tar.gz

BuildRequires: gcc-gfortran
BuildRequires: blas-devel
BuildRequires: lapack-devel
BuildRequires: metis-devel >= 5.1.0-12
BuildRequires: scotch-devel
BuildRequires: perl-devel
%if 0%{?fedora}
BuildRequires: perl-generators
%endif

Requires: gcc-gfortran%{?_isa}

Provides: qr_mumps = 0:%{version}-%{release}
Obsoletes: qr_mumps < 0:2.0-4

%description
qr_mumps is a software package for the solution of sparse,
linear systems on multicore computers.
It implements a direct solution method based on the QR
factorization of the input matrix. Therefore, it is suited
to solving sparse least-squares problems and to computing
the minimum-norm solution of sparse, underdetermined problems.
It can obviously be used for solving square problems in which
case the stability provided by the use of orthogonal transformations
comes at the cost of a higher operation count with respect to solvers
based on, e.g., the LU factorization.
qr_mumps supports real and complex, single or double precision arithmetic.

%package devel
Summary: Development files for %{name}
Group: Development/Libraries
Requires: %{name}%{?_isa} = %{version}-%{release}
%description devel
Shared links and header files of %{name}.

%package doc
Summary: PDF documentation files of %{name}
Group: Development/Libraries
BuildArch: noarch
%description doc
PDF documentation files of %{name}.

########################################################

%prep
%setup -q -n qr_mumps-%{version}

cp -p %{SOURCE1} makeincs/Make.inc.fedora

%build
# Parallel Make is not supported
make BUILD=build PLAT=fedora ARITH='d s c z' \
 topdir=$PWD \
 CC=gcc \
 FC=gfortran \
 FCFLAGS="%{optflags} -I%{_fmoddir} -fopenmp -fPIC -Wl,-z,now" \
 CFLAGS="%{optflags} -fopenmp -fPIC -Wl,-z,now" \
 CDEFS=" -Dhave_metis -Dhave_scotch" \
 FDEFS=" -Dhave_metis -Dhave_scotch" \
 LCOLAMD="" \
 ICOLAMD="" \
 LBLAS=-lblas \
 LLAPACK=-llapack \
 LMETIS=" -lmetis" \
 IMETIS=" -I%{_includedir}" \
 LSCOTCH=" -lscotch -lscotcherr" \
 ISCOTCH=" -I%{_includedir}"

# Make shared libraries
pushd build/lib
gfortran -shared %{__global_ldflags} -fPIC -Wl,-z,now -Wl,--whole-archive libqrm_common.a -Wl,-no-whole-archive -Wl,--as-needed -L%{_libdir} -lmetis -lgfortran -lm -lrt -Wl,-soname,libqrm_common.so.%{version} -o libqrm_common.so.%{version}

gfortran -shared %{__global_ldflags} -fPIC -Wl,-z,now -Wl,--whole-archive libdqrm.a libqrm_common.a -Wl,-no-whole-archive -L./ -lqrm_common -Wl,--as-needed -L%{_libdir} -lblas -llapack -lscotch -lscotcherr -lmetis -lgfortran -lm -lrt -Wl,-soname,libdqrm.so.%{version} -o libdqrm.so.%{version}

gfortran -shared %{__global_ldflags} -fPIC -Wl,-z,now -Wl,--whole-archive libcqrm.a libqrm_common.a -Wl,-no-whole-archive -L./ -lqrm_common -Wl,--as-needed -L%{_libdir} -lblas -llapack -lscotch -lscotcherr -lmetis -lgfortran -lm -lrt -Wl,-soname,libcqrm.so.%{version} -o libcqrm.so.%{version}

gfortran -shared %{__global_ldflags} -fPIC -Wl,-z,now -Wl,--whole-archive libzqrm.a libqrm_common.a -Wl,-no-whole-archive -L./ -lqrm_common -Wl,--as-needed -L%{_libdir} -lblas -llapack -lscotch -lscotcherr -lmetis -lgfortran -lm -lrt -Wl,-soname,libzqrm.so.%{version} -o libzqrm.so.%{version}

gfortran -shared %{__global_ldflags} -fPIC -Wl,-z,now -Wl,--whole-archive libsqrm.a libqrm_common.a -Wl,-no-whole-archive -L./ -lqrm_common -Wl,--as-needed -L%{_libdir} -lblas -llapack -lscotch -lscotcherr -lmetis -lgfortran -lm -lrt -Wl,-soname,libsqrm.so.%{version} -o libsqrm.so.%{version}
popd

%post -p /sbin/ldconfig
%postun -p /sbin/ldconfig

%check
pushd build/testing
make \
 topdir=../../ \
 CC=gcc \
 FC=gfortran \
 FCFLAGS="%{optflags} -I%{_fmoddir} -fopenmp -fPIC -Wl,-z,now" \
 CFLAGS="%{optflags} -fopenmp -fPIC -Wl,-z,now" \
 CDEFS=" -Dhave_metis -Dhave_scotch" \
 FDEFS=" -Dhave_metis -Dhave_scotch" \
 LCOLAMD="" \
 ICOLAMD="" \
 LBLAS=-lblas \
 LLAPACK=-llapack \
 LMETIS=" -lmetis" \
 IMETIS=" -I%{_includedir}" \
 LSCOTCH=" -lscotch -lscotcherr" \
 ISCOTCH=" -I%{_includedir}"

echo 3 > matfile.txt
tar -zxf %{SOURCE2}; echo cage6/cage6.mtx >> matfile.txt
tar -zxf %{SOURCE3}; echo pltexpa/pltexpa.mtx >> matfile.txt
tar -zxf %{SOURCE4}; echo image_interp/image_interp.mtx >> matfile.txt

export LD_LIBRARY_PATH=$RPM_BUILD_ROOT%{_libdir}:%{_libdir}
export QRM_NUM_THREADS=2
./dqrm_testing

%install
mkdir -p $RPM_BUILD_ROOT%{_includedir}/%{name}
mkdir -p $RPM_BUILD_ROOT%{_fmoddir}/%{name}

pushd build/lib
install -pm 755 *.so.%{version} $RPM_BUILD_ROOT%{_libdir}

ln -sf %{_libdir}/libqrm_common.so.%{version} $RPM_BUILD_ROOT%{_libdir}/libqrm_common.so.2
ln -sf %{_libdir}/libqrm_common.so.%{version} $RPM_BUILD_ROOT%{_libdir}/libqrm_common.so

ln -sf %{_libdir}/libdqrm.so.%{version} $RPM_BUILD_ROOT%{_libdir}/libdqrm.so.2
ln -sf %{_libdir}/libdqrm.so.%{version} $RPM_BUILD_ROOT%{_libdir}/libdqrm.so

ln -sf %{_libdir}/libcqrm.so.%{version} $RPM_BUILD_ROOT%{_libdir}/libcqrm.so.2
ln -sf %{_libdir}/libcqrm.so.%{version} $RPM_BUILD_ROOT%{_libdir}/libcqrm.so

ln -sf %{_libdir}/libzqrm.so.%{version} $RPM_BUILD_ROOT%{_libdir}/libzqrm.so.2
ln -sf %{_libdir}/libzqrm.so.%{version} $RPM_BUILD_ROOT%{_libdir}/libzqrm.so

ln -sf %{_libdir}/libsqrm.so.%{version} $RPM_BUILD_ROOT%{_libdir}/libsqrm.so.2
ln -sf %{_libdir}/libsqrm.so.%{version} $RPM_BUILD_ROOT%{_libdir}/libsqrm.so
popd

install -pm 644 build/include/*.h $RPM_BUILD_ROOT%{_includedir}/%{name}
install -pm 644 build/include/*.mod $RPM_BUILD_ROOT%{_fmoddir}/%{name}

%files
%license doc/COPYING.LESSER
%doc Changelog.org
%{_libdir}/lib*qrm.so.*
%{_libdir}/libqrm_common.so.*

%files devel
%{_includedir}/%{name}/
%{_fmoddir}/%{name}/
%{_libdir}/lib*qrm.so
%{_libdir}/libqrm_common.so

%files doc
%license doc/COPYING.LESSER
%doc doc/pdf/*.pdf

%changelog
* Sun Dec 04 2016 Antonio Trande <sagitterATfedoraproject.org> - 2.0-4
- Package renamed as qrmumps for packaging needs
- Set Provides Obsoletes tags
- License changed to LGPLv3+

* Thu Jul 07 2016 Antonio Trande <sagitterATfedoraproject.org> - 2.0-3
- Fix symbolic links
- Fix unused-direct-shlib-dependency warnings

* Thu Jul 07 2016 Antonio Trande <sagitterATfedoraproject.org> - 2.0-2
- Fix %%doc line

* Thu Jul 07 2016 Antonio Trande <sagitterATfedoraproject.org> - 2.0-1
- Update to 2.0

* Mon Mar 07 2016 Antonio Trande <sagitterATfedoraproject.org> - 1.2-3
- Fixed ln commands

* Fri Feb 19 2016 Antonio Trande <sagitterATfedoraproject.org> - 1.2-2
- Use Conditional Builds macro
- Remove pkgconfig BR

* Sat Feb 13 2016 Antonio Trande <sagitterATfedoraproject.org> - 1.2-1
- Initial package