Summary:	SZIP - Science Data Lossless Compression library
Name:		szip
Version:	2.1
Release:	1
License:	free for non-commercial, scientific use only in HDF software
Group:		System/Libraries
Source0:	ftp://ftp.hdfgroup.org/lib-external/%{name}/%{version}/%{name}-%{version}.tar.gz
URL:		http://hdf.ncsa.uiuc.edu/doc_resource/SZIP/
BuildRoot:      %{_tmppath}/%{name}-%{version}-%{release}-root

%define _libdir64 %{_prefix}/lib64

%description
SZIP is an implementation of the extended-Rice lossless compression
algorithm. The Consultative Committee on Space Data Systems (CCSDS)
has adopted the extended-Rice algorithm for international standards
for space applications. SZIP is reported to provide fast and effective
compression, specifically for the EOS data generated by the NASA Earth
Observatory System (EOS). It was originally developed at University of
New Mexico (UNM) and integrated with HDF4 by UNM researchers and
developers.


%package devel
Summary:	Header files for SZIP library
Group:		Development/C	
Requires:	%{name} = %{version}-%{release}

%description devel
Header files for SZIP library.


%prep
%setup -q
mkdir ../32bit
mv * ../32bit
mv ../32bit .
mkdir 64bit
cd 32bit && tar cf - . | (cd ../64bit ; tar xpf -)


%build
cd 64bit
# first build the 64-bit version
export OBJECT_MODE=64
export LDFLAGS="-L/opt/freeware/lib64 -L/opt/freeware/lib -Wl,-blibpath:/opt/freeware/lib64:/opt/freeware/lib:/usr/lib:/lib -Wl,-bmaxdata:0x80000000"
./configure \
    --prefix=%{_prefix} \
    --libdir=%{_libdir64} \
    --enable-shared --disable-static
make %{?_smp_mflags}

cd ../32bit
# now build the 32-bit version
export OBJECT_MODE=32
export LDFLAGS="-L/opt/freeware/lib -Wl,-blibpath:/opt/freeware/lib:/usr/lib:/lib -Wl,-bmaxdata:0x80000000"
./configure \
    --prefix=%{_prefix} \
    --enable-shared --disable-static
make %{?_smp_mflags}


%install
[ "${RPM_BUILD_ROOT}" != "/" ] && rm -rf ${RPM_BUILD_ROOT}

cd 64bit
export OBJECT_MODE=64
make DESTDIR=${RPM_BUILD_ROOT} install

cd ../32bit
export OBJECT_MODE=32
make DESTDIR=${RPM_BUILD_ROOT} install

(
  cd ${RPM_BUILD_ROOT}%{_libdir64}
  for f in *.a ; do
    /usr/bin/ar -X64 -x ${f}
  done

  cd ${RPM_BUILD_ROOT}%{_libdir}
  for f in *.a ; do
    /usr/bin/ar -X32 -x ${f}
  done
)

# add the 64-bit shared objects to the shared libraries containing already the
# 32-bit shared objects
/usr/bin/ar -X64 -q ${RPM_BUILD_ROOT}%{_libdir}/libsz.a ${RPM_BUILD_ROOT}%{_libdir64}/libsz.so*

(
  cd ${RPM_BUILD_ROOT}
  for dir in include lib
  do
    mkdir -p usr/${dir}
    cd usr/${dir}
    ln -sf ../..%{_prefix}/${dir}/* .
    cd -
  done
)


%clean
[ "${RPM_BUILD_ROOT}" != "/" ] && rm -rf ${RPM_BUILD_ROOT}


%files
%defattr(-,root,system)
%doc 32bit/COPYING 32bit/RELEASE.txt
%{_libdir}/lib*.a
%{_libdir}/lib*.so*
/usr/lib/lib*.a
/usr/lib/lib*.so*


%files devel
%defattr(-,root,system)
%{_includedir}/*.h
%{_libdir}/*.la
/usr/include/*
/usr/lib/*.la


%changelog
* Sun Nov 27 2016 Michael Perzl <michael@perzl.org> - 2.1-1
- first version for AIX5L v5.1 and higher