Update library packaging: split to slop and libslopy

Two things have been changed in upstream: build system now properly
places 64-bit .so under %{_libdir}, and the .so itself now contains
versioned SONAME.

This means we can remove workaround for the first issue and start
packaging library separately.  This is much closer to FPG than before.

slop.spec.in

 BuildRequires: libXrender-devel
 BuildRequires: mesa-libEGL-devel
 
+Requires: libslopy = %{version}-%{release}
 %description
 slop (Select Operation) is an application that queries for a selection
 from the user and prints the region to stdout.
 
+%package -n libslopy
+Summary: Select Operation
+Group: System Environment/Libraries
+%description -n libslopy
+slop (Select Operation) is an application that queries for a selection
+from the user and prints the region to stdout.
+
+This sub-package contains libslopy library.
+
+%package -n libslopy-devel
+Summary:    Select Operation
+Group: Development/Libraries
+Requires: libslopy = %{version}-%{release}
+%description -n libslopy-devel
+slop (Select Operation) is an application that queries for a selection
+from the user and prints the region to stdout.
+
+This sub-package contains development files for libslopy library.
+
 %prep
 %autosetup -n %{name}-%{version}
 
 
 %install
 %make_install
-mkdir -p "%{buildroot}%{_libdir}"
-mv %{buildroot}/usr/lib/libslopy.so "%{buildroot}%{_libdir}"
-rm %{buildroot}/usr/include/slop.hpp
+
+%post -n libslopy
+/sbin/ldconfig
+
+%postun -n libslopy
+/sbin/ldconfig
 
 %files
 %{_bindir}/slop
-%{_libdir}/libslopy.so
 %{_mandir}/man1/slop.1.gz
 
+%files -n libslopy
+%{_libdir}/libslopy.so.%{version}
+
+%files -n libslopy-devel
+%{_libdir}/libslopy.so
+%{_includedir}/slop.hpp
+
 %changelog
 * __APP_DATE__ Alois Mahdal <netvor+slop@vornet.cz> - __APP_VERSION__-__APP_RELEASE__
 - Unofficial experimental RPM pseudo-release