+Requires: boost-devel >= %{boost_ver}
+Requires: libstdc++-devel
+# for Qt5 component
+Requires: Qt5Core-devel >= %{qt5_ver}
+Requires: Qt5Gui-devel >= %{qt5_ver}
+Requires: Qt5OpenGL-devel >= %{qt5_ver}
+Requires: Qt5Widgets-devel >= %{qt5_ver}
+# for Qt3 component
+%if %{with qt3}
+Requires: qt-devel >= 3
+%endif
+# CGAL header interfaces for (using their headers) - use Suggests?
+Requires: gmp-c++-devel >= 4.1.4
+Requires: gmp-devel >= 4.1.4
+Requires: mpfr-devel >= 2.2.1
+#Suggests: eigen3 >= 3.1 gsl-devel tbb-devel vtk-devel
+#Suggests(TODO): <rs_exports.h> <rs3_fncts.h> <taucs.h> <OpenMesh/Core/Mesh/PolyMesh_ArrayKernelT.hh> <NTL/ZZX.h> <mpfi.h> <LEDA/*.h> <ipelib.h>
+Requires: zlib-devel
+# CGAL header interfaces for (without using their headers) - use Suggests?