%build
perl Makefile.PL
-make OPTIMIZE="$RPM_OPT_FLAGS"
+%{__make} OPTIMIZE="$RPM_OPT_FLAGS"
%install
rm -rf $RPM_BUILD_ROOT
-make install DESTDIR=$RPM_BUILD_ROOT
+%{__make} install DESTDIR=$RPM_BUILD_ROOT
strip --strip-unneeded $RPM_BUILD_ROOT/%{perl_sitearch}/auto/Math/PRSG/*.so