This command separates the linker options ``-L'' and ``-l'' by library class. It's argument line can
actually be an arbitrary command line where those options are contained. slo parses these two options
only and ignores the remaining contents. The result is a trivial shell script on "stdout" which defines
six variables containing the ``-L'' and ``-l'' options sorted by class:
``"SLO_DIRS_OBJ"'' and ``"SLO_LIBS_OBJ"'' contains the ``-L'' and ``-l'' options of static libraries,
``"SLO_DIRS_PIC"'' and ``"SLO_LIBS_PIC"'' contains the ``-L'' and ``-l'' options of static libraries
containing PIC ("Position Independent Code") and ``"SLO_DIRS_DSO"'' and ``"SLO_LIBS_DSO"'' contains the
``-L'' and ``-l'' options of shared libraries. The -p option can be used to change the default variable
prefix from ""SLO_"" to str.
The intent of this separation is to provide a way between static and shared libraries which is important
if one wants to link custom DSOs against libraries, because not all platforms all one to link these DSOs
against shared libraries. So one first has to separate out the shared libraries and link the DSO only
against the static libraries. One can use this command also to just sort the options.