Also on Linux do not export symbols from static orcus libraries
Also on Linux do not export symbols from static orcus libraries

...otherwise e.g. running CppunitTest_sc_filters_test under -fsanitize=address
complains about ODR violation of 'vtable for orcus::csv::parse_error' exported
from both libsclo.so and libscqahelper.so.

A problem could potentially arise with exceptions thrown from static orcus code
linked into library and intended to be caught in another, but hopefully all such
exceptions are intended to be caught already locally anyway.

Change-Id: Iff5c73d7a2324b457c2e86656c11b18f7ba210f6

JurassicWordExcel/core,JurassicWordExcel/core,JurassicWordExcel/core,JurassicWordExcel/core,JurassicWordExcel/core,JurassicWordExcel/core,JurassicWordExcel/core,JurassicWordExcel/core,JurassicWordExcel/core,JurassicWordExcel/core