the building of /src/shared/libosmocore

Hi, when I try to modify the structures in /src<http://cgit.osmocom.org/cgit/osmocom-bb/tree/src> /shared <http://cgit.osmocom.org/cgit/osmocom-bb/tree/src/shared>/ libosmocore<http://cgit.osmocom.org/cgit/osmocom-bb/tree/src/shared/libo… /include<http://cgit.osmocom.org/cgit/osmocom-bb/tree/src/shared/libosmocore/include> /osmocom<http://cgit.osmocom.org/cgit/osmocom-bb/tree/src/shared/libosmocore/include/osmocom> /gsm<http://cgit.osmocom.org/cgit/osmocom-bb/tree/src/shared/libosmocore/include/osmocom/gsm> /protocol<http://cgit.osmocom.org/cgit/osmocom-bb/tree/src/shared/libosmocore/include/osmocom/gsm/protocol>/gsm_04_08.h file in the dir, and rebuild the project, but it seems can`t impact the file src <http://cgit.osmocom.org/cgit/osmocom-bb/tree/src>/host<http://cgit.osmocom.org/cgit/osmocom-bb/tree/src/host> /layer23 <http://cgit.osmocom.org/cgit/osmocom-bb/tree/src/host/layer23>/src<http://cgit.osmocom.org/cgit/osmocom-bb/tree/src/host/layer23/src> /misc<http://cgit.osmocom.org/cgit/osmocom-bb/tree/src/host/layer23/src/misc>/app_ccch_scan.c; it is so strange! does anyone meet the similar problem?