The build log shows those warnings - warnings during the build: In file included from src/ldaclib.c:37: src/sigana_ldac.c: In function ‘ana_frame_status_ldac’: src/sigana_ldac.c:178:24: warning: ‘a_status’ may be used uninitialized [-Wmaybe-uninitialized] 178 | return a_status[0]; | ~~~~~~~~^~~ src/sigana_ldac.c:133:9: note: ‘a_status’ declared here 133 | int a_status[LDAC_PRCNCH]; | ^~~~~~~~ src/sigana_ldac.c: In function ‘ana_frame_status_ldac’: src/sigana_ldac.c:178:24: warning: ‘a_status’ may be used uninitialized [-Wmaybe-uninitialized] 178 | return a_status[0]; | ^ src/sigana_ldac.c:133:9: note: ‘a_status’ declared here 133 | int a_status[LDAC_PRCNCH]; | ^ Unsure what the impact of the uninitialized variables would be nice but seems worth fixing