--- citus-12.1.7/src/backend/distributed/Makefile.orig
+++ citus-12.1.7/src/backend/distributed/Makefile
@@ -18,7 +18,7 @@
 DATA_built = $(generated_sql_files)
 
 # directories with source files
-SUBDIRS = . commands connection ddl deparser executor metadata operations planner progress relay safeclib shardsplit test transaction utils worker clock
+SUBDIRS = commands connection ddl deparser executor metadata operations planner progress relay safeclib shardsplit test transaction utils worker clock
 # enterprise modules
 SUBDIRS += replication
 
@@ -31,6 +31,8 @@
 OBJS += \
 	$(patsubst $(citus_abs_srcdir)/%.c,%.o,$(foreach dir,$(SUBDIRS), $(sort $(wildcard $(citus_abs_srcdir)/$(dir)/*.c))))
 
+OBJS += shared_library_init.o
+
 # be explicit about the default target
 .PHONY: cdc