[FDBSYNCD] Added support for FDBSYNCD as described in the PR

sonic-net/SONiC#437

Author: kishorekunal01

.gitignore

@@ -56,6 +56,7 @@ gearsyncd/gearsyncd
 mclagsyncd/mclagsyncd
 natsyncd/natsyncd
 neighsyncd/neighsyncd
+fdbsyncd/fdbsyncd
 orchagent/orchagent
 orchagent/orchagent_restart_check
 orchagent/routeresync

Makefile.am

@@ -1,4 +1,4 @@
-SUBDIRS = fpmsyncd neighsyncd portsyncd mclagsyncd natsyncd orchagent swssconfig cfgmgr tests gearsyncd
+SUBDIRS = fpmsyncd neighsyncd fdbsyncd portsyncd mclagsyncd natsyncd orchagent swssconfig cfgmgr tests gearsyncd
 
 if HAVE_LIBTEAM
 SUBDIRS += teamsyncd tlm_teamd

configure.ac

@@ -92,6 +92,7 @@ AC_CONFIG_FILES([
     fpmsyncd/Makefile
     neighsyncd/Makefile
     gearsyncd/Makefile
+    fdbsyncd/Makefile
     natsyncd/Makefile
     portsyncd/Makefile
     teamsyncd/Makefile

fdbsyncd/Makefile.am

@@ -0,0 +1,17 @@
+INCLUDES = -I $(top_srcdir) -I $(top_srcdir)/warmrestart   -I ../nlapi/include -I ../cfgmgr
+NLAPI_LIBS = ../nlapi/libnlapi.a
+
+bin_PROGRAMS = fdbsyncd
+
+if DEBUG
+DBGFLAGS = -ggdb -DDEBUG
+else
+DBGFLAGS = -g
+endif
+
+fdbsyncd_SOURCES = fdbsyncd.cpp fdbsync.cpp $(top_srcdir)/warmrestart/warmRestartAssist.cpp
+
+fdbsyncd_CFLAGS = $(DBGFLAGS) $(AM_CFLAGS) $(CFLAGS_COMMON) $(COV_CFLAGS)
+fdbsyncd_CPPFLAGS = $(DBGFLAGS) $(AM_CFLAGS) $(CFLAGS_COMMON) $(COV_CFLAGS)
+fdbsyncd_LDADD = -lnl-3 -lnl-route-3 -lswsscommon $(NLAPI_LIBS) $(COV_LDFLAGS)
+