Re-introduce -g -rdynamic -ggdb when linking, fixing strack traces.

A previous commit removed -g -rdynamic -ggdb as LDFLAGS, not allowing
Redis to produce a stack trace wth symbol names on crash.
This commit fixes the issue.

src/Makefile

@@ -47,12 +47,12 @@ endif
 
 ifeq ($(uname_S),SunOS)
   FINAL_CFLAGS= $(STD) $(WARN) $(OPT) $(DEBUG) $(CFLAGS) $(REDIS_CFLAGS) -D__EXTENSIONS__ -D_XPG6
-  FINAL_LDFLAGS= $(LDFLAGS) $(REDIS_LDFLAGS)
+  FINAL_LDFLAGS= $(LDFLAGS) $(REDIS_LDFLAGS) -g -ggdb
   FINAL_LIBS= -ldl -lnsl -lsocket -lm -lpthread
   DEBUG= -g -ggdb
 else
   FINAL_CFLAGS= $(STD) $(WARN) $(OPT) $(DEBUG) $(CFLAGS) $(REDIS_CFLAGS)
-  FINAL_LDFLAGS= $(LDFLAGS) $(REDIS_LDFLAGS)
+  FINAL_LDFLAGS= $(LDFLAGS) $(REDIS_LDFLAGS) -g -rdynamic -ggdb
   FINAL_LIBS= -lm -pthread
   DEBUG= -g -rdynamic -ggdb
 endif