Merge pull request #2522 from HaiboZhu/Change_SharedLibVersion_v1.6

Update the SharedLibVersion to make the compatibilty

Author: HaiboZhu

Makefile

@@ -34,7 +34,7 @@ CCASFLAGS=$(CFLAGS)
 STATIC_LDFLAGS=-lstdc++
 
 VERSION=1.6
-SHAREDLIBVERSION=0
+SHAREDLIBVERSION=3
 
 ifeq (,$(wildcard $(SRC_PATH)gmp-api))
 HAVE_GMP_API=No