Added the SOVERSION same as autotools.

Set CMAKE_MINIMUM_REQUIRED to 2.6.4.

Author: redboltz

CMakeLists.txt

@@ -1,11 +1,10 @@
-CMAKE_MINIMUM_REQUIRED (VERSION 2.8.7)
+CMAKE_MINIMUM_REQUIRED (VERSION 2.6.4)
 PROJECT (msgpack)
 
 SET (VERSION 0.5.7)
 SET (VERSION_MAJOR 5)
 SET (VERSION_MINOR 7)
 
-
 FIND_PACKAGE (GTest)
 FIND_PACKAGE (ZLIB)
 FIND_PACKAGE (Threads)
@@ -149,6 +148,7 @@ ADD_LIBRARY (msgpack-static STATIC
 
 SET_TARGET_PROPERTIES (msgpack-static PROPERTIES OUTPUT_NAME "msgpack")
 SET_TARGET_PROPERTIES (msgpack PROPERTIES IMPORT_SUFFIX "_import.lib")
+SET_TARGET_PROPERTIES (msgpack PROPERTIES SOVERSION 3 VERSION 3.0.0)
 
 IF (MSGPACK_BUILD_TESTS)
 	ENABLE_TESTING ()