Define SOVERSION (#174)

Author: Stefan Wahren

CMakeLists.txt

@@ -118,7 +118,9 @@ if(NOT MSVC)
   target_compile_options(${PROJECT_NAME} PRIVATE -Wall -Wextra -Wno-pedantic)
 endif()
 
-set_target_properties(${PROJECT_NAME} PROPERTIES PREFIX "")
+set_target_properties(${PROJECT_NAME}
+   PROPERTIES PREFIX ""
+   SOVERSION ${VERSION})
 
 if(CLANG_TIDY_EXE)
   set_target_properties(${PROJECT_NAME} PROPERTIES CXX_CLANG_TIDY "${CLANG_TIDY_EXE}")