--- CMakeLists.txt.orig	2021-07-13 10:42:01 UTC
+++ CMakeLists.txt
@@ -104,6 +104,8 @@ if(CATERVA_SHARED_LIB)
         target_link_libraries(caterva_shared ${LIBS})
     endif()
     set_target_properties(caterva_shared PROPERTIES OUTPUT_NAME caterva)
+    set_target_properties(caterva_shared PROPERTIES SOVERSION %%PORTVERSION%%)
+    set_target_properties(caterva_shared PROPERTIES VERSION 0)
     install(TARGETS caterva_shared DESTINATION lib)
 endif()