Index: tqsl-2.6.2/src/CMakeLists.txt
===================================================================
--- tqsl-2.6.2.orig/src/CMakeLists.txt
+++ tqsl-2.6.2/src/CMakeLists.txt
@@ -55,6 +55,7 @@ endif()
 add_library(${TQSLLIBNAME} ${TQSLLIBTYPE} ${TQSLLIB_SRC} ${TQSLLIB_HDR} ${TQSLLIB_RCFILE})
 target_link_libraries(${TQSLLIBNAME} ${OPENSSL_LIBRARIES} ${EXPAT_LIBRARIES} ${ZLIB_LIBRARIES} ${BDB_LIBRARIES} ${LMDB_LIBRARIES} ${CARBON_LIBRARY})
 include_directories(${OPENSSL_INCLUDE_DIR} ${ZLIB_INCLUDE_DIR} ${EXPAT_INCLUDE_DIR} ${BDB_INCLUDE_DIR} ${LMDB_INCLUDE_DIR} ${CARBON_INCLUDE_DIR})
+set_target_properties(${TQSLLIBNAME} PROPERTIES SOVERSION ${TQSLLIB_VERSION})
 
 if(NOT APPLE AND NOT WIN32)
 set(HEADERS_TO_INSTALL tqsllib.h tqslerrno.h cabrillo.h adif.h tqslconvert.h)