--- CMakeLists.txt.orig	2015-08-22 14:09:50 UTC
+++ CMakeLists.txt
@@ -53,7 +53,7 @@ if(NOT DEFINED GDCM_API_VERSION)
 endif()
 set(GDCM_LIBRARY_PROPERTIES ${GDCM_LIBRARY_PROPERTIES}
   VERSION "${GDCM_VERSION}"
-  SOVERSION "${GDCM_API_VERSION}"
+  SOVERSION "${GDCM_MAJOR_VERSION}"
 )
 #set(GDCM_EXECUTABLE_PROPERTIES ${GDCM_EXECUTABLE_PROPERTIES}
 #  VERSION "${GDCM_MAJOR_VERSION}.${GDCM_MINOR_VERSION}"