Revert "[cmake] Update SOVERSION for the new versioning scheme"

This reverts commit r292255.

llvm-svn: 353247

Author: tstellar

llvm/cmake/modules/AddLLVM.cmake

@@ -498,9 +498,11 @@ function(llvm_add_library name)
     if(UNIX AND NOT APPLE AND NOT ARG_SONAME)
       set_target_properties(${name}
         PROPERTIES
-        # Since 4.0.0, the ABI version is indicated by the major version
-        SOVERSION ${LLVM_VERSION_MAJOR}
-        VERSION ${LLVM_VERSION_MAJOR}.${LLVM_VERSION_MINOR}.${LLVM_VERSION_PATCH}${LLVM_VERSION_SUFFIX})
+		# Concatenate the version numbers since ldconfig expects exactly
+		# one component indicating the ABI version, while LLVM uses
+		# major+minor for that.
+        SOVERSION ${LLVM_VERSION_MAJOR}${LLVM_VERSION_MINOR}
+        VERSION ${LLVM_VERSION_MAJOR}${LLVM_VERSION_MINOR}.${LLVM_VERSION_PATCH}${LLVM_VERSION_SUFFIX})
     endif()
   endif()