Index: cmake/modules/EmbedAppleVersion.cmake
===================================================================
--- cmake/modules/EmbedAppleVersion.cmake
+++ cmake/modules/EmbedAppleVersion.cmake
@@ -1,6 +1,10 @@
-execute_process(COMMAND /usr/libexec/PlistBuddy -c "Print:CFBundleVersion" ${LLDB_INFO_PLIST}
-                OUTPUT_VARIABLE BundleVersion
-                OUTPUT_STRIP_TRAILING_WHITESPACE)
+if(LLDB_VERSION)
+  set(LLDB_VERSION_STRING ${LLDB_VERSION})
+else()
+  execute_process(COMMAND /usr/libexec/PlistBuddy -c "Print:CFBundleVersion" ${LLDB_INFO_PLIST}
+                  OUTPUT_VARIABLE BundleVersion
+                  OUTPUT_STRIP_TRAILING_WHITESPACE)
+endif()
 
 file(APPEND "${HEADER_FILE}.tmp"
     "#define LLDB_VERSION_STRING lldb-${BundleVersion}\n")