THRIFT-4163: update cmake build type handling
diff --git a/build/cmake/DefineOptions.cmake b/build/cmake/DefineOptions.cmake
index e9b094c..8e334d9 100644
--- a/build/cmake/DefineOptions.cmake
+++ b/build/cmake/DefineOptions.cmake
@@ -145,6 +145,9 @@
 message(STATUS "Thrift version:                               ${thrift_VERSION} (${thrift_VERSION_MAJOR}.${thrift_VERSION_MINOR}.${thrift_VERSION_PATCH})")
 message(STATUS "Thrift package version:                       ${PACKAGE_VERSION}")
 message(STATUS "Build configuration Summary")
+if (UNIX)
+    message(STATUS "  Build type:                                 ${CMAKE_BUILD_TYPE}")
+endif ()
 message(STATUS "  Build Thrift compiler:                      ${BUILD_COMPILER}")
 message(STATUS "  Build compiler plugin support:              ${WITH_PLUGIN}")
 message(STATUS "  Build with unit tests:                      ${BUILD_TESTING}")