THRIFT-4163: update cmake build type handling
diff --git a/build/cmake/DefineCMakeDefaults.cmake b/build/cmake/DefineCMakeDefaults.cmake
index 7ae2136..6714357 100644
--- a/build/cmake/DefineCMakeDefaults.cmake
+++ b/build/cmake/DefineCMakeDefaults.cmake
@@ -34,17 +34,12 @@
# since cmake 2.4.0
set(CMAKE_COLOR_MAKEFILE ON)
-# Set the default build type to release with debug info
-if (NOT CMAKE_BUILD_TYPE)
- set(CMAKE_BUILD_TYPE RelWithDebInfo
- CACHE STRING
- "Choose the type of build, options are: None Debug Release RelWithDebInfo MinSizeRel."
- )
-endif (NOT CMAKE_BUILD_TYPE)
-
# Create the compile command database for clang by default
set(CMAKE_EXPORT_COMPILE_COMMANDS ON)
+# Set the CMAKE_BUILD_TYPE if it is not already defined
+include(BuildType)
+
# Put the libraries and binaries that get built into directories at the
# top of the build tree rather than in hard-to-find leaf
# directories. This simplifies manual testing and the use of the build