CMAKE_MINIMUM_REQUIRED(VERSION 2.8.12)

PROJECT(check_type_size C)

INCLUDE(CheckTypeSize)

# Commenting the following 2 lines fixes the issue
CHECK_TYPE_SIZE("int" INT_SIZE BUILTIN_TYPES_ONLY)
message("HAVE_INT_SIZE:${HAVE_INT_SIZE}")

CHECK_TYPE_SIZE("size_t" SIZET_SIZE)
message("HAVE_SIZET_SIZE:${HAVE_SIZET_SIZE}")