diff --git a/CMakeLists.txt b/CMakeLists.txt
index 6259f66..b9799de 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -6,6 +6,9 @@
 
 # 3.12 for CMAKE_PROJECT_VERSION
 cmake_minimum_required(VERSION 3.12)
+# Use new policy for option() to supress warnings.
+set(CMAKE_POLICY_DEFAULT_CMP0077 NEW)
+
 
 include(${CMAKE_SOURCE_DIR}/version.txt)
 
diff --git a/src/build_config/CMakeLists.txt b/src/build_config/CMakeLists.txt
index 2f64196..77fff10 100644
--- a/src/build_config/CMakeLists.txt
+++ b/src/build_config/CMakeLists.txt
@@ -51,6 +51,10 @@ message(STATUS "CMAKE_EXE_LINKER_FLAGS_MINSIZEREL: ${CMAKE_EXE_LINKER_FLAGS_MINS
 message(STATUS "CMAKE_EXE_LINKER_FLAGS_RELEASE: ${CMAKE_EXE_LINKER_FLAGS_RELEASE}")
 message(STATUS "CMAKE_EXE_LINKER_FLAGS_RELWITHDEBINFO: ${CMAKE_EXE_LINKER_FLAGS_RELWITHDEBINFO}")
 
+# Suppress warning about manually specified variables not being used (this is a very common variable)
+message(STATUS "CMAKE_C_COMPILER: ${CMAKE_C_COMPILER}")
+
+
 # These variables are used in build_config.in.h
 if ("${CMAKE_SYSTEM_NAME}" MATCHES "Windows"
 		OR "${CMAKE_SYSTEM_NAME}" MATCHES "CYGWIN.*")