diff --git a/CMakeLists.txt b/CMakeLists.txt
index 07fcb62355..9a63b169f3 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -41,12 +41,23 @@ elseif(MSVC)
  set(BUILD_SHARED_LIBS OFF)
 endif()
 
+# When incorporating ortools in a CMake Project, then only C++ library will be built.
+# Consequently Python, Java and C# wrapper won't be built.
+if("^${CMAKE_SOURCE_DIR}$" STREQUAL "^${PROJECT_SOURCE_DIR}$")
+	set(ORTOOLS_IS_SUBPROJECT FALSE)
+else()
+	set(ORTOOLS_IS_SUBPROJECT TRUE)
+endif()
+
 include(CMakeDependentOption)
 option(BUILD_DEPS "Force re-build of all dependencies" ON)
 option(BUILD_CXX "Build C++ library" ON)
-CMAKE_DEPENDENT_OPTION(BUILD_PYTHON "Build Python Library" ON "BUILD_CXX"	OFF)
-CMAKE_DEPENDENT_OPTION(BUILD_JAVA "Build Java Library" OFF "BUILD_CXX" OFF)
-CMAKE_DEPENDENT_OPTION(BUILD_CSHARP "Build CSharp Library" OFF "BUILD_CXX" OFF)
+CMAKE_DEPENDENT_OPTION(BUILD_PYTHON	"Build Python Library" ON
+	"BUILD_CXX; NOT ORTOOLS_IS_SUBPROJECT"	OFF)
+CMAKE_DEPENDENT_OPTION(BUILD_JAVA "Build Java Library" OFF
+	"BUILD_CXX; NOT ORTOOLS_IS_SUBPROJECT" OFF)
+CMAKE_DEPENDENT_OPTION(BUILD_CSHARP "Build CSharp Library" OFF
+	"BUILD_CXX; NOT ORTOOLS_IS_SUBPROJECT" OFF)
 
 message(STATUS "Build all dependencies: ${BUILD_DEPS}")
 message(STATUS "Build CXX library: ${BUILD_CXX}")