dart3_gtest.patch

diff --git a/CMakeLists.txt b/CMakeLists.txt
index f04f57a..9ec95ab 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -18,6 +18,7 @@ message(STATUS "CMAKE_BINARY_DIR = ${CMAKE_BINARY_DIR}")
 
 option(BUILD_SNOPT "Build with SNOPT optimizer" OFF)
 option(BUILD_CORE_ONLY "Build only the core of DART" OFF)
+option(BUILD_UNITTESTS "Build unit tests" ON)
 if(NOT MSVC)
     OPTION(BUILD_SHARED_LIBS "Build shared libraries" ON)
 endif()
@@ -153,8 +154,10 @@ install(FILES ${PC_CONFIG_OUT} DESTINATION lib/pkgconfig)
 ###############
 add_subdirectory(src)
 if(NOT BUILD_CORE_ONLY)
-  enable_testing()
-  add_subdirectory(unittests)
+  if(BUILD_UNITTESTS)
+    enable_testing()
+    add_subdirectory(unittests)
+  endif()
   add_subdirectory(apps)
 endif()