diff --git a/CMakeLists.txt b/CMakeLists.txt
index 2006604..c9fedb9 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -323,6 +323,7 @@ if (USE_THREAD)
   endif()
 endif()
 
+if(BUILD_TESTING)
 #if (MSVC OR NOT NOFORTRAN)
 if (NOT NO_CBLAS)
   if (NOT ONLY_CBLAS)
@@ -348,6 +349,7 @@ endif()
   if (CPP_THREAD_SAFETY_TEST OR CPP_THREAD_SAFETY_GEMV)
     add_subdirectory(cpp_thread_test)
   endif()
+endif()
 
 if (NOT FIXED_LIBNAME)
 set_target_properties(${OpenBLAS_LIBS} PROPERTIES