Add build_gtest cmake option

Author: bgao-onet

CMakeLists.txt

@@ -11,6 +11,7 @@ endif()
 
 option(CPPBASE_BUILD_TESTING "Build unit tests" ${CPPBASE_STANDALONE_PROJECT})
 option(GLIBCXX_USE_CXX11_ABI "Set -D_GLIBCXX_USE_CXX11_ABI=1" OFF)
+option(CPPBASE_BUILD_GTEST "Build google test" ON)
 
 # set(CMAKE_INCLUDE_CURRENT_DIR ON) # this causes capnproto build to fail
 set(CMAKE_CXX_STANDARD_REQUIRED ON)

thirdparty/CMakeLists.txt

@@ -78,6 +78,7 @@ add_subdirectory(${fmt_SOURCE_DIR} ${fmt_BINARY_DIR})
 #                        googletest
 # ============================================================
 #
+if(CPPBASE_BUILD_GTEST)
 message("==> Configuring googletest")
 set(BUILD_SHARED_LIBS ON CACHE BOOL "")
 set(INSTALL_GMOCK OFF CACHE BOOL "")
@@ -91,6 +92,7 @@ download_project(
   QUIET
 )
 add_subdirectory(${googletest_SOURCE_DIR} ${googletest_BINARY_DIR})
+endif()
 
 # ============================================================
 #                        rapidjson