diff --git a/cmake/external_libs/protobuf_shared.cmake b/cmake/external_libs/protobuf_shared.cmake
index 8fbc35e..3a84bc3 100755
--- a/cmake/external_libs/protobuf_shared.cmake
+++ b/cmake/external_libs/protobuf_shared.cmake
@@ -11,7 +11,7 @@ if ((${CMAKE_INSTALL_PREFIX} STREQUAL /usr/local) OR
     message(STATUS "No install prefix selected, default to ${CMAKE_INSTALL_PREFIX}.")
 endif()
 
-set(protobuf_CXXFLAGS "-Wno-maybe-uninitialized -Wno-unused-parameter -fPIC -fstack-protector-all -D_FORTIFY_SOURCE=2 $<$<STREQUAL:${PRODUCT_SIDE},host>:-D_GLIBCXX_USE_CXX11_ABI=0> -O2")
+set(protobuf_CXXFLAGS "-Wno-maybe-uninitialized -Wno-unused-parameter -fPIC -fstack-protector-all -D_FORTIFY_SOURCE=2 -D_GLIBCXX_USE_CXX11_ABI=0 -O2")
 set(protobuf_LDFLAGS "-Wl,-z,relro,-z,now,-z,noexecstack")
 ExternalProject_Add(protobuf_build
                     URL https://github.com/protocolbuffers/protobuf/archive/v3.8.0.tar.gz
diff --git a/cmake/external_libs/protobuf_static.cmake b/cmake/external_libs/protobuf_static.cmake
index 0cf6894..e5d296b 100755
--- a/cmake/external_libs/protobuf_static.cmake
+++ b/cmake/external_libs/protobuf_static.cmake
@@ -8,7 +8,7 @@ if ((${CMAKE_INSTALL_PREFIX} STREQUAL /usr/local) OR
     message(STATUS "No install prefix selected, default to ${CMAKE_INSTALL_PREFIX}.")
 endif()
 
-set(protobuf_CXXFLAGS "-Wno-maybe-uninitialized -Wno-unused-parameter -fPIC -fstack-protector-all -D_FORTIFY_SOURCE=2 $<$<STREQUAL:${PRODUCT_SIDE},host>:-D_GLIBCXX_USE_CXX11_ABI=0> -O2")
+set(protobuf_CXXFLAGS "-Wno-maybe-uninitialized -Wno-unused-parameter -fPIC -fstack-protector-all -D_FORTIFY_SOURCE=2 -D_GLIBCXX_USE_CXX11_ABI=0 -O2")
 set(protobuf_LDFLAGS "-Wl,-z,relro,-z,now,-z,noexecstack")
 set(PROTOBUF_STATIC_PKG_DIR ${CMAKE_INSTALL_PREFIX}/protobuf_static)
 ExternalProject_Add(protobuf_static_build