diff --git a/submodules/build/iphone-config.site b/submodules/build/iphone-config.site
index 2c070168e..a81401077 100644
--- a/submodules/build/iphone-config.site
+++ b/submodules/build/iphone-config.site
@@ -43,6 +43,10 @@ for SYSROOT_PATH in $SDK_PATH_LIST ; do echo $SYSROOT_PATH ; done ;
 echo "Selecting SDK path = ${SYSROOT_PATH}"
 
 COMMON_FLAGS=" -arch ${ARCH} ${MCPU} -isysroot ${SYSROOT_PATH} -${CLANG_TARGET_SPECIFIER}=${SDK_VERSION} -DTARGET_OS_IPHONE=1 -D__IOS -fms-extensions"
+
+# silence clang unused operators. This is temporary, we should find a way to compile 3rd party with correct flags :(
+COMMON_FLAGS="-Qunused-arguments -Wno-unused-command-line-argument-hard-error-in-future $COMMON_FLAGS"
+
 CC="xcrun clang -std=c99 $COMMON_FLAGS"
 OBJC="xcrun clang -std=c99 $COMMON_FLAGS"
 CXX="xcrun clang++ $COMMON_FLAGS"