Avoid useless in this branch warning

Author: AlexPeshkoff

builds/posix/prefix.linux_amd64

@@ -20,7 +20,8 @@
 
 COMMON_FLAGS=-ggdb -DFB_SEND_FLAGS=MSG_NOSIGNAL -DLINUX -DAMD64 -pipe -MMD -fPIC -fmessage-length=0
 OPTIMIZE_FLAGS=-O3 -fno-omit-frame-pointer
-WARN_FLAGS=-Wall -Wno-switch -Wno-parentheses -Wno-unknown-pragmas -Wno-unused-variable -Wno-narrowing -Wno-unused-local-typedefs
+WARN_FLAGS=-Wall -Wno-switch -Wno-parentheses -Wno-unknown-pragmas -Wno-unused-variable -Wno-narrowing \
+	-Wno-unused-local-typedefs -Wno-template-id-cdtor
 PLATFORM_PLUSPLUS_FLAGS=-Wno-invalid-offsetof -Wno-class-memaccess
 
 PROD_FLAGS=$(COMMON_FLAGS) $(OPTIMIZE_FLAGS)