--- /dev/null
+--- dmd2/src/dmd/posix.mak.orig 2016-03-03 11:42:12.000000000 +0100
++++ dmd2/src/dmd/posix.mak 2016-03-13 08:59:49.245630206 +0100
+@@ -126,6 +126,7 @@
+
+ # Default compiler flags for all source files
+ CFLAGS := $(WARNINGS) \
++ $(CXXOPTFLAGS) \
+ -fno-exceptions -fno-rtti \
+ -D__pascal= -DMARS=1 -DTARGET_$(OS_UPCASE)=1 -DDM_TARGET_CPU_$(TARGET_CPU)=1 \
+ $(MODEL_FLAG)