#BUILD_SHUTDOWN=no
#SANITIZEOPTS=-fsanitize=address,undefined
-# MacOS: use Linux settings, but don't build shutdown:
+# MacOS: use g++ (which may alias clang++):
+#CXX=g++
+#CXXOPTS=-std=c++11 -Os -Wall -fno-rtti -flto
+#LDFLAGS=-flto
#BUILD_SHUTDOWN=no
+#SANITIZEOPTS=-fsanitize=address,undefined