Extend port compiler default env for Darwin 11 32-bit

src/rebar_port_compiler.erl

@@ -399,7 +399,12 @@ default_env() ->
      %% OS X Snow Leopard flags for 32-bit
      {"darwin10.*-32", "CFLAGS", "-m32 $CFLAGS"},
      {"darwin10.*-32", "CXXFLAGS", "-m32 $CXXFLAGS"},
-     {"darwin10.*-32", "LDFLAGS", "-arch i386 $LDFLAGS"}
+     {"darwin10.*-32", "LDFLAGS", "-arch i386 $LDFLAGS"},
+
+     %% OS X Lion flags for 32-bit
+     {"darwin11.*-32", "CFLAGS", "-m32 $CFLAGS"},
+     {"darwin11.*-32", "CXXFLAGS", "-m32 $CXXFLAGS"},
+     {"darwin11.*-32", "LDFLAGS", "-arch i386 $LDFLAGS"}
     ].