Secure, optimizing build options

build/BUILD

@@ -0,0 +1,22 @@
+package(default_visibility = ["//visibility:public"])
+
+exports_files(["CROSSTOOL"])
+
+filegroup(
+  name = "empty",
+  srcs = [],
+)
+
+cc_toolchain(
+  name = "cc-compiler-local",
+  all_files = ":empty",
+  compiler_files = ":empty",
+  cpu = "local",
+  dwp_files = ":empty",
+  dynamic_runtime_libs = [":empty"],
+  linker_files = ":empty",
+  objcopy_files = ":empty",
+  static_runtime_libs = [":empty"],
+  strip_files = ":empty",
+  supports_param_files = 1,
+)