void cxxflags(B_Cmd *cmd)
{
  b_cmd_append(cmd, "-Wall", "-Wextra");
  b_cmd_append(cmd, "-Wno-string-plus-int", "-Wno-nullability-completeness", "-Wno-unused-function", "-Wno-missing-field-initializers", "-Wno-unused-parameter", "-Wno-unused-variable");

  debug_or_release(cmd);

  b_cmd_append(cmd, "-march=native");
  b_cmd_append(cmd, "-fno-math-errno", "-funroll-loops");
  b_cmd_append(cmd, "-flto", "-pthread");

  inlcude_dirs(cmd);
  //b_cmd_append(cmd, "-O3");
}

void cxx(B_Cmd *cmd)
{
  b_cmd_append(cmd, "clang");
  cxxflags(cmd);
}