WARN1
WARN1("Expecting a single word after #ifdef "
WARN1("Expecting a single word after #ifndef "
WARN1("Unterminated include expecting '%c'", a);
WARN1("Expecting a single word after #undef "
WARN1("Warning: %s", walk);
WARN1("Error: %s", walk);
WARN1("Undefined pre-processor command \"#%s\"", line);
WARN1("Ignored: \"%s\"", buf);
WARN1("got \"%s\"", pp);