компилировать стандартные программы на C (compile standard C programs)
Стандартный вывод (Stdout)
If more than one pathname operand ending in .c (or possibly other
unspecified suffixes) is given, for each such file:
"%s:\n", <pathname>
may be written. These messages, if written, shall precede the
processing of each input file; they shall not be written to the
standard output if they are written to the standard error, as
described in the STDERR section.
If the -E option is specified, the standard output shall be a
text file that represents the results of the preprocessing stage
of the language; it may contain extra information appropriate for
subsequent compilation passes.
