On 2014-11-13 7:49 AM, lvqcl wrote: > I found that getopt.c and getopt1.c files contain 0x0c character > aka "form feed" aka '\f'. What's the purpose of them? GNU code (or emacs?) sometimes uses ^L as a page break. It's reasonable to remove them. The compiler treats them as whitespace, so it's only an issue of formatting style. -r