At least under Wine they are not recognized and you just see literal "[0m" etc appearing in the output.
Updates: commit 5a011e02375912f2ad88de1ebc6d609e29d38f71 Reviewed-by: Laszlo Ersek <ler...@redhat.com> --- server/debug.c | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/server/debug.c b/server/debug.c index 1b5ddaafe..2231d40a0 100644 --- a/server/debug.c +++ b/server/debug.c @@ -70,7 +70,9 @@ static void debug_common (bool in_server, const char *fs, va_list args) { int err = errno; +#ifndef WIN32 int tty; +#endif CLEANUP_FREE char *str = NULL; size_t len = 0; FILE *fp; @@ -88,15 +90,19 @@ debug_common (bool in_server, const char *fs, va_list args) return; } +#ifndef WIN32 tty = isatty (fileno (stderr)); if (!in_server && tty) ansi_force_colour (ANSI_FG_BOLD_BLACK, fp); +#endif prologue (fp); errno = err; vfprintf (fp, fs, args); +#ifndef WIN32 if (!in_server && tty) ansi_force_restore (fp); +#endif fprintf (fp, "\n"); close_memstream (fp); -- 2.39.2 _______________________________________________ Libguestfs mailing list Libguestfs@redhat.com https://listman.redhat.com/mailman/listinfo/libguestfs