POSIX specification: @url{http://www.opengroup.org/susv3xsh/usleep.html}
-Gnulib module: ---
+Gnulib module: usleep
Portability problems fixed by Gnulib:
@itemize
+@item
+On some systems, @code{usleep} rejects attempts to sleep longer than 1
+second, as allowed by POSIX:
+mingw.
+@item
+This function is missing on some platforms. However, the replacement
+is designed to be lightweight, and may round to the neareset second;
+use @code{select} or @code{nanosleep} if better resolution is needed:
+IRIX 5.3, Solaris 2.4, older mingw, BeOS.
@end itemize
Portability problems not fixed by Gnulib:
@itemize
@item
-This function is missing on some platforms:
-IRIX 5.3, Solaris 2.4, older mingw, BeOS.
-@item
According to POSIX, the @code{usleep} function may interfere with the program's
use of the @code{SIGALRM} signal. On Linux, it doesn't; on other platforms,
it may.
-@item
-On some systems, @code{usleep} rejects attempts to sleep longer than 1
-second, as allowed by POSIX:
-mingw.
@end itemize