2 @subsection @code{getopt_long}
5 Gnulib module: getopt-gnu
7 Portability problems fixed by Gnulib:
10 The function @code{getopt_long} does not support the @samp{+} flag in
11 the options string on some platforms:
12 MacOS X 10.5, AIX 5.2, OSF/1 5.1, Solaris 10.
14 The value of @code{optind} after a missing required argument is wrong
18 The function @code{getopt_long} does not obey the @samp{-} flag in the
19 options string when @env{POSIXLY_CORRECT} is set on some platforms:
22 Some implementations fail to reset state, including re-checking
23 @env{POSIXLY_CORRECT}, when @code{optind} is set to @samp{0}:
26 The function @code{getopt_long} does not support options with optional
27 arguments on some platforms:
28 MacOS X 10.5, OpenBSD 4.0, AIX 5.2, IRIX 6.5, Solaris 10, Cygwin 1.5.x.
30 This function is missing on some platforms:
31 AIX 5.1, HP-UX 11, IRIX 6.5, OSF/1 5.1, Interix 3.5.
34 Portability problems not fixed by Gnulib:
37 The glibc extension of using @samp{W;} in the optstring argument to
38 allow @code{-W foo} to behave synonymously with @code{--foo} is not
39 very reliable, even in glibc.
41 Mixing a leading @samp{-} or @samp{+} with a leading @samp{:} in the
42 optstring argument has inconsistent effects across platforms.