getopt: Update regarding AIX.

[gnulib.git] / doc / posix-functions / getopt.texi

diff --git a/doc/posix-functions/getopt.texi b/doc/posix-functions/getopt.texi
index 85f5289..5ee2d04 100644 (file)
--- a/doc/posix-functions/getopt.texi
+++ b/doc/posix-functions/getopt.texi
@@ -16,6 +16,10 @@ Portability problems fixed by either Gnulib module @code{getopt-posix} or @code{
 The @code{getopt} function keeps some internal state that cannot be explicitly
 reset on some platforms:
 mingw.
+@item
+The value of @code{optind} after a missing required argument is wrong
+on some platforms:
+MacOS 10.5, AIX 7.1.
 @end itemize
 
 Portability problems fixed by Gnulib module @code{getopt-gnu}:
@@ -25,6 +29,10 @@ The function @code{getopt} does not support the @samp{+} flag in the options
 string on some platforms:
 MacOS X 10.5, AIX 5.2, HP-UX 11, IRIX 6.5, OSF/1 5.1, Solaris 10.
 @item
+The function @code{getopt} does not obey the combination of @samp{+}
+and @samp{:} flags in the options string on some platforms:
+glibc 2.11.
+@item
 The function @code{getopt} does not obey the @samp{-} flag in the options
 string when @env{POSIXLY_CORRECT} is set on some platforms:
 Cygwin 1.7.0.
@@ -54,7 +62,9 @@ testsuite.
 @item
 The glibc implementation allows a complete reset of the environment,
 including re-checking for @env{POSIXLY_CORRECT}, by setting
-@code{optind} to 0.  Other implementations provide @code{optreset},
+@code{optind} to 0.  Several BSD implementations provide @code{optreset},
 causing a reset by setting it non-zero, although it does not
-necessarily re-read @env{POSIXLY_CORRECT}.
+necessarily re-read @env{POSIXLY_CORRECT}.  Solaris @code{getopt} does
+not support either reset method, but does not maintain state that
+needs the extra level of reset.
 @end itemize