time: Fix test failure on AIX 7.2.

* m4/time.m4 (gl_FUNC_TIME): Guess that it does not work on AIX.
* doc/posix-functions/time.texi: Mention the bug on AIX.

1 files changed, 4 insertions, 4 deletions

diff --git a/doc/posix-functions/time.texi b/doc/posix-functions/time.texi
index 5d7c719594..c744c63974 100644
--- a/doc/posix-functions/time.texi
+++ b/doc/posix-functions/time.texi
@@ -12,10 +12,10 @@ Portability problems fixed by Gnulib:
 This function is not consistent with @code{gettimeofday} and @code{timespec_get}
 on some platforms:
 @c https://sourceware.org/bugzilla/show_bug.cgi?id=30200
-glibc 2.31 or newer on Linux, native Windows.
-Namely, in the first 1 to 2.5 milliseconds of every second (or, on Windows,
-in the first 5 milliseconds of every second), @code{time} returns a value
-that is one less than the @code{tv_sec} part of the return value of
+glibc 2.31 or newer on Linux, AIX 7.2, native Windows.
+Namely, in the first 1 to 2.5 milliseconds of every second (or, on AIX and
+Windows, in the first 5 milliseconds of every second), @code{time} returns
+a value that is one less than the @code{tv_sec} part of the return value of
 @code{gettimeofday} or @code{timespec_get}.
 @end itemize