thrd: New module.

* lib/thrd.c: New file.
* m4/thrd.m4: New file.
* modules/thrd: New file.
* doc/posix-functions/thrd_current.texi: Mention the new module.
* doc/posix-functions/thrd_detach.texi: Likewise.
* doc/posix-functions/thrd_equal.texi: Likewise.
* doc/posix-functions/thrd_exit.texi: Likewise.
* doc/posix-functions/thrd_sleep.texi: Likewise.
* doc/posix-functions/thrd_yield.texi: Likewise.
* doc/posix-functions/thrd_create.texi: Mention the new module and the
AIX bug.
* doc/posix-functions/thrd_join.texi: Mention the new module and the
AIX and Solaris bugs.

8 files changed, 41 insertions, 32 deletions

diff --git a/doc/posix-functions/thrd_create.texi b/doc/posix-functions/thrd_create.texi
index eb3fd5049b..9fe35f489c 100644
--- a/doc/posix-functions/thrd_create.texi
+++ b/doc/posix-functions/thrd_create.texi
@@ -10,15 +10,18 @@ Documentation:@*
 @url{https://www.gnu.org/software/libc/manual/html_node/ISO-C-Thread-Management.html}.
 @end ifnotinfo
 
-Gnulib module: ---
+Gnulib module: thrd
 
 Portability problems fixed by Gnulib:
 @itemize
+@item
+This function is missing on many platforms:
+glibc 2.27, Mac OS X 10.5, FreeBSD 9.3, NetBSD 5.0, OpenBSD 3.8, Minix 3.1.8, AIX 7.1, HP-UX 11.31, IRIX 6.5, OSF/1 5.1, Solaris 11.3, Cygwin, mingw, MSVC 14, Interix 3.5, BeOS, Android 9.0.
+@item
+This function uses an incorrectly defined @code{thrd_start_t} on some platforms:
+AIX 7.2.
 @end itemize
 
 Portability problems not fixed by Gnulib:
 @itemize
-@item
-This function is missing on many platforms:
-glibc 2.27, Mac OS X 10.5, FreeBSD 9.3, NetBSD 5.0, OpenBSD 3.8, Minix 3.1.8, AIX 7.1, HP-UX 11.31, IRIX 6.5, OSF/1 5.1, Solaris 11.3, Cygwin, mingw, MSVC 14, Interix 3.5, BeOS, Android 9.0.
 @end itemize
diff --git a/doc/posix-functions/thrd_current.texi b/doc/posix-functions/thrd_current.texi
index 03f33a5d7e..ea81185313 100644
--- a/doc/posix-functions/thrd_current.texi
+++ b/doc/posix-functions/thrd_current.texi
@@ -10,15 +10,15 @@ Documentation:@*
 @url{https://www.gnu.org/software/libc/manual/html_node/ISO-C-Thread-Management.html}.
 @end ifnotinfo
 
-Gnulib module: ---
+Gnulib module: thrd
 
 Portability problems fixed by Gnulib:
 @itemize
+@item
+This function is missing on many platforms:
+glibc 2.27, Mac OS X 10.5, FreeBSD 9.3, NetBSD 5.0, OpenBSD 3.8, Minix 3.1.8, AIX 7.1, HP-UX 11.31, IRIX 6.5, OSF/1 5.1, Solaris 11.3, Cygwin, mingw, MSVC 14, Interix 3.5, BeOS, Android 9.0.
 @end itemize
 
 Portability problems not fixed by Gnulib:
 @itemize
-@item
-This function is missing on many platforms:
-glibc 2.27, Mac OS X 10.5, FreeBSD 9.3, NetBSD 5.0, OpenBSD 3.8, Minix 3.1.8, AIX 7.1, HP-UX 11.31, IRIX 6.5, OSF/1 5.1, Solaris 11.3, Cygwin, mingw, MSVC 14, Interix 3.5, BeOS, Android 9.0.
 @end itemize
diff --git a/doc/posix-functions/thrd_detach.texi b/doc/posix-functions/thrd_detach.texi
index 3cfb318167..bb8f6c316a 100644
--- a/doc/posix-functions/thrd_detach.texi
+++ b/doc/posix-functions/thrd_detach.texi
@@ -10,15 +10,15 @@ Documentation:@*
 @url{https://www.gnu.org/software/libc/manual/html_node/ISO-C-Thread-Management.html}.
 @end ifnotinfo
 
-Gnulib module: ---
+Gnulib module: thrd
 
 Portability problems fixed by Gnulib:
 @itemize
+@item
+This function is missing on many platforms:
+glibc 2.27, Mac OS X 10.5, FreeBSD 9.3, NetBSD 5.0, OpenBSD 3.8, Minix 3.1.8, AIX 7.1, HP-UX 11.31, IRIX 6.5, OSF/1 5.1, Solaris 11.3, Cygwin, mingw, MSVC 14, Interix 3.5, BeOS, Android 9.0.
 @end itemize
 
 Portability problems not fixed by Gnulib:
 @itemize
-@item
-This function is missing on many platforms:
-glibc 2.27, Mac OS X 10.5, FreeBSD 9.3, NetBSD 5.0, OpenBSD 3.8, Minix 3.1.8, AIX 7.1, HP-UX 11.31, IRIX 6.5, OSF/1 5.1, Solaris 11.3, Cygwin, mingw, MSVC 14, Interix 3.5, BeOS, Android 9.0.
 @end itemize
diff --git a/doc/posix-functions/thrd_equal.texi b/doc/posix-functions/thrd_equal.texi
index 58f5a02377..185550244c 100644
--- a/doc/posix-functions/thrd_equal.texi
+++ b/doc/posix-functions/thrd_equal.texi
@@ -10,15 +10,15 @@ Documentation:@*
 @url{https://www.gnu.org/software/libc/manual/html_node/ISO-C-Thread-Management.html}.
 @end ifnotinfo
 
-Gnulib module: ---
+Gnulib module: thrd
 
 Portability problems fixed by Gnulib:
 @itemize
+@item
+This function is missing on many platforms:
+glibc 2.27, Mac OS X 10.5, FreeBSD 9.3, NetBSD 5.0, OpenBSD 3.8, Minix 3.1.8, AIX 7.1, HP-UX 11.31, IRIX 6.5, OSF/1 5.1, Solaris 11.3, Cygwin, mingw, MSVC 14, Interix 3.5, BeOS, Android 9.0.
 @end itemize
 
 Portability problems not fixed by Gnulib:
 @itemize
-@item
-This function is missing on many platforms:
-glibc 2.27, Mac OS X 10.5, FreeBSD 9.3, NetBSD 5.0, OpenBSD 3.8, Minix 3.1.8, AIX 7.1, HP-UX 11.31, IRIX 6.5, OSF/1 5.1, Solaris 11.3, Cygwin, mingw, MSVC 14, Interix 3.5, BeOS, Android 9.0.
 @end itemize
diff --git a/doc/posix-functions/thrd_exit.texi b/doc/posix-functions/thrd_exit.texi
index a2683b6a7d..75ae888936 100644
--- a/doc/posix-functions/thrd_exit.texi
+++ b/doc/posix-functions/thrd_exit.texi
@@ -10,15 +10,15 @@ Documentation:@*
 @url{https://www.gnu.org/software/libc/manual/html_node/ISO-C-Thread-Management.html}.
 @end ifnotinfo
 
-Gnulib module: ---
+Gnulib module: thrd
 
 Portability problems fixed by Gnulib:
 @itemize
+@item
+This function is missing on many platforms:
+glibc 2.27, Mac OS X 10.5, FreeBSD 9.3, NetBSD 5.0, OpenBSD 3.8, Minix 3.1.8, AIX 7.1, HP-UX 11.31, IRIX 6.5, OSF/1 5.1, Solaris 11.3, Cygwin, mingw, MSVC 14, Interix 3.5, BeOS, Android 9.0.
 @end itemize
 
 Portability problems not fixed by Gnulib:
 @itemize
-@item
-This function is missing on many platforms:
-glibc 2.27, Mac OS X 10.5, FreeBSD 9.3, NetBSD 5.0, OpenBSD 3.8, Minix 3.1.8, AIX 7.1, HP-UX 11.31, IRIX 6.5, OSF/1 5.1, Solaris 11.3, Cygwin, mingw, MSVC 14, Interix 3.5, BeOS, Android 9.0.
 @end itemize
diff --git a/doc/posix-functions/thrd_join.texi b/doc/posix-functions/thrd_join.texi
index 2199a8f110..51b2ec9df3 100644
--- a/doc/posix-functions/thrd_join.texi
+++ b/doc/posix-functions/thrd_join.texi
@@ -10,15 +10,21 @@ Documentation:@*
 @url{https://www.gnu.org/software/libc/manual/html_node/ISO-C-Thread-Management.html}.
 @end ifnotinfo
 
-Gnulib module: ---
+Gnulib module: thrd
 
 Portability problems fixed by Gnulib:
 @itemize
+@item
+This function is missing on many platforms:
+glibc 2.27, Mac OS X 10.5, FreeBSD 9.3, NetBSD 5.0, OpenBSD 3.8, Minix 3.1.8, AIX 7.1, HP-UX 11.31, IRIX 6.5, OSF/1 5.1, Solaris 11.3, Cygwin, mingw, MSVC 14, Interix 3.5, BeOS, Android 9.0.
+@item
+This function never stores an exit code on some platforms:
+AIX 7.2.
+@item
+This function crashes when the second argument is NULL on some platforms:
+Solaris 11.4.
 @end itemize
 
 Portability problems not fixed by Gnulib:
 @itemize
-@item
-This function is missing on many platforms:
-glibc 2.27, Mac OS X 10.5, FreeBSD 9.3, NetBSD 5.0, OpenBSD 3.8, Minix 3.1.8, AIX 7.1, HP-UX 11.31, IRIX 6.5, OSF/1 5.1, Solaris 11.3, Cygwin, mingw, MSVC 14, Interix 3.5, BeOS, Android 9.0.
 @end itemize
diff --git a/doc/posix-functions/thrd_sleep.texi b/doc/posix-functions/thrd_sleep.texi
index afdb3ea6a1..5e02eb1e4e 100644
--- a/doc/posix-functions/thrd_sleep.texi
+++ b/doc/posix-functions/thrd_sleep.texi
@@ -10,15 +10,15 @@ Documentation:@*
 @url{https://www.gnu.org/software/libc/manual/html_node/ISO-C-Thread-Management.html}.
 @end ifnotinfo
 
-Gnulib module: ---
+Gnulib module: thrd
 
 Portability problems fixed by Gnulib:
 @itemize
+@item
+This function is missing on many platforms:
+glibc 2.27, Mac OS X 10.5, FreeBSD 9.3, NetBSD 5.0, OpenBSD 3.8, Minix 3.1.8, AIX 7.1, HP-UX 11.31, IRIX 6.5, OSF/1 5.1, Solaris 11.3, Cygwin, mingw, MSVC 14, Interix 3.5, BeOS, Android 9.0.
 @end itemize
 
 Portability problems not fixed by Gnulib:
 @itemize
-@item
-This function is missing on many platforms:
-glibc 2.27, Mac OS X 10.5, FreeBSD 9.3, NetBSD 5.0, OpenBSD 3.8, Minix 3.1.8, AIX 7.1, HP-UX 11.31, IRIX 6.5, OSF/1 5.1, Solaris 11.3, Cygwin, mingw, MSVC 14, Interix 3.5, BeOS, Android 9.0.
 @end itemize
diff --git a/doc/posix-functions/thrd_yield.texi b/doc/posix-functions/thrd_yield.texi
index a787a69708..dde2a718e8 100644
--- a/doc/posix-functions/thrd_yield.texi
+++ b/doc/posix-functions/thrd_yield.texi
@@ -10,15 +10,15 @@ Documentation:@*
 @url{https://www.gnu.org/software/libc/manual/html_node/ISO-C-Thread-Management.html}.
 @end ifnotinfo
 
-Gnulib module: ---
+Gnulib module: thrd
 
 Portability problems fixed by Gnulib:
 @itemize
+@item
+This function is missing on many platforms:
+glibc 2.27, Mac OS X 10.5, FreeBSD 9.3, NetBSD 5.0, OpenBSD 3.8, Minix 3.1.8, AIX 7.1, HP-UX 11.31, IRIX 6.5, OSF/1 5.1, Solaris 11.3, Cygwin, mingw, MSVC 14, Interix 3.5, BeOS, Android 9.0.
 @end itemize
 
 Portability problems not fixed by Gnulib:
 @itemize
-@item
-This function is missing on many platforms:
-glibc 2.27, Mac OS X 10.5, FreeBSD 9.3, NetBSD 5.0, OpenBSD 3.8, Minix 3.1.8, AIX 7.1, HP-UX 11.31, IRIX 6.5, OSF/1 5.1, Solaris 11.3, Cygwin, mingw, MSVC 14, Interix 3.5, BeOS, Android 9.0.
 @end itemize