Merge from gnulib

This gets Emacs working again with HP-UX Itanium cc.
It incorporates:
2017-03-19 stdalign: tweak version# and test for HP-UX IA64
2017-03-18 stdalign: restore previous behavior for HP-UX IA64
2017-03-17 stat-time, timespec: Support header files in C++ mode
2017-03-17 stdalign: Make it work with HP-UX cc
2017-03-17 flexmember: try to detect HP-UX 11.31 cc bug
2017-03-16 stdint: Fix test compilation failure with HP-UX 11 cc.
2017-03-14 gnulib-tool: don't produce tests with only snippets
2017-03-14 limits-h: Make it work with HP-UX cc.
* etc/PROBLEMS: Remove now-obsolete entry for HP-UX 11.31.
* lib/gnulib.mk.in, m4/gnulib-comp.m4: Regenerate.
* lib/limits.in.h, lib/stat-time.h, lib/stdalign.in.h:
* lib/stdint.in.h, lib/timespec.h, m4/flexmember.m4, m4/stdalign.m4:
Copy from gnulib.

3 files changed, 7 insertions, 11 deletions

diff --git a/m4/flexmember.m4 b/m4/flexmember.m4
index 35580ac27c4..9d3b50d1575 100644
--- a/m4/flexmember.m4
+++ b/m4/flexmember.m4
@@ -1,4 +1,4 @@
-# serial 4
+# serial 5
 # Check for flexible array member support.
 
 # Copyright (C) 2006, 2009-2017 Free Software Foundation, Inc.
@@ -17,12 +17,15 @@ AC_DEFUN([AC_C_FLEXIBLE_ARRAY_MEMBER],
           [[#include <stdlib.h>
             #include <stdio.h>
             #include <stddef.h>
-            struct s { int n; double d[]; };]],
+            struct m { struct m *next, **list; char name[]; };
+            struct s { struct s *p; struct m *m; int n; double d[]; };]],
           [[int m = getchar ();
             size_t nbytes = offsetof (struct s, d) + m * sizeof (double);
             nbytes += sizeof (struct s) - 1;
             nbytes -= nbytes % sizeof (struct s);
             struct s *p = malloc (nbytes);
+            p->p = p;
+            p->m = NULL;
             p->d[0] = 0.0;
             return p->d != (double *) NULL;]])],
        [ac_cv_c_flexmember=yes],
diff --git a/m4/gnulib-comp.m4 b/m4/gnulib-comp.m4
index bf7afa51bf6..e613490f1a4 100644
--- a/m4/gnulib-comp.m4
+++ b/m4/gnulib-comp.m4
@@ -787,8 +787,6 @@ changequote([, ])dnl
   AC_SUBST([LIBGNU_LIBDEPS])
   LIBGNU_LTLIBDEPS="$gl_ltlibdeps"
   AC_SUBST([LIBGNU_LTLIBDEPS])
-  LIBTESTS_LIBDEPS="$gltests_libdeps"
-  AC_SUBST([LIBTESTS_LIBDEPS])
 ])
 
 # Like AC_LIBOBJ, except that the module name goes
@@ -1106,9 +1104,4 @@ AC_DEFUN([gl_FILE_LIST], [
   m4/warnings.m4
   m4/wchar_t.m4
   m4/wint_t.m4
-  tests=lib/_Noreturn.h
-  tests=lib/arg-nonnull.h
-  tests=lib/c++defs.h
-  tests=lib/dummy.c
-  tests=lib/warn-on-use.h
 ])
diff --git a/m4/stdalign.m4 b/m4/stdalign.m4
index 3a1265824e5..0652a1e4af5 100644
--- a/m4/stdalign.m4
+++ b/m4/stdalign.m4
@@ -35,8 +35,8 @@ AC_DEFUN([gl_STDALIGN_H],
                  || (defined __APPLE__ && defined __MACH__ \
                      ? 4 < __GNUC__ + (1 <= __GNUC_MINOR__) \
                      : __GNUC__) \
-                 || __HP_cc || __HP_aCC || __IBMC__ || __IBMCPP__ \
-                 || __ICC || 0x5110 <= __SUNPRO_C \
+                 || (__ia64 && (61200 <= __HP_cc || 61200 <= __HP_aCC)) \
+                 || __ICC || 0x590 <= __SUNPRO_C || 0x0600 <= __xlC__ \
                  || 1300 <= _MSC_VER)
               struct alignas_test { char c; char alignas (8) alignas_8; };
               char test_alignas[offsetof (struct alignas_test, alignas_8) == 8