Merge from gnulib

This incorporates:
2017-01-09 maint: time stamp -> timestamp
2017-01-07 stdioext: Port to Minix 3.2 and newer
2017-01-06 glob, intprops, xalloc: work around Clang bug
2017-01-02 revert copyright-year change to synced files
* doc/misc/texinfo.tex, lib/fpending.c, lib/intprops.h, lib/mktime.c:
* lib/stat-time.h, lib/stdio-impl.h, lib/time.in.h, lib/timespec.h:
* lib/utimens.c, lib/xalloc-oversized.h:
Copy from gnulib.

1 files changed, 2 insertions, 10 deletions

diff --git a/lib/xalloc-oversized.h b/lib/xalloc-oversized.h
index 6b4e68b7c0e..ff0efc6ba40 100644
--- a/lib/xalloc-oversized.h
+++ b/lib/xalloc-oversized.h
@@ -21,11 +21,6 @@
 #include <stddef.h>
 #include <stdint.h>
 
-/* Default for (non-Clang) compilers that lack __has_builtin.  */
-#ifndef __has_builtin
-# define __has_builtin(x) 0
-#endif
-
 /* True if N * S would overflow in a size_t calculation,
    or would generate a value larger than PTRDIFF_MAX.
    This expands to a constant expression if N and S are both constants.
@@ -46,13 +41,10 @@ typedef size_t __xalloc_count_type;
    positive and N must be nonnegative.  This is a macro, not a
    function, so that it works correctly even when SIZE_MAX < N.  */
 
-#if 7 <= __GNUC__ || __has_builtin (__builtin_add_overflow_p)
+#if 7 <= __GNUC__
 # define xalloc_oversized(n, s) \
    __builtin_mul_overflow_p (n, s, (__xalloc_count_type) 1)
-#elif ((5 <= __GNUC__ \
-        || (__has_builtin (__builtin_mul_overflow) \
-            && __has_builtin (__builtin_constant_p))) \
-       && !__STRICT_ANSI__)
+#elif 5 <= __GNUC__ && !__STRICT_ANSI__
 # define xalloc_oversized(n, s) \
    (__builtin_constant_p (n) && __builtin_constant_p (s) \
     ? __xalloc_oversized (n, s) \