Update from gnulib

This incorporates:
2016-09-15 stdint: support new _WIDTH macros
2016-09-15 limits-h: new module
2016-09-15 sys_types: avoid glibc 2.25 warnings about major()
2016-09-15 extensions: port to more ISO C TSes
2016-09-13 intprops: new macro TYPE_WIDTH
2016-09-13 extensions: port to recent ISO C TRs
* .gitignore: Add lib/limits.h.
* doc/misc/texinfo.tex, lib/ftoastr.h, lib/intprops.h:
* lib/stdint.in.h, m4/extensions.m4, m4/stdint.m4, m4/stdio_h.m4:
* m4/sys_types_h.m4: Copy from gnulib.
* lib/gnulib.mk, m4/gnulib-comp.m4: Regenerate.
* lib/limits.in.h, m4/limits-h.m4: New files, copie from gnulib.
* nt/gnulib.mk: Merge changes from lib/gnulib.mk.

1 files changed, 32 insertions, 16 deletions

diff --git a/m4/stdint.m4 b/m4/stdint.m4
index 0b4b9060dbb..52f7814ef84 100644
--- a/m4/stdint.m4
+++ b/m4/stdint.m4
@@ -1,4 +1,4 @@
-# stdint.m4 serial 44
+# stdint.m4 serial 45
 dnl Copyright (C) 2001-2016 Free Software Foundation, Inc.
 dnl This file is free software; the Free Software Foundation
 dnl gives unlimited permission to copy and/or distribute it,
@@ -11,6 +11,8 @@ AC_DEFUN_ONCE([gl_STDINT_H],
 [
   AC_PREREQ([2.59])dnl
 
+  AC_REQUIRE([gl_LIMITS_H])
+
   dnl Check for long long int and unsigned long long int.
   AC_REQUIRE([AC_TYPE_LONG_LONG_INT])
   if test $ac_cv_type_long_long_int = yes; then
@@ -282,14 +284,20 @@ static const char *macro_values[] =
          ])
       ])
   fi
+
+  HAVE_C99_STDINT_H=0
+  HAVE_SYS_BITYPES_H=0
+  HAVE_SYS_INTTYPES_H=0
+  STDINT_H=stdint.h
   if test "$gl_cv_header_working_stdint_h" = yes; then
+    HAVE_C99_STDINT_H=1
     dnl Now see whether the system <stdint.h> works without
     dnl __STDC_CONSTANT_MACROS/__STDC_LIMIT_MACROS defined.
     AC_CACHE_CHECK([whether stdint.h predates C++11],
       [gl_cv_header_stdint_predates_cxx11_h],
       [gl_cv_header_stdint_predates_cxx11_h=yes
        AC_COMPILE_IFELSE([
-         AC_LANG_PROGRAM([[
+         AC_LANG_PROGRAM([[
 #define _GL_JUST_INCLUDE_SYSTEM_STDINT_H 1 /* work if build isn't clean */
 #include <stdint.h>
 ]
@@ -306,27 +314,40 @@ int32_t i32 = INT32_C (0x7fffffff);
       AC_DEFINE([__STDC_LIMIT_MACROS], [1],
                 [Define to 1 if the system <stdint.h> predates C++11.])
     fi
-    STDINT_H=
+    AC_CACHE_CHECK([whether stdint.h has UINTMAX_WIDTH etc.],
+      [gl_cv_header_stdint_width],
+      [gl_cv_header_stdint_width=no
+       AC_COMPILE_IFELSE(
+         [AC_LANG_PROGRAM([[
+            /* Work if build is not clean.  */
+            #define _GL_JUST_INCLUDE_SYSTEM_STDINT_H 1
+            #include <stdint.h>
+            ]gl_STDINT_INCLUDES[
+            int iw = UINTMAX_WIDTH;
+            ]])],
+         [gl_cv_header_stdint_width=yes])])
+    if test "$gl_cv_header_stdint_width" = yes; then
+      STDINT_H=
+    fi
   else
     dnl Check for <sys/inttypes.h>, and for
     dnl <sys/bitypes.h> (used in Linux libc4 >= 4.6.7 and libc5).
     AC_CHECK_HEADERS([sys/inttypes.h sys/bitypes.h])
     if test $ac_cv_header_sys_inttypes_h = yes; then
       HAVE_SYS_INTTYPES_H=1
-    else
-      HAVE_SYS_INTTYPES_H=0
     fi
-    AC_SUBST([HAVE_SYS_INTTYPES_H])
     if test $ac_cv_header_sys_bitypes_h = yes; then
       HAVE_SYS_BITYPES_H=1
-    else
-      HAVE_SYS_BITYPES_H=0
     fi
-    AC_SUBST([HAVE_SYS_BITYPES_H])
-
     gl_STDINT_TYPE_PROPERTIES
-    STDINT_H=stdint.h
   fi
+
+  # The substitute stdint.h needs the substitute limit.h's _GL_INTEGER_WIDTH.
+  test -z "$STDINT_H" || LIMITS_H=limits.h
+
+  AC_SUBST([HAVE_C99_STDINT_H])
+  AC_SUBST([HAVE_SYS_BITYPES_H])
+  AC_SUBST([HAVE_SYS_INTTYPES_H])
   AC_SUBST([STDINT_H])
   AM_CONDITIONAL([GL_GENERATE_STDINT_H], [test -n "$STDINT_H"])
 ])
@@ -504,8 +525,3 @@ dnl Remove this when we can assume autoconf >= 2.61.
 m4_ifdef([AC_COMPUTE_INT], [], [
   AC_DEFUN([AC_COMPUTE_INT], [_AC_COMPUTE_INT([$2],[$1],[$3],[$4])])
 ])
-
-# Hey Emacs!
-# Local Variables:
-# indent-tabs-mode: nil
-# End: