Update from Gnulib

This incorporates:
2019-02-02 dtoastr, ftoastr, ldtoastr: port to c-strtod changes
2019-02-01 c-strtod, c-strtold: use the bug fixes
2019-01-30 strtold: New module
* doc/misc/texinfo.tex, lib/ftoastr.c, lib/regexec.c, lib/stdlib.in.h:
* m4/stdlib_h.m4:
Copy from Gnulib.
* lib/gnulib.mk.in, m4/gnulib-comp.m4: Regenerate.
* m4/c-strtod.m4: Remove.

3 files changed, 5 insertions, 80 deletions

diff --git a/m4/c-strtod.m4 b/m4/c-strtod.m4
deleted file mode 100644
index 1694a2396c5..00000000000
--- a/m4/c-strtod.m4
+++ /dev/null
@@ -1,76 +0,0 @@
-# c-strtod.m4 serial 16
-
-# Copyright (C) 2004-2006, 2009-2019 Free Software Foundation, Inc.
-# This file is free software; the Free Software Foundation
-# gives unlimited permission to copy and/or distribute it,
-# with or without modifications, as long as this notice is preserved.
-
-# Written by Paul Eggert.
-
-AC_DEFUN([gl_C99_STRTOLD],
-[
-  AC_CACHE_CHECK([whether strtold conforms to C99],
-    [gl_cv_func_c99_strtold],
-    [AC_LINK_IFELSE(
-       [AC_LANG_PROGRAM(
-          [[/* On HP-UX before 11.23, strtold returns a struct instead of
-                long double.  Reject implementations like that, by requiring
-                compatibility with the C99 prototype.  */
-             #include <stdlib.h>
-             static long double (*p) (char const *, char **) = strtold;
-             static long double
-             test (char const *nptr, char **endptr)
-             {
-               long double r;
-               r = strtold (nptr, endptr);
-               return r;
-             }]],
-           [[return test ("1.0", NULL) != 1 || p ("1.0", NULL) != 1;]])],
-       [gl_cv_func_c99_strtold=yes],
-       [gl_cv_func_c99_strtold=no])])
-  if test $gl_cv_func_c99_strtold = yes; then
-    AC_DEFINE([HAVE_C99_STRTOLD], [1], [Define to 1 if strtold conforms to C99.])
-  fi
-])
-
-dnl Prerequisites of lib/c-strtod.c.
-AC_DEFUN([gl_C_STRTOD],
-[
-  AC_REQUIRE([gl_USE_SYSTEM_EXTENSIONS])
-
-  AC_CHECK_HEADERS_ONCE([xlocale.h])
-  dnl We can't use AC_CHECK_FUNC here, because strtod_l() is defined as a
-  dnl static inline function when compiling for Android 7.1 or older.
-  AC_CACHE_CHECK([for strtod_l], [gl_cv_func_strtod_l],
-    [AC_LINK_IFELSE(
-       [AC_LANG_PROGRAM(
-          [[#include <stdlib.h>
-            #include <locale.h>
-            #if HAVE_XLOCALE_H
-            # include <xlocale.h>
-            #endif
-            locale_t loc;
-          ]],
-          [[char *end;
-            return strtod_l("0",&end,loc) < 0.0;
-          ]])
-       ],
-       [gl_cv_func_strtod_l=yes],
-       [gl_cv_func_strtod_l=no])
-    ])
-  if test $gl_cv_func_strtod_l = yes; then
-    HAVE_STRTOD_L=1
-  else
-    HAVE_STRTOD_L=0
-  fi
-  AC_DEFINE_UNQUOTED([HAVE_STRTOD_L], [$HAVE_STRTOD_L],
-    [Define to 1 if the system has the 'strtod_l' function.])
-])
-
-dnl Prerequisites of lib/c-strtold.c.
-AC_DEFUN([gl_C_STRTOLD],
-[
-  AC_REQUIRE([gl_USE_SYSTEM_EXTENSIONS])
-  AC_REQUIRE([gl_C99_STRTOLD])
-  AC_CHECK_FUNCS([strtold_l])
-])
diff --git a/m4/gnulib-comp.m4 b/m4/gnulib-comp.m4
index a432cc8e541..f25a0e40816 100644
--- a/m4/gnulib-comp.m4
+++ b/m4/gnulib-comp.m4
@@ -209,7 +209,6 @@ AC_DEFUN([gl_INIT],
   gl_SHA512
   gl_CHECK_TYPE_STRUCT_DIRENT_D_TYPE
   gl_DIRENT_H
-  AC_REQUIRE([gl_C99_STRTOLD])
   gl_FUNC_DUP2
   if test $HAVE_DUP2 = 0 || test $REPLACE_DUP2 = 1; then
     AC_LIBOBJ([dup2])
@@ -999,7 +998,6 @@ AC_DEFUN([gl_FILE_LIST], [
   m4/alloca.m4
   m4/builtin-expect.m4
   m4/byteswap.m4
-  m4/c-strtod.m4
   m4/clock_time.m4
   m4/close-stream.m4
   m4/count-leading-zeros.m4
diff --git a/m4/stdlib_h.m4 b/m4/stdlib_h.m4
index c5db804e4d6..6121602aea3 100644
--- a/m4/stdlib_h.m4
+++ b/m4/stdlib_h.m4
@@ -1,4 +1,4 @@
-# stdlib_h.m4 serial 47
+# stdlib_h.m4 serial 48
 dnl Copyright (C) 2007-2019 Free Software Foundation, Inc.
 dnl This file is free software; the Free Software Foundation
 dnl gives unlimited permission to copy and/or distribute it,
@@ -26,7 +26,7 @@ AC_DEFUN([gl_STDLIB_H],
     initstate initstate_r mbtowc mkdtemp mkostemp mkostemps mkstemp mkstemps
     posix_openpt ptsname ptsname_r qsort_r random random_r reallocarray
     realpath rpmatch secure_getenv setenv setstate setstate_r srandom
-    srandom_r strtod strtoll strtoull unlockpt unsetenv])
+    srandom_r strtod strtold strtoll strtoull unlockpt unsetenv])
 ])
 
 AC_DEFUN([gl_STDLIB_MODULE_INDICATOR],
@@ -68,6 +68,7 @@ AC_DEFUN([gl_STDLIB_H_DEFAULTS],
   GNULIB_SECURE_GETENV=0; AC_SUBST([GNULIB_SECURE_GETENV])
   GNULIB_SETENV=0;        AC_SUBST([GNULIB_SETENV])
   GNULIB_STRTOD=0;        AC_SUBST([GNULIB_STRTOD])
+  GNULIB_STRTOLD=0;       AC_SUBST([GNULIB_STRTOLD])
   GNULIB_STRTOLL=0;       AC_SUBST([GNULIB_STRTOLL])
   GNULIB_STRTOULL=0;      AC_SUBST([GNULIB_STRTOULL])
   GNULIB_SYSTEM_POSIX=0;  AC_SUBST([GNULIB_SYSTEM_POSIX])
@@ -105,6 +106,7 @@ AC_DEFUN([gl_STDLIB_H_DEFAULTS],
   HAVE_SETSTATE=1;           AC_SUBST([HAVE_SETSTATE])
   HAVE_DECL_SETSTATE=1;      AC_SUBST([HAVE_DECL_SETSTATE])
   HAVE_STRTOD=1;             AC_SUBST([HAVE_STRTOD])
+  HAVE_STRTOLD=1;            AC_SUBST([HAVE_STRTOLD])
   HAVE_STRTOLL=1;            AC_SUBST([HAVE_STRTOLL])
   HAVE_STRTOULL=1;           AC_SUBST([HAVE_STRTOULL])
   HAVE_STRUCT_RANDOM_DATA=1; AC_SUBST([HAVE_STRUCT_RANDOM_DATA])
@@ -128,6 +130,7 @@ AC_DEFUN([gl_STDLIB_H_DEFAULTS],
   REPLACE_SETENV=0;          AC_SUBST([REPLACE_SETENV])
   REPLACE_SETSTATE=0;        AC_SUBST([REPLACE_SETSTATE])
   REPLACE_STRTOD=0;          AC_SUBST([REPLACE_STRTOD])
+  REPLACE_STRTOLD=0;         AC_SUBST([REPLACE_STRTOLD])
   REPLACE_UNSETENV=0;        AC_SUBST([REPLACE_UNSETENV])
   REPLACE_WCTOMB=0;          AC_SUBST([REPLACE_WCTOMB])
 ])