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.

9 files changed, 54 insertions, 94 deletions

diff --git a/admin/CPP-DEFINES b/admin/CPP-DEFINES
index 0e75b4d7dde..ea99d50094f 100644
--- a/admin/CPP-DEFINES
+++ b/admin/CPP-DEFINES
@@ -104,7 +104,6 @@ HAVE_ALLOCA_H
 HAVE_ALSA
 HAVE_BDFFONT
 HAVE_BOXES
-HAVE_C99_STRTOLD
 HAVE_CFMAKERAW
 HAVE_CFSETSPEED
 HAVE_CLOCK_GETTIME
diff --git a/doc/misc/texinfo.tex b/doc/misc/texinfo.tex
index 48d532bc626..71667f03ab9 100644
--- a/doc/misc/texinfo.tex
+++ b/doc/misc/texinfo.tex
@@ -3,10 +3,10 @@
 % Load plain if necessary, i.e., if running under initex.
 \expandafter\ifx\csname fmtname\endcsname\relax\input plain\fi
 %
-\def\texinfoversion{2019-01-03-15}
+\def\texinfoversion{2019-02-01.12}
 
 %
-% Copyright 1985, 1986, 1988, 1990-2018 Free Software Foundation, Inc.
+% Copyright 1985, 1986, 1988, 1990-2019 Free Software Foundation, Inc.
 %
 % This texinfo.tex file is free software: you can redistribute it and/or
 % modify it under the terms of the GNU General Public License as
@@ -7515,7 +7515,7 @@ end
   \nonfillstart
   \tt % easiest (and conventionally used) font for verbatim
   % The \leavevmode here is for blank lines.  Otherwise, we would
-  % never \starttabox and the \egroup would end verbatim mode.
+  % never \starttabbox and the \egroup would end verbatim mode.
   \def\par{\leavevmode\egroup\box\verbbox\endgraf}%
   \tabexpand
   \setupmarkupstyle{verbatim}%
@@ -7578,9 +7578,12 @@ end
   {%
     \makevalueexpandable
     \setupverbatim
-    \indexnofonts       % Allow `@@' and other weird things in file names.
-    \wlog{texinfo.tex: doing @verbatiminclude of #1^^J}%
-    \input #1
+    {%
+      \indexnofonts       % Allow `@@' and other weird things in file names.
+      \wlog{texinfo.tex: doing @verbatiminclude of #1^^J}%
+      \edef\tmp{\noexpand\input #1 }
+      \expandafter
+    }\tmp
     \afterenvbreak
   }%
 }
diff --git a/lib/ftoastr.c b/lib/ftoastr.c
index 6c0ce261dca..55f1e02e80f 100644
--- a/lib/ftoastr.c
+++ b/lib/ftoastr.c
@@ -40,9 +40,7 @@
 # define FLOAT_PREC_BOUND _GL_LDBL_PREC_BOUND
 # define FTOASTR ldtoastr
 # define PROMOTED_FLOAT long double
-# if HAVE_C99_STRTOLD
-#  define STRTOF strtold
-# endif
+# define STRTOF strtold
 #elif LENGTH == 2
 # define FLOAT double
 # define FLOAT_DIG DBL_DIG
@@ -63,7 +61,7 @@
 # endif
 #endif
 
-/* On pre-C99 hosts, approximate strtof and strtold with strtod.  This
+/* On pre-C99 hosts, approximate strtof with strtod.  This
    may generate one or two extra digits, but that's better than not
    working at all.  */
 #ifndef STRTOF
diff --git a/lib/gnulib.mk.in b/lib/gnulib.mk.in
index fdf45d61c4c..d8e51ad403b 100644
--- a/lib/gnulib.mk.in
+++ b/lib/gnulib.mk.in
@@ -176,7 +176,6 @@ BUILD_DETAILS = @BUILD_DETAILS@
 BYTESWAP_H = @BYTESWAP_H@
 CAIRO_CFLAGS = @CAIRO_CFLAGS@
 CAIRO_LIBS = @CAIRO_LIBS@
-CANNOT_DUMP = @CANNOT_DUMP@
 CC = @CC@
 CFLAGS = @CFLAGS@
 CFLAGS_SOUND = @CFLAGS_SOUND@
@@ -432,6 +431,7 @@ GNULIB_STRSTR = @GNULIB_STRSTR@
 GNULIB_STRTOD = @GNULIB_STRTOD@
 GNULIB_STRTOIMAX = @GNULIB_STRTOIMAX@
 GNULIB_STRTOK_R = @GNULIB_STRTOK_R@
+GNULIB_STRTOLD = @GNULIB_STRTOLD@
 GNULIB_STRTOLL = @GNULIB_STRTOLL@
 GNULIB_STRTOULL = @GNULIB_STRTOULL@
 GNULIB_STRTOUMAX = @GNULIB_STRTOUMAX@
@@ -634,6 +634,7 @@ HAVE_STRPBRK = @HAVE_STRPBRK@
 HAVE_STRPTIME = @HAVE_STRPTIME@
 HAVE_STRSEP = @HAVE_STRSEP@
 HAVE_STRTOD = @HAVE_STRTOD@
+HAVE_STRTOLD = @HAVE_STRTOLD@
 HAVE_STRTOLL = @HAVE_STRTOLL@
 HAVE_STRTOULL = @HAVE_STRTOULL@
 HAVE_STRUCT_RANDOM_DATA = @HAVE_STRUCT_RANDOM_DATA@
@@ -934,6 +935,7 @@ REPLACE_STRSTR = @REPLACE_STRSTR@
 REPLACE_STRTOD = @REPLACE_STRTOD@
 REPLACE_STRTOIMAX = @REPLACE_STRTOIMAX@
 REPLACE_STRTOK_R = @REPLACE_STRTOK_R@
+REPLACE_STRTOLD = @REPLACE_STRTOLD@
 REPLACE_STRTOUMAX = @REPLACE_STRTOUMAX@
 REPLACE_STRUCT_TIMEVAL = @REPLACE_STRUCT_TIMEVAL@
 REPLACE_SYMLINK = @REPLACE_SYMLINK@
@@ -959,6 +961,7 @@ REPLACE_WRITE = @REPLACE_WRITE@
 RSVG_CFLAGS = @RSVG_CFLAGS@
 RSVG_LIBS = @RSVG_LIBS@
 SEPCHAR = @SEPCHAR@
+SETFATTR = @SETFATTR@
 SETTINGS_CFLAGS = @SETTINGS_CFLAGS@
 SETTINGS_LIBS = @SETTINGS_LIBS@
 SHELL = @SHELL@
@@ -2546,6 +2549,7 @@ stdlib.h: stdlib.in.h $(top_builddir)/config.status $(CXXDEFS_H) \
               -e 's/@''GNULIB_SECURE_GETENV''@/$(GNULIB_SECURE_GETENV)/g' \
               -e 's/@''GNULIB_SETENV''@/$(GNULIB_SETENV)/g' \
               -e 's/@''GNULIB_STRTOD''@/$(GNULIB_STRTOD)/g' \
+              -e 's/@''GNULIB_STRTOLD''@/$(GNULIB_STRTOLD)/g' \
               -e 's/@''GNULIB_STRTOLL''@/$(GNULIB_STRTOLL)/g' \
               -e 's/@''GNULIB_STRTOULL''@/$(GNULIB_STRTOULL)/g' \
               -e 's/@''GNULIB_SYSTEM_POSIX''@/$(GNULIB_SYSTEM_POSIX)/g' \
@@ -2582,6 +2586,7 @@ stdlib.h: stdlib.in.h $(top_builddir)/config.status $(CXXDEFS_H) \
               -e 's|@''HAVE_SETSTATE''@|$(HAVE_SETSTATE)|g' \
               -e 's|@''HAVE_DECL_SETSTATE''@|$(HAVE_DECL_SETSTATE)|g' \
               -e 's|@''HAVE_STRTOD''@|$(HAVE_STRTOD)|g' \
+              -e 's|@''HAVE_STRTOLD''@|$(HAVE_STRTOLD)|g' \
               -e 's|@''HAVE_STRTOLL''@|$(HAVE_STRTOLL)|g' \
               -e 's|@''HAVE_STRTOULL''@|$(HAVE_STRTOULL)|g' \
               -e 's|@''HAVE_STRUCT_RANDOM_DATA''@|$(HAVE_STRUCT_RANDOM_DATA)|g' \
@@ -2605,6 +2610,7 @@ stdlib.h: stdlib.in.h $(top_builddir)/config.status $(CXXDEFS_H) \
               -e 's|@''REPLACE_SETENV''@|$(REPLACE_SETENV)|g' \
               -e 's|@''REPLACE_SETSTATE''@|$(REPLACE_SETSTATE)|g' \
               -e 's|@''REPLACE_STRTOD''@|$(REPLACE_STRTOD)|g' \
+              -e 's|@''REPLACE_STRTOLD''@|$(REPLACE_STRTOLD)|g' \
               -e 's|@''REPLACE_UNSETENV''@|$(REPLACE_UNSETENV)|g' \
               -e 's|@''REPLACE_WCTOMB''@|$(REPLACE_WCTOMB)|g' \
               -e '/definitions of _GL_FUNCDECL_RPL/r $(CXXDEFS_H)' \
diff --git a/lib/regexec.c b/lib/regexec.c
index 2f7cb5dcb1f..7fcd1a509ae 100644
--- a/lib/regexec.c
+++ b/lib/regexec.c
@@ -1293,8 +1293,10 @@ proceed_next_node (const re_match_context_t *mctx, Idx nregs, regmatch_t *regs,
               else if (naccepted)
                 {
                   char *buf = (char *) re_string_get_buffer (&mctx->input);
-                  if (memcmp (buf + regs[subexp_idx].rm_so, buf + *pidx,
-                              naccepted) != 0)
+                  if (mctx->input.valid_len - *pidx < naccepted
+                      || (memcmp (buf + regs[subexp_idx].rm_so, buf + *pidx,
+                                  naccepted)
+                          != 0))
                     return -1;
                 }
             }
diff --git a/lib/stdlib.in.h b/lib/stdlib.in.h
index be8ab3b86c2..f829525c104 100644
--- a/lib/stdlib.in.h
+++ b/lib/stdlib.in.h
@@ -929,6 +929,7 @@ _GL_WARN_ON_USE (setenv, "setenv is unportable - "
 #  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
 #   define strtod rpl_strtod
 #  endif
+#  define GNULIB_defined_strtod_function 1
 _GL_FUNCDECL_RPL (strtod, double, (const char *str, char **endp)
                                   _GL_ARG_NONNULL ((1)));
 _GL_CXXALIAS_RPL (strtod, double, (const char *str, char **endp));
@@ -948,6 +949,32 @@ _GL_WARN_ON_USE (strtod, "strtod is unportable - "
 # endif
 #endif
 
+#if @GNULIB_STRTOLD@
+ /* Parse a 'long double' from STRING, updating ENDP if appropriate.  */
+# if @REPLACE_STRTOLD@
+#  if !(defined __cplusplus && defined GNULIB_NAMESPACE)
+#   define strtold rpl_strtold
+#  endif
+#  define GNULIB_defined_strtold_function 1
+_GL_FUNCDECL_RPL (strtold, long double, (const char *str, char **endp)
+                                        _GL_ARG_NONNULL ((1)));
+_GL_CXXALIAS_RPL (strtold, long double, (const char *str, char **endp));
+# else
+#  if !@HAVE_STRTOLD@
+_GL_FUNCDECL_SYS (strtold, long double, (const char *str, char **endp)
+                                        _GL_ARG_NONNULL ((1)));
+#  endif
+_GL_CXXALIAS_SYS (strtold, long double, (const char *str, char **endp));
+# endif
+_GL_CXXALIASWARN (strtold);
+#elif defined GNULIB_POSIXCHECK
+# undef strtold
+# if HAVE_RAW_DECL_STRTOLD
+_GL_WARN_ON_USE (strtold, "strtold is unportable - "
+                 "use gnulib module strtold for portability");
+# endif
+#endif
+
 #if @GNULIB_STRTOLL@
 /* Parse a signed integer whose textual representation starts at STRING.
    The integer is expected to be in base BASE (2 <= BASE <= 36); if BASE == 0,
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])
 ])