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.

4 files changed, 40 insertions, 7 deletions

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,