Update from Gnulib

This incorporates:
2020-06-27 getloadavg: don’t depend on fopen-gnu
2020-06-25 c-dtoastr, c-ldtoastr: new modules
2020-06-01 getloadavg: fix double-increment bug
2020-06-01 tempname: use getrandom, not getentropy
2020-05-31 tempname: merge from glibc and coreutils
2020-05-31 getentropy: work around a macOS and Solaris problem
2020-05-31 fnmatch: merge from glibc
2020-05-30 unistd: remove conflicting declaration of getrandom
2020-05-30 don't assume that UNICODE is not defined
2020-05-29 fix compilation error on native Windows
2020-05-28 avoid dynamic loading of Windows API functions when possible
2020-05-28 at-internal: make more robust in multithreaded applications
2020-05-28 getloadavg: make more robust in multithreaded applications
2020-05-27 getloadavg: make more robust in multithreaded applications
2020-05-26 count-one-bits: fix MSVC specific code
2020-05-25 getentropy, getrandom: new modules
2020-05-24 open, openat: really support O_CLOEXEC
2020-05-23 verify: document ‘assume’ better
2020-05-21 regex: configure better with "clang -fsanitize=leak"
2020-05-21 memmem: configure better with "clang -fsanitize=undefined"
2020-05-19 ftoastr: fix ifndef typo
* build-aux/config.guess, build-aux/config.sub, doc/misc/texinfo.tex:
* lib/count-one-bits.h, lib/ftoastr.c, lib/ftoastr.h:
* lib/getloadavg.c, lib/gettimeofday.c, lib/libc-config.h:
* lib/open.c, lib/openat-proc.c, lib/tempname.c, lib/tempname.h:
* lib/unistd.in.h, lib/verify.h, m4/memmem.m4, m4/regex.m4:
* m4/unistd_h.m4:
Update from Gnulib.
* lib/getrandom.c, lib/sys_random.in.h:
* m4/getrandom.m4, m4/sys_random_h.m4:
New files, copied from Gnulib.
* lib/gnulib.mk.in, m4/gnulib-comp.m4: Regenerate.

1 files changed, 17 insertions, 6 deletions

diff --git a/lib/ftoastr.c b/lib/ftoastr.c
index 7a7d4113c22..47a83152e3f 100644
--- a/lib/ftoastr.c
+++ b/lib/ftoastr.c
@@ -33,20 +33,28 @@
 #include <stdio.h>
 #include <stdlib.h>
 
+#ifdef C_LOCALE
+# include "c-snprintf.h"
+# include "c-strtod.h"
+# define PREFIX(name) c_ ## name
+#else
+# define PREFIX(name) name
+#endif
+
 #if LENGTH == 3
 # define FLOAT long double
 # define FLOAT_DIG LDBL_DIG
 # define FLOAT_MIN LDBL_MIN
 # define FLOAT_PREC_BOUND _GL_LDBL_PREC_BOUND
-# define FTOASTR ldtoastr
+# define FTOASTR PREFIX (ldtoastr)
 # define PROMOTED_FLOAT long double
-# define STRTOF strtold
+# define STRTOF PREFIX (strtold)
 #elif LENGTH == 2
 # define FLOAT double
 # define FLOAT_DIG DBL_DIG
 # define FLOAT_MIN DBL_MIN
 # define FLOAT_PREC_BOUND _GL_DBL_PREC_BOUND
-# define FTOASTR dtoastr
+# define FTOASTR PREFIX (dtoastr)
 # define PROMOTED_FLOAT double
 #else
 # define LENGTH 1
@@ -54,7 +62,7 @@
 # define FLOAT_DIG FLT_DIG
 # define FLOAT_MIN FLT_MIN
 # define FLOAT_PREC_BOUND _GL_FLT_PREC_BOUND
-# define FTOASTR ftoastr
+# define FTOASTR PREFIX (ftoastr)
 # define PROMOTED_FLOAT double
 # if HAVE_STRTOF
 #  define STRTOF strtof
@@ -65,13 +73,16 @@
    may generate one or two extra digits, but that's better than not
    working at all.  */
 #ifndef STRTOF
-# define STRTOF strtod
+# define STRTOF PREFIX (strtod)
 #endif
 
 /* On hosts where it's not known that snprintf works, use sprintf to
    implement the subset needed here.  Typically BUFSIZE is big enough
    and there's little or no performance hit.  */
-#if ! GNULIB_SNPRINTF
+#ifdef C_LOCALE
+# undef snprintf
+# define snprintf c_snprintf
+#elif ! GNULIB_SNPRINTF
 # undef snprintf
 # define snprintf ftoastr_snprintf
 static int