[glibc] y2038: Add __USE_TIME_BITS64 support for struct timespec

[glibc] y2038: Add __USE_TIME_BITS64 support for struct timespec

[Adhemerval Zanella]

https://sourceware.org/git/gitweb.cgi?p=glibc.git;h=c606975bd09e9dcbf9901b1b57ab848e26005e85

commit c606975bd09e9dcbf9901b1b57ab848e26005e85
Author: Adhemerval Zanella <adhemerval.zanella@linaro.org>
Date:   Wed Feb 17 16:19:45 2021 -0300

    y2038: Add __USE_TIME_BITS64 support for struct timespec
    
    The __USE_TIME_BITS64 is not defined internally yet.
    
    Reviewed-by: Lukasz Majewski <lukma@denx.de>
    Reviewed-by: Carlos O'Donell <carlos@redhat.com>
    Tested-by: Carlos O'Donell <carlos@redhat.com>

Diff:
---
 time/bits/types/struct_timespec.h | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/time/bits/types/struct_timespec.h b/time/bits/types/struct_timespec.h
index d11c69cfd3..489e81136d 100644
--- a/time/bits/types/struct_timespec.h
+++ b/time/bits/types/struct_timespec.h
@@ -4,15 +4,20 @@
 
 #include <bits/types.h>
 #include <bits/endian.h>
+#include <bits/types/time_t.h>
 
 /* POSIX.1b structure for a time value.  This is like a `struct timeval' but
    has nanoseconds instead of microseconds.  */
 struct timespec
 {
+#ifdef __USE_TIME_BITS64
+  __time64_t tv_sec;		/* Seconds.  */
+#else
   __time_t tv_sec;		/* Seconds.  */
+#endif
 #if __WORDSIZE == 64 \
   || (defined __SYSCALL_WORDSIZE && __SYSCALL_WORDSIZE == 64) \
-  || __TIMESIZE == 32
+  || (__TIMESIZE == 32 && !defined __USE_TIME_BITS64)
   __syscall_slong_t tv_nsec;	/* Nanoseconds.  */
 #else
 # if __BYTE_ORDER == __BIG_ENDIAN