Add `sigset64_t` and accompanying functions.
This doesn't address `struct sigaction` and `sigaction`. That will
come later.
Bug: http://b/72493232
Test: ran tests
Change-Id: I4134346757ce3a4dac6feae413361cec16223386
diff --git a/libc/include/sys/select.h b/libc/include/sys/select.h
index ac51d3f..603a5a6 100644
--- a/libc/include/sys/select.h
+++ b/libc/include/sys/select.h
@@ -75,6 +75,7 @@
int select(int __fd_count, fd_set* __read_fds, fd_set* __write_fds, fd_set* __exception_fds, struct timeval* __timeout);
int pselect(int __fd_count, fd_set* __read_fds, fd_set* __write_fds, fd_set* __exception_fds, const struct timespec* __timeout, const sigset_t* __mask);
+int pselect64(int __fd_count, fd_set* __read_fds, fd_set* __write_fds, fd_set* __exception_fds, const struct timespec* __timeout, const sigset64_t* __mask);
__END_DECLS