* libc/include/stdio.h (fcloseall): Declare as __GNU_VISIBLE only.
	(renameat): Drop explicit __CYGWIN__ dependency.
	* libc/include/stdio.h (fcloseall): Declare as __GNU_VISIBLE only.
	(renameat): Drop explicit __CYGWIN__ dependency.
	* libc/include/stdio.h (tempnam): Declare as __BSD_VISIBLE or
	__XSI_VISIBLE or if __POSIX_VISIBLE >= 200112.
	* libc/include/stdio.h (tempnam): Declare as __BSD_VISIBLE or
	__XSI_VISIBLE or if __POSIX_VISIBLE >= 200112.
* signal.cc (sigprocmask): Fix strace output to include "how".
* fhandler_console.cc (dev_console::save_restore): Only current dwEnd line
rather than the one after that.
* signal.cc (sigprocmask): Fix strace output to include "how".
* fhandler_console.cc (dev_console::save_restore): Only current dwEnd line
rather than the one after that.