This adds minimal Hurd support by implementing the _exit function.
* AUTHORS: Update.
* .gitignore: Ignore a.out, core, .config.
* include/sys/wait.h (W_EXITCODE): New define.
* lib/gnu/x86-mes-gcc/crt1.c: New file.
* lib/gnu/x86-mes-gcc/mini.c: New file.
* lib/gnu/hurd-start.c: New file.
* lib/gnu/_exit.c: New file.
* include/gnu/syscall.h: New file.
* include/gnu/hurd.h: New file.
* lib/gnu/_exit.c: New file.
* lib/gnu/exec-startup-get-data.c: New file.
* lib/gnu/hurd-start.c: New file.
* lib/gnu/proc-mark-exit.c: New file.
* lib/gnu/syscall.c: New file.
* lib/gnu/task-get-special-port.c: New file.
* lib/gnu/task-terminate.c: New file.
* lib/gnu/vm-statistics.c: New file.
* build-aux/configure-lib.sh (libc_mini_SOURCES): Add Hurd sources.
* build-aux/build.sh.in (CPPFLAGS): Add lib to includes, to find linux
crt1.c.
* build-aux/test-c.sh: Always use at least -l c+mini for GNU.
* lib/tests/scaffold/30-exit-42.exit: New file.
* lib/tests/scaffold/30-exit-42.c: New test.
* build-aux/check-mescc.sh (TESTS): Add it.
* lib/tests/scaffold/30-exit-0.c (main): Move from 00-exit-0.c; Rewrite,
use _exit.
* include/gnu/hurd-types.h: Import from GNU C Library.
* include/mach/mach-init.h: Likewise.
* lib/mach/mach-init.c: Likewise.
* lib/mach/mach_host_self.S: Likewise.
* lib/mach/mach_msg_trap.S: Likewise.
* lib/mach/mach_reply_port.S: Likewise.
* lib/mach/mach_task_self.S: Likewise.
* lib/mach/mach_thread_self.S: Likewise.
* lib/mach/msg.c: Likewise.
* lib/stub/getlogin.c: New file.
* lib/stub/setvbuf.c: New file.
* lib/stub/sigblock.c: New file.
* lib/libc+gnu.c: Include them.
* include/linux/x86/syscall.h (SYS_chdir): New macro.
* include/linux/x86_64/syscall.h (SYS_chdir): New macro.
* include/stdio.h (_IOFBF, _IOLBF, _IONBF): New macro.
* include/errno.h (ENOEXEC, ECHILD): New macro.
* include/sys/wait.h (WNOHANG): New macro.
* lib/linux/gnu.c (chdir): New function.
* include/ar.h: New file.
Throughout, make these changes
Copyright headers: GNU Mes
First mention of name: GNU Mes
Website: https://www.gnu.org/software/mes
Git: git://git.savannah.gnu.org/mes.git
Jan (janneke) Nieuwenhuizen