* elf/rtld-Rules ($(objpfx)rtld-libc.a): Use $(verbose) in ar command.

* sysdeps/mach/hurd/getresuid.c: New file.
	* sysdeps/mach/hurd/getresgid.c: New file.
	* sysdeps/mach/hurd/setresuid.c: New file.
	* sysdeps/mach/hurd/setresgid.c: New file.

	* posix/unistd.h [__USE_GNU] (getresuid, getresgid, setresuid,
	setresgid): Declare them.
	* NEWS: Mention it.
	* include/unistd.h
	(__getresuid, __getresgid, __setresuid, __setresgid): Declare them,
	add libc_hidden_proto.
	* posix/Versions (libc: GLIBC_2.3.2): New set.  Add
	getresuid, getresgid, setresuid, setresgid here.
	* Versions.def (libc): Define GLIBC_2.3.2 set.
	* sysdeps/generic/getresuid.c (__getresuid): Fix argument types.
	Add libc_hidden_def.
	* sysdeps/generic/getresgid.c (__getresgid): Likewise.
	* sysdeps/generic/setresgid.c: New file.
	* sysdeps/generic/setresuid.c: New file.
	* sysdeps/unix/sysv/linux/Makefile [$(subdir) = misc]
	(sysdep_routines): Don't add getresuid and getresgid here.
	* sysdeps/unix/sysv/linux/arm/Makefile [$(subdir) = misc]
	(sysdep_routines): Don't add setresuid and setresgid here.
	* sysdeps/unix/sysv/linux/cris/Makefile: Likewise.
	* sysdeps/unix/sysv/linux/sh/Makefile: Likewise.
	* sysdeps/unix/sysv/linux/s390/s390-32/Makefile: Likewise.
	* sysdeps/unix/sysv/linux/s390/s390-64/Makefile: Likewise.
	* sysdeps/unix/sysv/linux/i386/Makefile: Likewise.
	* sysdeps/unix/sysv/linux/m68k/Makefile: Likewise.
	* posix/Makefile (routines): Add them all here instead.
	* sysdeps/unix/sysv/linux/i386/getresuid.c (getresuid): Renamed to
	__getresuid.  Add libc_hidden_def for that, and weak alias to old name.
	* sysdeps/unix/sysv/linux/i386/getresgid.c (getresgid): Renamed to
	__getresgid.  Add libc_hidden_def for that, and weak alias to old name.
	* sysdeps/unix/sysv/linux/i386/setresuid.c: Add libc_hidden_def.
	[! __NR_setresuid]: Include generic file.
	* sysdeps/unix/sysv/linux/i386/setresgid.c (setresgid): Renamed to
	__setresgid.  Add libc_hidden_def for that, and weak alias to old name.
	[! __NR_setresuid]: Include generic file.
	* sysdeps/unix/sysv/linux/syscalls.list (setresuid, setresgid):
	Caller is - now, not EXTRA.
	* sysdeps/unix/sysv/linux/sparc/sparc32/syscalls.list
	(setresuid, setresgid, getresuid, getresgid): Likewise.
	* sysdeps/unix/sysv/linux/syscalls.list (getresuid, getresgid):
	Add these calls here.
	* sysdeps/unix/sysv/linux/alpha/syscalls.list: Remove them here.
	* sysdeps/unix/sysv/linux/hppa/syscalls.list: Likewise.
	* sysdeps/unix/sysv/linux/sparc/sparc64/syscalls.list: Likewise.
	* sysdeps/unix/sysv/linux/s390/s390-64/syscalls.list: Likewise.
	* sysdeps/unix/sysv/linux/x86_64/syscalls.list: Likewise.
	* sysdeps/unix/sysv/linux/powerpc/powerpc32/syscalls.list: Likewise.
	* sysdeps/unix/sysv/linux/powerpc/powerpc64/syscalls.list: Likewise.
	* sysdeps/unix/sysv/linux/mips/syscalls.list: Likewise.
	* sysdeps/unix/sysv/linux/ia64/syscalls.list: Likewise.

	* sysdeps/unix/sysv/linux/Makefile [$(subdir) = misc]
	(sysdep_routines): Add setfsuid and setfsgid here.
	* sysdeps/unix/sysv/linux/arm/Makefile: Not here.
	* sysdeps/unix/sysv/linux/sparc/sparc32/Makefile: Likewise.
	* sysdeps/unix/sysv/linux/cris/Makefile: Likewise.
	* sysdeps/unix/sysv/linux/sh/Makefile: Likewise.
	* sysdeps/unix/sysv/linux/s390/s390-32/Makefile: Likewise.
	* sysdeps/unix/sysv/linux/s390/s390-64/Makefile: Likewise.
	* sysdeps/unix/sysv/linux/i386/Makefile: Likewise.
	* sysdeps/unix/sysv/linux/m68k/Makefile: Likewise.

	* hurd/errno.c: Renamed to ...
	* hurd/errno-loc.c: ... this.
	* hurd/Makefile (routines): errno -> errno-loc

posix/unistd.h

@@ -640,6 +640,24 @@ extern int setregid (__gid_t __rgid, __gid_t __egid) __THROW;
 extern int setegid (__gid_t __gid) __THROW;
 #endif /* Use BSD.  */
 
+#ifdef __USE_GNU
+/* Fetch the effective user ID, real user ID, and saved-set user ID,
+   of the calling process.  */
+extern int getresuid (__uid_t *__euid, __uid_t *__ruid, __uid_t *__suid);
+
+/* Fetch the effective group ID, real group ID, and saved-set group ID,
+   of the calling process.  */
+extern int getresgid (__gid_t *__egid, __gid_t *__rgid, __gid_t *__sgid);
+
+/* Set the effective user ID, real user ID, and saved-set user ID,
+   of the calling process to EUID, RUID, and SUID, respectively.  */
+extern int setresuid (__uid_t __euid, __uid_t __ruid, __uid_t __suid);
+
+/* Set the effective group ID, real group ID, and saved-set group ID,
+   of the calling process to EGID, RGID, and SGID, respectively.  */
+extern int setresgid (__gid_t __egid, __gid_t __rgid, __gid_t __sgid);
+#endif
+
 
 /* Clone the calling process, creating an exact copy.
    Return -1 for errors, 0 to the new process,