remove special handling of rename()

Change-Id: I69694e155250dc5f527dacbaf3f0ecbdc4873989

include/stdio.h

@@ -276,7 +276,7 @@ int	 vsprintf(char * __restrict, const char * __restrict,
 		__printflike(2, 0);
 #endif
 
-#if !defined(__minix) && (defined(_POSIX_C_SOURCE) || defined(_XOPEN_SOURCE))
+#if defined(_POSIX_C_SOURCE) || defined(_XOPEN_SOURCE)
 int	 rename (const char *, const char *) __RENAME(__posix_rename);
 #else
 int	 rename (const char *, const char *);

lib/libc/sys-minix/Makefile.inc

@@ -13,7 +13,7 @@ SRCS+= 	accept.c access.c adjtime.c bind.c brk.c sbrk.c m_closefrom.c getsid.c \
 	ioctl.c issetugid.c kill.c link.c listen.c loadname.c lseek.c \
 	minix_rs.c mkdir.c mkfifo.c mknod.c mmap.c mount.c nanosleep.c \
 	open.c pathconf.c pipe.c poll.c pread.c ptrace.c pwrite.c \
-	read.c readlink.c reboot.c recvfrom.c recvmsg.c rename.c\
+	read.c readlink.c reboot.c recvfrom.c recvmsg.c rename.c \
 	rmdir.c select.c sem.c sendmsg.c sendto.c setgroups.c setsid.c \
 	setgid.c settimeofday.c setuid.c shmat.c shmctl.c shmget.c stime.c \
 	vectorio.c shutdown.c sigaction.c sigpending.c sigreturn.c sigsuspend.c\

lib/libc/sys-minix/rename.c

@@ -5,6 +5,10 @@
 #include <string.h>
 #include <stdio.h>
 
+#ifdef __weak_alias
+__weak_alias(__posix_rename, rename)
+#endif
+
 int rename(const char *name, const char *name2)
 {
   message m;