FreeBSD 10.1Stable doesn't build /rescue/rescue due to undefined reference `__libc_interposing'. 

Reference: https://lists.freebsd.org/pipermail/svn-src-stable-10/2015-January/004295.html

Error condition generated 
cc -static -o rescue rescue.o cat.lo chflags.lo chio.lo chmod.lo cp.lo date.lo dd.lo df.lo echo.lo ed.lo expr.lo getfacl.lo hostname.lo kenv.lo kill.lo ln.lo ls.lo mkdir.lo mv.lo pkill.lo ps.lo pwd.lo realpath.lo rm.lo rmdir.lo setfacl.lo sh.lo sleep.lo stty.lo sync.lo test.lo csh.lo badsect.lo camcontrol.lo ccdconfig.lo clri.lo devfs.lo dmesg.lo dump.lo dumpfs.lo dumpon.lo fsck.lo fsck_ffs.lo fsck_msdosfs.lo fsdb.lo fsirand.lo gbde.lo geom.lo ifconfig.lo init.lo kldconfig.lo kldload.lo kldstat.lo kldunload.lo ldconfig.lo md5.lo mdconfig.lo mdmfs.lo mknod.lo mount.lo mount_cd9660.lo mount_msdosfs.lo mount_nfs.lo mount_nullfs.lo mount_udf.lo mount_unionfs.lo newfs.lo newfs_msdos.lo nos-tun.lo ping.lo reboot.lo restore.lo rcorder.lo route.lo routed.lo rtquery.lo rtsol.lo savecore.lo spppcontrol.lo swapon.lo sysctl.lo tunefs.lo umount.lo ping6.lo bsdlabel.lo fdisk.lo dhclient.lo head.lo mt.lo nc.lo sed.lo tail.lo tee.lo gzip.lo bzip2.lo less.lo xz.lo tar.lo vi.lo id.lo chroot.lo chown.lo /usr/obj/usr/src/rescue/rescue/../librescue/exec.o /usr/obj/usr/src/rescue/rescue/../librescue/getusershell.o /usr/obj/usr/src/rescue/rescue/../librescue/login_class.o /usr/obj/usr/src/rescue/rescue/../librescue/popen.o /usr/obj/usr/src/rescue/rescue/../librescue/rcmdsh.o /usr/obj/usr/src/rescue/rescue/../librescue/sysctl.o /usr/obj/usr/src/rescue/rescue/../librescue/system.o -lcrypt -ledit -ljail -lkvm -ll -ltermcap -lutil -lalias -lcam -lcurses -ldevstat -lipsec -lipx -lgeom -lbsdxml -lkiconv -lsbuf -lufs -lz -lbz2 -llzma -larchive -lcrypto -lmd -lm
nc.lo: In function `_$$hide$$ nc.lo main':
(.text+0x640): warning: warning: mktemp() possibly used unsafely; consider using mkstemp()
/usr/obj/usr/src/rescue/rescue/../librescue/system.o: In function `system':
/usr/src/rescue/librescue/../../lib/libc/stdlib/system.c:(.text.system[system]+0x7): undefined reference to `__libc_interposing'
/usr/bin/ld: rescue: hidden symbol `__libc_interposing' isn't defined
/usr/bin/ld: final link failed: Nonrepresentable section on output
cc: error: linker command failed with exit code 1 (use -v to see invocation)
*** Error code 1