arch/x86/events/core.c:1650: undefined reference to `stpcpy'
arch/x86/events/core.c:1673: undefined reference to `stpcpy'
arch/x86/events/intel/uncore.c:100: undefined reference to `stpcpy'
drivers/tty/tty_io.c:1138: undefined reference to `stpcpy'
drivers/usb/class/usblp.c:1083: undefined reference to `stpcpy'