Fix undefined behaviour. * lib/bitrotate.h (rotl16, rotr16, rotl8, rotr8): Case x to 'unsigned int', to avoid shift operations on 'int'. * lib/xmemdup0.c (xmemdup0): Don't invoke memcpy with a zero size. * tests/test-count-leading-zeros.c (main): Use a random number that has as many bits as TYPE, not only 2*15 or 2*31 bits. * tests/test-count-trailing-zeros.c (main): Likewise. * tests/test-count-one-bits.c (main): Likewise. * tests/test-memmem.c: Don't include "null-ptr.h". (main): Use zerosize_ptr() instead of null_ptr(). * modules/memmem-tests (Files): Remove tests/null-ptr.h.

#!/bin/sh

tmpfiles=""
trap 'rm -fr $tmpfiles' 1 2 3 15

tmpfiles="t-c-stack.tmp"
./test-c-stack${EXEEXT} 2> t-c-stack.tmp
case $? in
  77) cat t-c-stack.tmp >&2; (exit 77); exit 77 ;;
  1) ;;
  *) (exit 1); exit 1 ;;
esac
if grep 'stack overflow' t-c-stack.tmp >/dev/null ; then
  :
else
  (exit 1); exit 1
fi

rm -fr $tmpfiles

exit 0