* include/string.h: Declare strnlen. * include/stringsupp.hxx: Declare __strnlen. * src/strnlen.cxx, tests/strnlen.c: Created. * cdl/string.cdl (CYGFUN_LIBC_STRING_GNU_STRNLEN): New option, compiles strnlen.cxx. (CYGPKG_LIBC_STRING_TESTS): Add strnlen test.

/* this is a simple hello world program */
#include <stdio.h>

int main(void)
{
  printf("Hello, eCos world!\n");
  return 0;
}