SEGV on 64-bit arch due to implicit function definitions

Binary package hint: xconsole

Function `ptsname' implicitly converted to pointer at ../xconsole.c:834

Our automated build log filter detected the problem(s) above that will
likely cause your package to segfault on architectures where the size of
a pointer is greater than the size of an integer, such as ia64 and amd64.

This is often due to a missing function prototype definition.

More information can be found at:
    http://wiki.debian.org/ImplicitPointerConversions