SEGV on 64-bit arch due to implicit function definitions

Function `strptime' implicitly converted to pointer at btobex.c:290

See http://people.ubuntu.com/~lamont/buildLogs/Test/libb/libbtctl/0.9.0-0ubuntu1/libbtctl_0.9.0-0ubuntu1_20071013-0015-amd64-successful.gz for the full log.

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