Build failure with BIND 9.16.26

dhcp raises the following build failure with BIND 9.16.26:

In file included from ../includes/dhcpd.h:91,
                 from bpf.c:35:
../includes/omapip/isclib.h:51:10: fatal error: isc/boolean.h: No such file or directory
   51 | #include <isc/boolean.h>
      |          ^~~~~~~~~~~~~~~

This issue is raised because custom isc_boolean_t was replaced with C standard bool type 3 years ago with bind9@994e6569

This is especially an issue as BIND 9.11 EOL in March, 2022 and BIND 9.16 is current Stable/ESV version.

It seems this issue was already reported in #14 (closed) and #180 but 4.4.3 is still failing to build when the user provides an external BIND 9.16 library (through --with-libbind).

Full build log: http://autobuild.buildroot.org/results/bba/bba1d0f3693cd09cd38fe6255ecd5c8702ffb698/build-end.log