Most of the time "packages" was already done and sometimes we
want to retain aux ports for e.g. suricata rebuilds using rust.

Issues are still coming in, unfortunately.

PR: https://forum.opnsense.org/index.php?topic=26368.msg127915#msg127915

The solution on mismatch is rarely providing the override so
try to hint at the user using that another configuration might
be needed to match the build environment.

... and set up a chroot environment to run the proper kldxref in the
isolated environment.  It turns out that building kldxref manually
in the host builds one for the host likely with the help of /usr/include
and this fails again for the forward build.

It's the facepalm of the week.

CC: @fraenki

We do have an issue with configd not being available here but we
can always work on this later.  For now it runs into a timeout
and then continues as expected.

cc -fPIE -z noexecstack -z relro -z now -L../lib ipsec_xvalid.o utils.o misc.o -lIPSec_MB -Wl,-rpath,. -o ipsec_xvalid_test
clang -I../lib -L../lib -MMD -D_GNU_SOURCE -DNO_COMPAT_IMB_API_053 -W -Wall -Wextra -Wmissing-declarations -Wpointer-arith -Wcast-qual -Wundef -Wwrite-strings -Wformat -Wformat-security -Wunreachable-code -Wmissing-noreturn -Wsign-compare -Wno-endif-labels -Wstrict-prototypes -Wmissing-prototypes -Wold-style-definition -fno-strict-overflow -fno-delete-null-pointer-checks -fwrapv -DLINUX -I../lib/include -I../lib -O3 -g -fsanitize=fuzzer,address,leak job_api_fuzz_test.c -lIPSec_MB -o job_api_fuzz_test
ld: error: cannot open /usr/lib/clang/8.0.1/lib/freebsd/libclang_rt.fuzzer-x86_64.a: No such file or directory

Make sure to do a manual clean kernel build run in order to get
the necessary files in place.  A partial rebuild does not seem
to work.

More often than not it is useful to peek at the ports build
exit warnings but when there is no error a 100 MB file doesn't
load nicely in the browser.

According to e0e08e9a this was asked about in the forum back
then, but the plugin hasn't gotten much improvement over the years
and to use it you need an Internet connection which you can also
use to install the plugin.

On a restore you can already sync all missing plugins now which is
also helping in this case.