The of-optim package fails with:
invalid doc file format
make: *** [../doc/optim.texi] Error 25
This looks like an error extracting documentation from the code files. There is a bootstrap script in the src/ directory. But this bootstrap just does the same ‘make doc’, leading to the same error.
Looking further inside, it seems the problem is munge-texi.pl is identifying all the files as invalid, perhaps its validity test is incorrect. I have added a patch to remove the validity test and the documentation extraction appears to work from the command line.
Fixed in build 46.