Bug#307559: dlisp: Build-Depends on obsolete doc++

tag 307559 patch thanks Attached is a patch to convert dlisp to use doxygen instead of doc++ to format API documentation. I won't NMU this, since I am not sure if the quality of the documentation formatting is adequate. The package does build, however, and since there is a bug squashing party goin

Bug#307559: dlisp: Build-Depends on obsolete doc++

Package: dlisp Severity: normal Hi, dlisp Build-Depends upon doc++. doc++ has been replaced by Doxygen for quite some time, and is no longer maintained. It will now no longer build from source (see #292337). Please could you update the package to use Doxygen instead? I have attached example pat