byacc

TODO

--program-prefix=b is needed to install byacc as byacc and not yacc, the latter is a symlink provided later on yacc -> byacc
btyacc is enabled by default:
- This increases compatibility with bison and allows byacc -B to be used
- This also means that backtracking features like %destructor and %locations are now supported
--enable-stdnoreturn is redundant as clang treats _Noreturn and __attribute__((noreturn)) identically; neither is posix but musl prefers _Noreturn over a gcc extension
--disable-echo silences compiler messages
--disable-leaks performs memory-leak testing
--with-dmalloc, --with-dbmalloc and --with-valgrind are for testing
--without-manpage-format does not work, use --with-manpage-format=normal instead
--without-man2html prevents checking for man2html which glaucus does not provide
Do not pass --with-system-type as it overrides --host