From Fedora Project Wiki
The following metadata was found in MoinMoin that could not be converted
to a useful value in MediaWiki:
- elif: __WORDSIZE == 64
- include: "myautoconfig-64.h"
- error: "Unknown word size"
- if: __WORDSIZE == 32
multilib devel packages
Multilib devel packages do not work with current Fedora packaging guidelines:
Guidelines requires devel packages to be architecture specific (no BuildArch: noarch). Guidelines requires having dependencies between architecture specific packages restricted to architecture (Requires: foo-devel%{?_isa}). C guildelines require depending on "gcc" for standard C library header files. Files in devel packages usually include standard C library headers files, thus one needs to "Require: gcc%{?_isa}" from devel packages. But it's not possible to install gcc.x86_64 and gcc.i686 at the same time (they conflicts on /usr/libexec/getconf/default).