I don't know why but it looks like that the only platform which needs a c++ compiler is Beos. With this patch mojosetup requires only a c compiler on all other platforms than Beos.
Created attachment 1850 [details] use_g++_only_on_beos.patch
Comment on attachment 1850 [details] use_g++_only_on_beos.patch (changing mimetype of patch.)
Fixed in hg changeset 587:9dccead95bbc, thanks! --ryan.
This bug report has migrated to our GitHub issue tracker: https://github.com/icculus/mojosetup/issues/25
Created attachment 1850 [details] use_g++_only_on_beos.patch
Comment on attachment 1850 [details] use_g++_only_on_beos.patch (changing mimetype of patch.)