Even so, allowing civil unions or other accommodations to homosexuals doesn't imply a willingness to be onboard with the whole gay agenda. Small "l" libertarians have repeatedly filed amicus briefs and made substantial financial contributions [in some cases paying entirely] on behalf of defendants who refused to a) house homosexuals b) hire homosexuals and c) provide services at homosexual "marriages."
Actually Rand Paul is the libertarian candidate for president in 2016, you may have heard of the Pauls, but perhaps not, since you know so little about libertarianism.
No one is talking about civil unions, the federal government suddenly took the libertarian position of treating homosexuals equal in the military, federal employment and immigration, and that includes counting their marriages as equal to mixed sex marriage.