I need to use Firefox PIV card support with a YubiKey 4 for HTTPS client authn. This requires a PKCS#11 lib that Firefox can use to access YubiKey’s PKCS#11 support. Currently, OpenSC does not install on OS X 10.11.
I see that OpenSC issue #577,
https://github.com/OpenSC/OpenSC/pull/577, claims to resolve this installation issue but there is no version of OpenSC that incorporates it as yet.
Has someone trustworthy built a version of an OpenSC Mac OS X 10.11 installer that is available to use? Or, Is there some other PKSC#11 lib that would work?