On Thu, Oct 27, 2016 at 10:46:11 +0100, Marius Bakke wrote: > + `(#:configure-flags (list (string-append "--enable-usbdropdir=" %output > + "/pcsc/drivers")) When I run pcscd under Guix, I get: 00000000 hotplug_libudev.c:122:HPReadBundleValues() Cannot open PC/SC drivers directory: /var/lib/pcsc/drivers 00000041 hotplug_libudev.c:123:HPReadBundleValues() Disabling USB support for pcscd. I believe that is what `--enable-usbdropdir' is referencing in ccid. pcsc-lite has the same configuration option, but it's currently hardcoded to /var/lib/pcsc/drivers; could you update it to match ccid's and see if that works? Debian has the dependencies structured such that pcscd has ccid as an input. -- Mike Gerwitz Free Software Hacker+Activist | GNU Maintainer & Volunteer GPG: D6E9 B930 028A 6C38 F43B 2388 FEF6 3574 5E6F 6D05 Old: 2217 5B02 E626 BC98 D7C0 C2E5 F22B B815 8EE3 0EAB https://mikegerwitz.com