On Mon, Oct 10, 2016 at 1:09 PM, Eelco Dolstra <eelco.dols...@logicblox.com> wrote: > Hi, > > On 10/10/2016 11:57 AM, Jan Synáček wrote: > >> I'm trying to build the current master of systemd. I only slightly modified >> pkgs/os-specific/linux/systemd/default.nix (set "version" to 'master', >> set "rev" to 7a9ee77204c2bd18ab6d0236ba17b6439ec76b46, "sha256" to >> 1s9d4ipg39718bvwrcr9vz8p07rwy5hcspc0qmp04p2zhxhcd2xx and removed the >> "patches" section). >> >> When I try building the package like so: >> >> 1) cd src/nixpkgs >> 2) NIX_PATH=$(pwd) nix-build -K -A systemd >> >> I get the following: >> ... >> cycle detected in the references of >> ‘/nix/store/2ipa3ipr85ywzq61366cg7ymk7n6bqg6-systemd-master-lib’ >> note: keeping build directory ‘/tmp/nix-build-systemd-master.drv-2’ >> error: build of >> ‘/nix/store/nxwwpnpnmif1hnb9msgbly4bn15yahx6-systemd-master.drv’ >> failed >> >> How do I figure out where the cycle is and what rpaths (it's the >> problem, right?) remove or add? > > I ran into the same problem building systemd master last week. The issue is > that > libudev.so now has a reference to $out/lib/udev/hwdb.bin. So it's not an RPATH > issue. Probably we just need to patch out the use of $out/lib/udev/hwdb.bin, > since we don't have that file anyway (we use /etc/udev/hwdb.bin). > > You can find the exact cause of these cycles using good old "grep -r".
Pardon my ignorance, but I still can't see where the cycle is and how you managed to figure it out. In this particular case, the cycle (at least a part of it) is supposed to be somewhere in '/nix/store/2ipa3ipr85ywzq61366cg7ymk7n6bqg6-systemd-master-lib' according to the error message. But that's all what it says... Maybe the message could be more helpful? How do I know for what to grep? Cheers, -- Jan Synáček _______________________________________________ nix-dev mailing list nix-dev@lists.science.uu.nl http://lists.science.uu.nl/mailman/listinfo/nix-dev