Vivien Kraus via Bug reports for GNU Guix <bug-guix@gnu.org> writes:
> Dear guix, > > p11-kit is switching its build system to meson. The README already > advertises it as the way to build p11-kit. When I try to change that, > guix builds fine. Then, if I try to run guix build p11-kit, guix will > crash after exhausting all my memory. I suspect a circular dependency > of some sort, but I don’t know how to debug it. > > If I try and run: > $ ./pre-inst-env guix graph --type=bag p11-kit > > Then I get as an output, > > digraph "Guix bag" { > > And then guix starts eating my memory indefinitely until I cancel it. > > How can I debug this? > > Best regards, > > Vivien The way I debugged a cycle was: * use package graph type * import graph into Python's networkx using pydot * run networkx's cycle detection Here is the script so you don't have to figure it out yourself: ``` #!/usr/bin/env python # coding: utf-8 import networkx import sys G = networkx.drawing.nx_pydot.read_dot(sys.stdin) Va = networkx.function.get_node_attributes(G, "label") print(*[Va[e[0]] for e in networkx.find_cycle(G)]) ```