In restricted mode (and therefore with flakes) `builtins.readFile` may not be the result of `builtins.toFile`,
making it impossible to use a generated lockFile (with or without IFD),
and thereby causing evaluation to fail if `system != builtins.currentSystem` on Hydra
so the jobs are not delegated to eligible build machines that support that system.
This is done in a way that avoids rebuilds.
In #84415, autoPatchelfHook was taught to use the correct path to the
readelf binary when a crossSystem is specified. Unfortunately, the
remainder of the functionality in the script depended on ldd, which only
reads ELF files of its own architecture. It has the further unfortunate
quality of not reporting any useful error, but rather that the file is
not a dynamic executable.
This change uses patchelf to directly analyze the DT_NEEDED tags in the
target files instead, which correctly works across architectures. It
also updates the use of objdump to be prefix-aware $OBJDUMP (which would
have been required in the PR mentioned above, but we never made it that
far into the script execution).
I currently do not have much time to work on nixpkgs. Remove
myself as a maintainer from a bunch of packages to avoid that
people are waiting on me for a review.
Conflicts:
pkgs/development/compilers/ghc/8.10.7.nix
pkgs/development/compilers/ghc/8.8.4.nix
I've removed the isWindows check from useLdGold in ghc, since that should
be covered by the new hasGold check.
I somehow accidentally left out the lib.flatten from mergeInputs. Without it, subtractLists won't ever remove anything from the inputs since the inputs will be a list of lists.
The motivation for inputsFrom is to create a shell environment that is suitable for development of the packages listed in inputsFrom. This commit filters out any dependencies from one package in inputsFrom to another when computing the shell environment's inputs. This supports the use case where several closely related packages (perhaps even built from the same source tree) are being mutually developed. It is assumed that the user will configure their environment to resolve dependencies between these mutually developed packages.
