Orivej Desh
fd97db43bc
A .la file specifies linker flags to link with the library it describes. Its "dependency_libs" field lists the libraries that this library depends upon. This list often contains "-l" flags without corresponding "-L" flags. Many packages in Nixpkgs deal with this in one of these ways: - delete .la file [1] - clear dependency_libs [2] - add -L flags to dependency_libs [3] - propagate dependencies [4] Sometimes "dependency_libs" contain wrong "-L" flags pointing to the "dev" output with headers rather than to the main output with libraries. They have to be edited or deleted to reduce closure size [5]. Deleting .la files is often but not always safe [6]. Atomatically deleting as many of them as possible is complex [7]. Deleting .la files that describe shared rather than static libraries is probably safe; but clearing their "dependency_libs" field achieves the same effect with less potential for unintended consequences. This is the approach that may be enabled for all Nixpkgs. [1] https://github.com/NixOS/nixpkgs/commit/2a79d296d3de74da77b49ca8dc9d356b1a7a1c8d [2] https://github.com/NixOS/nixpkgs/commit/c83a53098599c49ec57823bf655ce8b45f6aea10 [3] https://github.com/NixOS/nixpkgs/commit/9e0dcf3bd9fcfeed576132b9101b866aa3cb76ff [4] https://github.com/NixOS/nixpkgs/commit/01134e698fdfb3b61f8ab8ec3bf13e0718f63955 [5] https://github.com/NixOS/nixpkgs/commit/f6c73f1e37c735abb686d07449f349b796c54cf8 [6] https://wiki.gentoo.org/wiki/Project:Quality_Assurance/Handling_Libtool_Archives [7] https://github.com/gentoo/gentoo/blob/fb1f2435/eclass/ltprune.eclass
Nixpkgs is a collection of packages for the Nix package manager. It is periodically built and tested by the Hydra build daemon as so-called channels. To get channel information via git, add nixpkgs-channels as a remote:
% git remote add channels git://github.com/NixOS/nixpkgs-channels.git
For stability and maximum binary package support, it is recommended to maintain
custom changes on top of one of the channels, e.g. nixos-18.03 for the latest
release and nixos-unstable for the latest successful build of master:
% git remote update channels
% git rebase channels/nixos-18.03
For pull-requests, please rebase onto nixpkgs master.
NixOS Linux distribution source code is located inside
nixos/ folder.
- NixOS installation instructions
- Documentation (Nix Expression Language chapter)
- Manual (How to write packages for Nix)
- Manual (NixOS)
- Community maintained wiki
- Continuous package builds for unstable/master
- Continuous package builds for 18.03 release
- Tests for unstable/master
- Tests for 18.03 release
Communication: