Packaging/32bit Applications: Difference between revisions
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'''Question''': I'm invoking gcc with -m32 and it fails to find <code>`gnu/stubs-32.h`</code><br/> | '''Question''': I'm invoking gcc with -m32 and it fails to find <code>`gnu/stubs-32.h`</code><br/> | ||
'''Answer (clever)''': you want to use <code>pkgsi686Linux</code> instead of pkgs, so things like <code>pkgsi686Linux.stdenv.mkDerivation </code> or <code>pkgsi686Linux.callPackage</code> then nix will give you 32bit everything | '''Answer (clever)''': you want to use <code>pkgsi686Linux</code> instead of pkgs, so things like <code>pkgsi686Linux.stdenv.mkDerivation </code> or <code>pkgsi686Linux.callPackage</code> then nix will give you 32bit everything<ref>[https://logs.nix.samueldr.com/nixos/2018-03-19#1521474071-1521474422; clever, #nixos 2018-03-19]</ref> | ||
== Building software with both 32- and 64-bit executables == | |||
If a package wants to compile both 32/64-bit executables, you need a compiler with multilib support. | |||
Nixpkgs provides <code>multiStdenv.mkDerivation</code> that should be used instead <code>stdenv.mkDerivation</code>. | |||
This is equivalent to using <code>gcc-multilib</code> in debian derivatives. | |||
[[Category:Development]] | |||
Latest revision as of 20:42, 24 April 2024
Building software with 32bit gcc
Question: I'm invoking gcc with -m32 and it fails to find `gnu/stubs-32.h`
Answer (clever): you want to use pkgsi686Linux instead of pkgs, so things like pkgsi686Linux.stdenv.mkDerivation or pkgsi686Linux.callPackage then nix will give you 32bit everything[1]
Building software with both 32- and 64-bit executables
If a package wants to compile both 32/64-bit executables, you need a compiler with multilib support.
Nixpkgs provides multiStdenv.mkDerivation that should be used instead stdenv.mkDerivation.
This is equivalent to using gcc-multilib in debian derivatives.