Packaging/32bit Applications: Difference between revisions
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If a package wants to compile both 32/64-bit executable, you need a compiler with multilib support. | If a package wants to compile both 32/64-bit executable, 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. | This is equivalent to using <code>gcc-multilib</code> in debian derivatives. | ||
Revision as of 17:52, 19 March 2018
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 multilib software
If a package wants to compile both 32/64-bit executable, 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.