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nixpkgs/pkgs/development/compilers/ghc/common-have-ncg.nix
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Nix

# Determines whether the Native Code Generation (NCG) backend of the given
# GHC `version` is supported for compiling to `stdenv.targetPlatform`.
{
version,
stdenv,
lib,
}:
stdenv.targetPlatform.isx86
|| stdenv.targetPlatform.isPower
|| (lib.versionOlder version "9.4" && stdenv.targetPlatform.isSparc)
|| (lib.versionAtLeast version "9.2" && stdenv.targetPlatform.isAarch64)
|| (lib.versionAtLeast version "9.6" && stdenv.targetPlatform.isGhcjs)
|| (lib.versionAtLeast version "9.12" && stdenv.targetPlatform.isRiscV64)