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Simpler way to allow -march=native on nixOS

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Zahary Karadjov 2022-10-17 18:48:58 +03:00
parent 9fd4e7405e
commit 1e648b57cc
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1 changed files with 7 additions and 6 deletions
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13
installer/nix/shell.nix
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@ -1,7 +1,8 @@
{ pkgs ? import <nixpkgs> { } }: with pkgs;
{ pkgs ? import <nixpkgs> {}}:
with pkgs;
mkShell {
buildInputs = [
llvmPackages_14.clang-unwrapped
figlet
git
gnumake
@ -13,10 +14,10 @@ mkShell {
];
shellHook = ''
# We use clang unwrapped because the compiler wrappers under Nix
# ignore -march=native in order to keep the build deterministic
export PATH=${llvmPackages_14.clang-unwrapped}/bin:$PATH
export CC=clang
# By default, the Nix wrapper scripts for executing the system compilers
# will erase `-march=native` because this introduces impurity in the build.
# For the purposes of compiling Nimbus, this behavior is not desired:
export NIX_ENFORCE_NO_NATIVE=0
figlet "Welcome to Nimbus-eth2"
'';