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strace: assert isLinux to avoid eval error on darwin (#114974) 

libunwind.supportsHost is not available on darwin because it uses a different libunwind package (https://github.com/NixOS/nixpkgs/blob/master/pkgs/os-specific/darwin/apple-source-releases/default.nix#L270) and changing the stdenv is a big overkill.
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Ben Siraphob 2021-04-02 18:03:31 +00:00 committed by GitHub
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commit 1d2e7637b6
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4
pkgs/development/tools/misc/strace/default.nix
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@ -1,5 +1,9 @@
{ lib, stdenv, fetchurl, perl, libunwind, buildPackages }: { lib, stdenv, fetchurl, perl, libunwind, buildPackages }:
# libunwind does not have the supportsHost attribute on darwin, thus
# when this package is evaluated it causes an evaluation error
assert stdenv.isLinux;
stdenv.mkDerivation rec { stdenv.mkDerivation rec {
pname = "strace"; pname = "strace";
version = "5.11"; version = "5.11";