From af2ee66a19b5d330653268db56f258fe2e462838 Mon Sep 17 00:00:00 2001
From: Moritz Angermann <moritz.angermann@gmail.com>
Date: Thu, 14 Mar 2019 21:44:21 +0800
Subject: [PATCH] `--via-asm` only on windows

---
 builder/comp-builder.nix | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/builder/comp-builder.nix b/builder/comp-builder.nix
index d26ce3f41e..df0510b0f9 100644
--- a/builder/comp-builder.nix
+++ b/builder/comp-builder.nix
@@ -170,7 +170,7 @@ let
       ++ lib.optional (deadCodeElimination && stdenv.hostPlatform.isLinux) "--enable-split-sections"
       ++ lib.optional (static) "--enable-static"
       ++ lib.optionals (stdenv.hostPlatform != stdenv.buildPlatform) (
-        map (arg: "--hsc2hs-option=" + arg) ["--cross-compile" "--via-asm"]
+        map (arg: "--hsc2hs-option=" + arg) (["--cross-compile"] ++ lib.optionals (stdenv.hostPlatform.isWindows) ["--via-asm"])
         ++ lib.optional (package.buildType == "Configure") "--configure-option=--host=${stdenv.hostPlatform.config}" )
       ++ component.configureFlags
   );