From f911edaf43e08495ef983b4a4eea57a28774fc7e Mon Sep 17 00:00:00 2001
From: Will Dietz <w@wdtz.org>
Date: Wed, 14 Mar 2018 15:35:24 -0500
Subject: [PATCH] llvm6: Build with support for the experimental WASM backend
---
pkgs/development/compilers/llvm/6/llvm.nix | 5 ++++-
1 file changed, 4 insertions(+), 1 deletion(-)
diff --git a/pkgs/development/compilers/llvm/6/llvm.nix b/pkgs/development/compilers/llvm/6/llvm.nix
index 4f7a2835cc9..256b9120c82 100644
--- a/pkgs/development/compilers/llvm/6/llvm.nix
+++ b/pkgs/development/compilers/llvm/6/llvm.nix
@@ -16,6 +16,7 @@
, debugVersion ? false
, enableManpages ? false
, enableSharedLibraries ? true
+, enableWasm ? true
, darwin
}:
@@ -115,7 +116,9 @@ in stdenv.mkDerivation (rec {
"-DCOMPILER_RT_BUILD_SANITIZERS=OFF"
"-DCOMPILER_RT_BUILD_XRAY=OFF"
- ];
+ ] ++ stdenv.lib.optional enableWasm
+ "-DLLVM_EXPERIMENTAL_TARGETS_TO_BUILD=WebAssembly"
+ ;
postBuild = ''
rm -fR $out