From 7181d20a4f0e2f2d16d349a4ae151e7814e30d63 Mon Sep 17 00:00:00 2001
From: Anthony Cowley <acowley@gmail.com>
Date: Thu, 22 Sep 2016 23:02:03 -0400
Subject: mlton: fix build with clang (darwin)

A minor tweak is necessary to avoid raising an error when building with
clang. This gets mlton building on darwin.
---
 pkgs/development/compilers/mlton/default.nix | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/pkgs/development/compilers/mlton/default.nix b/pkgs/development/compilers/mlton/default.nix
index 2a72387028d2..9c5ce109b86b 100644
--- a/pkgs/development/compilers/mlton/default.nix
+++ b/pkgs/development/compilers/mlton/default.nix
@@ -61,6 +61,8 @@ stdenv.mkDerivation rec {
     done
 
     substituteInPlace $(pwd)/../${usr_prefix}/bin/mlton --replace '/${usr_prefix}/lib/mlton' $(pwd)/../${usr_prefix}/lib/mlton
+  '' + stdenv.lib.optionalString stdenv.cc.isClang ''
+    sed -i "s_	patch -s -p0 <gdtoa.hide-public-fns.patch_	patch -s -p0 <gdtoa.hide-public-fns.patch\n\tsed -i 's|printf(emptyfmt|printf(\"\"|g' ./gdtoa/arithchk.c_" ./runtime/Makefile
   '';
 
   preBuild = ''
-- 
cgit 1.4.1