From e358fff0d668d825e6e9b8376466bf56e0422d7b Mon Sep 17 00:00:00 2001
From: John Ericson <John.Ericson@Obsidian.Systems>
Date: Wed, 13 Jun 2018 21:01:29 -0400
Subject: [PATCH] llvm: use native cmake for libc++abi

Finish what 1cb1b9193b64c74df3b269dabb520c9ae73ee8d5 started.
---
 pkgs/development/compilers/llvm/3.7/libc++abi.nix | 3 ++-
 pkgs/development/compilers/llvm/3.8/libc++abi.nix | 3 ++-
 pkgs/development/compilers/llvm/3.9/libc++abi.nix | 1 -
 3 files changed, 4 insertions(+), 3 deletions(-)

diff --git a/pkgs/development/compilers/llvm/3.7/libc++abi.nix b/pkgs/development/compilers/llvm/3.7/libc++abi.nix
index d2be57b1a5fa..2c79d7b3b1b5 100644
--- a/pkgs/development/compilers/llvm/3.7/libc++abi.nix
+++ b/pkgs/development/compilers/llvm/3.7/libc++abi.nix
@@ -11,7 +11,8 @@ in stdenv.mkDerivation {
 
   src = fetch "libcxxabi" "0ambfcmr2nh88hx000xb7yjm9lsqjjz49w5mlf6dlxzmj3nslzx4";
 
-  buildInputs = [ cmake ] ++ stdenv.lib.optional (!stdenv.isDarwin && !stdenv.isFreeBSD) libunwind;
+  nativeBuildInputs = [ cmake ];
+  buildInputs = stdenv.lib.optional (!stdenv.isDarwin && !stdenv.isFreeBSD) libunwind;
 
   postUnpack = ''
     unpackFile ${libcxx.src}
diff --git a/pkgs/development/compilers/llvm/3.8/libc++abi.nix b/pkgs/development/compilers/llvm/3.8/libc++abi.nix
index 6b98a5726cf6..45fb7b5be4f6 100644
--- a/pkgs/development/compilers/llvm/3.8/libc++abi.nix
+++ b/pkgs/development/compilers/llvm/3.8/libc++abi.nix
@@ -5,7 +5,8 @@ stdenv.mkDerivation {
 
   src = fetch "libcxxabi" "1qfs2iis1i0ppv11jndc98cvd7s25pj46pq2sfyldmzswdxmzdg1";
 
-  buildInputs = [ cmake ] ++ stdenv.lib.optional (!stdenv.isDarwin && !stdenv.isFreeBSD) libunwind;
+  nativeBuildInputs = [ cmake ];
+  buildInputs = stdenv.lib.optional (!stdenv.isDarwin && !stdenv.isFreeBSD) libunwind;
 
   postUnpack = ''
     unpackFile ${libcxx.src}
diff --git a/pkgs/development/compilers/llvm/3.9/libc++abi.nix b/pkgs/development/compilers/llvm/3.9/libc++abi.nix
index 65345ca69925..dc508757ab6d 100644
--- a/pkgs/development/compilers/llvm/3.9/libc++abi.nix
+++ b/pkgs/development/compilers/llvm/3.9/libc++abi.nix
@@ -6,7 +6,6 @@ stdenv.mkDerivation {
   src = fetch "libcxxabi" "1qi9q06zanqm8awzq83810avmvi52air6gr9zfip8mbg5viqn3cj";
 
   nativeBuildInputs = [ cmake ];
-
   buildInputs = stdenv.lib.optional (!stdenv.isDarwin && !stdenv.isFreeBSD) libunwind;
 
   postUnpack = ''