From b3645d74d1ec4bd88c521376aca59e9cab0093ef Mon Sep 17 00:00:00 2001
From: Will Dietz <w@wdtz.org>
Date: Thu, 20 Sep 2018 19:42:44 -0500
Subject: [PATCH] llvm7: only use 1 number in version suffix, upstream changed

See llvm 2a6cf85828509e89e18739e5f4b9a958820d66d4
---
 pkgs/development/compilers/llvm/7/llvm.nix | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/pkgs/development/compilers/llvm/7/llvm.nix b/pkgs/development/compilers/llvm/7/llvm.nix
index ef39dd9e918..4f540d23c9e 100644
--- a/pkgs/development/compilers/llvm/7/llvm.nix
+++ b/pkgs/development/compilers/llvm/7/llvm.nix
@@ -20,7 +20,7 @@ let
 
   # Used when creating a version-suffixed symlink of libLLVM.dylib
   shortVersion = with stdenv.lib;
-    concatStringsSep "." (take 2 (splitString "." release_version));
+    concatStringsSep "." (take 1 (splitString "." release_version));
 in stdenv.mkDerivation (rec {
   name = "llvm-${version}";