From cdee3b7966e52161c5ba086f2b5f4974be243b55 Mon Sep 17 00:00:00 2001
From: Yegor Timoshenko <yegortimoshenko@transumption.com>
Date: Mon, 29 Jul 2019 03:04:05 +0300
Subject: llvmPackages_8.libraries.libunwind: add enableShared option

---
 pkgs/development/compilers/llvm/8/libunwind.nix | 4 +++-
 pkgs/top-level/static.nix                       | 4 +++-
 2 files changed, 6 insertions(+), 2 deletions(-)

diff --git a/pkgs/development/compilers/llvm/8/libunwind.nix b/pkgs/development/compilers/llvm/8/libunwind.nix
index a4ceb9102ef..747de229890 100644
--- a/pkgs/development/compilers/llvm/8/libunwind.nix
+++ b/pkgs/development/compilers/llvm/8/libunwind.nix
@@ -1,4 +1,4 @@
-{ stdenv, version, fetch, cmake, fetchpatch }:
+{ stdenv, version, fetch, cmake, fetchpatch, enableShared ? true }:
 
 stdenv.mkDerivation {
   name = "libunwind-${version}";
@@ -19,4 +19,6 @@ stdenv.mkDerivation {
   ];
 
   enableParallelBuilding = true;
+
+  cmakeFlags = stdenv.lib.optional (!enableShared) "-DLIBUNWIND_ENABLE_SHARED=OFF";
 }
diff --git a/pkgs/top-level/static.nix b/pkgs/top-level/static.nix
index 476ad9de3e9..d69c69bd8a7 100644
--- a/pkgs/top-level/static.nix
+++ b/pkgs/top-level/static.nix
@@ -154,9 +154,11 @@ in {
         enableShared = false;
         inherit libcxxabi;
       };
+      libunwind = super.llvmPackages_8.libraries.libunwind.override {
+        enableShared = false;
+      };
     };
   };
 
   python27 = super.python27.override { static = true; };
-
 }
-- 
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