From c1127b95ceeaf07ca9c345b687b1b4ecddbc0572 Mon Sep 17 00:00:00 2001
From: tkatchev <tkatchev@gmail.com>
Date: Thu, 22 Mar 2018 15:45:39 +0300
Subject: [PATCH] boost: Fix static library builds. (link=static and
 runtime-link=static together breaks Boost's build scripts.)

---
 pkgs/development/libraries/boost/generic.nix | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/pkgs/development/libraries/boost/generic.nix b/pkgs/development/libraries/boost/generic.nix
index 14ea512afbd2..efe1151359d7 100644
--- a/pkgs/development/libraries/boost/generic.nix
+++ b/pkgs/development/libraries/boost/generic.nix
@@ -55,11 +55,11 @@ let
     "--layout=${layout}"
     "variant=${variant}"
     "threading=${threading}"
-    "runtime-link=${runtime-link}"
     "link=${link}"
     "-sEXPAT_INCLUDE=${expat.dev}/include"
     "-sEXPAT_LIBPATH=${expat.out}/lib"
-  ] ++ optional (variant == "release") "debug-symbols=off"
+  ] ++ optional (link != "static") "runtime-link=${runtime-link}"
+    ++ optional (variant == "release") "debug-symbols=off"
     ++ optional (toolset != null) "toolset=${toolset}"
     ++ optional (mpi != null || hostPlatform != buildPlatform) "--user-config=user-config.jam"
     ++ optionals (hostPlatform.libc == "msvcrt") [