From c19f3623a2453a8a7c810a875e09dea08ef42f97 Mon Sep 17 00:00:00 2001
From: Drew Risinger <drewrisinger@users.noreply.github.com>
Date: Wed, 14 Oct 2020 15:32:17 -0400
Subject: [PATCH] spdlog: build shared library

---
 pkgs/development/libraries/spdlog/default.nix | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/pkgs/development/libraries/spdlog/default.nix b/pkgs/development/libraries/spdlog/default.nix
index 0638ec47c55..2022ec7caaa 100644
--- a/pkgs/development/libraries/spdlog/default.nix
+++ b/pkgs/development/libraries/spdlog/default.nix
@@ -16,6 +16,7 @@ let
       nativeBuildInputs = [ cmake ];
 
       cmakeFlags = [
+        "-DSPDLOG_BUILD_SHARED=ON"
         "-DSPDLOG_BUILD_EXAMPLE=OFF"
         "-DSPDLOG_BUILD_BENCH=OFF"
         "-DSPDLOG_BUILD_TESTS=ON"
@@ -29,6 +30,7 @@ let
       '';
 
       doCheck = true;
+      preCheck = "export LD_LIBRARY_PATH=$(pwd):$LD_LIBRARY_PATH";
 
       meta = with stdenv.lib; {
         description    = "Very fast, header only, C++ logging library";