From 25a0f5a4dbadbf3d387a6bdb30b72f051b3b1506 Mon Sep 17 00:00:00 2001
From: Arthur Lee <me@arthur.li>
Date: Fri, 18 Oct 2019 17:13:07 +0800
Subject: wt: Permit overriding of optional libraries

---
 pkgs/development/libraries/wt/default.nix | 11 +++++++----
 1 file changed, 7 insertions(+), 4 deletions(-)

(limited to 'pkgs/development')

diff --git a/pkgs/development/libraries/wt/default.nix b/pkgs/development/libraries/wt/default.nix
index 31fa104fb059..b5a7bae68ead 100644
--- a/pkgs/development/libraries/wt/default.nix
+++ b/pkgs/development/libraries/wt/default.nix
@@ -27,13 +27,16 @@ let
       ];
 
       cmakeFlags = [
-        "-DWT_WRASTERIMAGE_IMPLEMENTATION=GraphicsMagick"
         "-DWT_CPP_11_MODE=-std=c++11"
-        "-DGM_PREFIX=${graphicsmagick}"
-        "-DMYSQL_PREFIX=${libmysqlclient}"
         "-DHARFBUZZ_INCLUDE_DIR=${harfbuzz.dev}/include"
         "--no-warn-unused-cli"
-      ];
+      ]
+      ++ stdenv.lib.optionals (graphicsmagick != null) [
+        "-DWT_WRASTERIMAGE_IMPLEMENTATION=GraphicsMagick"
+        "-DGM_PREFIX=${graphicsmagick}"
+      ]
+      ++ stdenv.lib.optional (libmysqlclient != null)
+        "-DMYSQL_PREFIX=${libmysqlclient}";
 
       meta = with stdenv.lib; {
         homepage = "https://www.webtoolkit.eu/wt";
-- 
cgit 1.4.1