From ccdccf14609877885c33ae46534b519dcb7c16d8 Mon Sep 17 00:00:00 2001
From: mingchuan <ming@culpring.com>
Date: Tue, 12 Sep 2017 22:47:33 +0800
Subject: [PATCH] opencc: build shared library and programs

---
 pkgs/tools/text/opencc/default.nix | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/pkgs/tools/text/opencc/default.nix b/pkgs/tools/text/opencc/default.nix
index 62206c6c791..b0805b4f768 100644
--- a/pkgs/tools/text/opencc/default.nix
+++ b/pkgs/tools/text/opencc/default.nix
@@ -9,10 +9,14 @@ stdenv.mkDerivation {
 
   buildInputs = [ cmake python ];
 
-  cmakeFlags = [
-    "-DBUILD_SHARED_LIBS=OFF"
+  makeFlags = [
+    # let intermediate tools find intermediate library
+    "LD_LIBRARY_PATH=$LD_LIBRARY_PATH:$(CURDIR)/src"
   ];
 
+  # Parallel building occasionaly fails with: Error copying file "/tmp/nix-build-opencc-1.0.5.drv-0/OpenCC-ver.1.0.5/build/src/libopencc.so.1.0.0" to "/tmp/nix-build-opencc-1.0.5.drv-0/OpenCC-ver.1.0.5/build/src/tools".
+  enableParallelBuilding = false;
+
   meta = with stdenv.lib; {
     homepage = https://github.com/BYVoid/OpenCC;
     license = licenses.asl20;