From 3a7dca9950e62aab97c3d9a56dbf1ac3eee7522c Mon Sep 17 00:00:00 2001
From: Sirio Balmelli <sirio@b-ad.ch>
Date: Mon, 20 Apr 2020 15:27:28 +0200
Subject: [PATCH] mscgen: clean up build

1. Remove freetype dependency:
    - was not being used by build
    - trying to enable freetype gives nontrivial error
      'gdoTextWidth: Problem doing text layout (GDFONTPATH=)'

2. Correctly link manpages by specifying 'outputs'.

3. Separate nativeBuildInputs from buildInputs

Signed-off-by: Sirio Balmelli <sirio@b-ad.ch>
---
 pkgs/tools/graphics/mscgen/default.nix | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/pkgs/tools/graphics/mscgen/default.nix b/pkgs/tools/graphics/mscgen/default.nix
index a8aa9cffb98..f6bec5983c2 100644
--- a/pkgs/tools/graphics/mscgen/default.nix
+++ b/pkgs/tools/graphics/mscgen/default.nix
@@ -2,7 +2,6 @@
 , bison
 , fetchurl
 , flex
-, freetype
 , gd
 , libjpeg
 , libpng
@@ -24,13 +23,16 @@ stdenv.mkDerivation {
     sha256 = "3c3481ae0599e1c2d30b7ed54ab45249127533ab2f20e768a0ae58d8551ddc23";
   };
 
-  buildInputs = [ bison flex freetype gd libjpeg libpng libwebp pkg-config zlib ];
+  nativeBuildInputs = [ bison flex pkg-config ];
+  buildInputs = [ gd libjpeg libpng libwebp zlib ];
 
   doCheck = true;
   preCheck = ''
     sed -i -e "s|#!/bin/bash|#!${runtimeShell}|" test/renderercheck.sh
   '';
 
+  outputs = [ "out" "man" ];
+
   meta = {
     homepage = "http://www.mcternan.me.uk/mscgen/";
     description = "Convert Message Sequence Chart descriptions into PNG, SVG, or EPS images";