guix/gnu/packages/patches/zathura-plugindir-environment-variable.patch

From ae8e4cc9ab57ff25d2ba6c4b369e8531ce43a6d2 Mon Sep 17 00:00:00 2001
From: Paul van der Walt <paul@denknerd.org>
Date: Mon, 2 Mar 2015 22:15:39 +0100
Subject: [PATCH] Search path environment variable for Zathura.

Adds a search path environment variable for zathura plugins (for reading
different file formats) called ZATHURA_PLUGIN_PATH. Command line option
-p still takes precedence.

Patch by Paul van der Walt <paul@denknerd.org>
Adjusted for Zathura 0.3.9 by Tobias Geerinckx-Rice <me@tobias.gr>
---
 zathura/zathura.c | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/zathura/zathura.c b/zathura/zathura.c
--- a/zathura/zathura.c
+++ b/zathura/zathura.c
@@ -597,6 +597,13 @@ zathura_set_plugin_dir(zathura_t* zathura, const char* dir)
   g_return_if_fail(zathura != NULL);
   g_return_if_fail(zathura->plugins.manager != NULL);
 
+  /* Added for Guix: check if environment variable
+   * is set to specify location of zathura plugins.
+   */
+
+  if (dir == NULL)
+    dir = g_getenv("ZATHURA_PLUGIN_PATH");
+
   if (dir != NULL) {
     set_plugin_dir(zathura, dir);
 #ifdef ZATHURA_PLUGINDIR