From a51f6474d2c814f2252a8aa32286736d567c01e0 Mon Sep 17 00:00:00 2001
From: Jan Tojnar <jtojnar@gmail.com>
Date: Mon, 18 Sep 2017 03:25:11 +0200
Subject: [PATCH] =?UTF-8?q?libical:=201.0.1=20=E2=86=92=202.0.0?=
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---
 .../development/libraries/libical/default.nix |  9 ++--
 .../libraries/libical/respect-env-tzdir.patch | 48 ++++++++++---------
 2 files changed, 31 insertions(+), 26 deletions(-)

diff --git a/pkgs/development/libraries/libical/default.nix b/pkgs/development/libraries/libical/default.nix
index a91205e182c7..5ba8bb667845 100644
--- a/pkgs/development/libraries/libical/default.nix
+++ b/pkgs/development/libraries/libical/default.nix
@@ -2,18 +2,21 @@
 
 stdenv.mkDerivation rec {
   name = "libical-${version}";
-  version = "1.0.1";
+  version = "2.0.0";
 
   src = fetchFromGitHub {
     owner = "libical";
     repo = "libical";
     rev = "v${version}";
-    sha256 = "1y6rbw24m133d984pyqzx2bi7f37dsw6f33l6arwn6yd4zlqdib9";
+    sha256 = "0xsvqy1hzmwxn783wrb2k8p751544pzv39v9ynr9pj4yzkwjzsvb";
   };
 
   nativeBuildInputs = [ perl cmake ];
 
-  patches = [ ./respect-env-tzdir.patch ];
+  patches = [
+    # TODO: upstream this patch
+    ./respect-env-tzdir.patch
+  ];
 
   meta = with stdenv.lib; {
     homepage = https://github.com/libical/libical;
diff --git a/pkgs/development/libraries/libical/respect-env-tzdir.patch b/pkgs/development/libraries/libical/respect-env-tzdir.patch
index fad78c2fb8a0..715ba1fa8426 100644
--- a/pkgs/development/libraries/libical/respect-env-tzdir.patch
+++ b/pkgs/development/libraries/libical/respect-env-tzdir.patch
@@ -1,27 +1,29 @@
---- a/src/libical/icaltz-util.c	2015-06-11 15:40:58.843138630 +0200
-+++ b/src/libical/icaltz-util.c	2015-06-11 15:43:12.722046252 +0200
-@@ -107,7 +107,7 @@
- 	char	charcnt[4];			
- } tzinfo; 
- 
--static char *search_paths [] = {"/usr/share/zoneinfo","/usr/lib/zoneinfo","/etc/zoneinfo","/usr/share/lib/zoneinfo"};
-+static char *search_paths [] = {"/etc/zoneinfo","/usr/share/zoneinfo","/usr/lib/zoneinfo","/usr/share/lib/zoneinfo"};
+--- a/src/libical/icaltz-util.c
++++ b/src/libical/icaltz-util.c
+@@ -96,9 +96,9 @@ typedef struct
  static char *zdir = NULL;
  
- #define NUM_SEARCH_PATHS (sizeof (search_paths)/ sizeof (search_paths [0]))
-@@ -194,6 +194,15 @@
- 	const char *fname = ZONES_TAB_SYSTEM_FILENAME;
- 	unsigned int i;
+ static char *search_paths[] = {
++    "/etc/zoneinfo",
+     "/usr/share/zoneinfo",
+     "/usr/lib/zoneinfo",
+-    "/etc/zoneinfo",
+     "/usr/share/lib/zoneinfo"
+ };
  
-+	const char *env_tzdir = getenv ("TZDIR");
-+	if (env_tzdir) {
-+		sprintf (file_path, "%s/%s", env_tzdir, fname);
-+		if (!access (file_path, F_OK|R_OK)) {
-+			zdir = env_tzdir;
-+			return;
-+		}
-+	}
+@@ -179,6 +179,15 @@ static void set_zonedir(void)
+     const char *fname = ZONES_TAB_SYSTEM_FILENAME;
+     size_t i, num_search_paths;
+ 
++   const char *env_tzdir = getenv ("TZDIR");
++   if (env_tzdir) {
++       snprintf(file_path, MAXPATHLEN, "%s/%s", env_tzdir, fname);
++       if (!access (file_path, F_OK|R_OK)) {
++           zdir = env_tzdir;
++           return;
++       }
++   }
 +
- 	for (i = 0; i < NUM_SEARCH_PATHS; i++) {
- 		sprintf (file_path, "%s/%s", search_paths [i], fname);
- 		if (!access (file_path, F_OK|R_OK)) {
+     num_search_paths = sizeof(search_paths) / sizeof(search_paths[0]);
+     for (i = 0; i < num_search_paths; i++) {
+         snprintf(file_path, MAXPATHLEN, "%s/%s", search_paths[i], fname);