quassel: fix build with qt5 5.14.x

pkgs/applications/networking/irc/quassel/0001-common-Disable-enum-type-stream-operators-for-Qt-5.1.patch

@@ -0,0 +1,37 @@
+From ac9387271b2420a71f7d172f44354fc35adac504 Mon Sep 17 00:00:00 2001
+From: Manuel Nickschas <sputnick@quassel-irc.org>
+Date: Tue, 7 Jan 2020 18:34:54 +0100
+Subject: [PATCH] common: Disable enum type stream operators for Qt >= 5.14
+
+Starting from version 5.14, Qt provides stream operators for enum
+types, which collide with the ones we ship in types.h. Disable
+Quassel's stream operators when compiling against Qt 5.14 or later.
+
+(cherry-picked from 579e559a6322209df7cd51c34801fecff5fe734b)
+---
+ src/common/types.h | 2 ++
+ 1 file changed, 2 insertions(+)
+
+diff --git a/src/common/types.h b/src/common/types.h
+index 467d9fb2..c4b9f364 100644
+--- a/src/common/types.h
++++ b/src/common/types.h
+@@ -140,6 +140,7 @@ Q_DECLARE_METATYPE(QHostAddress)
+ typedef QList<MsgId> MsgIdList;
+ typedef QList<BufferId> BufferIdList;
+ 
++#if QT_VERSION < QT_VERSION_CHECK(5, 14, 0)
+ /**
+  * Catch-all stream serialization operator for enum types.
+  *
+@@ -169,6 +170,7 @@ QDataStream &operator>>(QDataStream &in, T &value) {
+     value = static_cast<T>(v);
+     return in;
+ }
++#endif
+ 
+ // Exceptions
+ 
+-- 
+2.26.2
+

pkgs/applications/networking/irc/quassel/default.nix

@@ -43,6 +43,12 @@ in (if !buildClient then stdenv.mkDerivation else mkDerivation) rec {
     sha256 = "0z8p7iv90yrrjbh31cyxhpr6hsynfmi23rlayn7p2f6ki5az7yc3";
   };
 
+  patches = [
+    # fixes build with Qt 5.14
+    # source: https://github.com/quassel/quassel/pull/518/commits/8a46d983fc99204711cdff1e4c542e272fef45b9
+    ./0001-common-Disable-enum-type-stream-operators-for-Qt-5.1.patch
+  ];
+
   enableParallelBuilding = true;
 
   # Prevent ``undefined reference to `qt_version_tag''' in SSL check