qtdeclarative: unset QML2_IMPORT_PATH after loading

pkgs/development/libraries/qt-5/5.5/qtdeclarative/0001-nix-profiles-import-paths.patch

@@ -1,37 +0,0 @@
-From 3f6fa74067aacd0e595e45b4ef7ce754514cb205 Mon Sep 17 00:00:00 2001
-From: Thomas Tuegel <ttuegel@gmail.com>
-Date: Sat, 17 Oct 2015 09:28:18 -0500
-Subject: [PATCH] nix profiles import paths
-
----
- src/qml/qml/qqmlimport.cpp | 14 ++++++++++++++
- 1 file changed, 14 insertions(+)
-
-diff --git a/src/qml/qml/qqmlimport.cpp b/src/qml/qml/qqmlimport.cpp
-index 5a54609..f33c2f9 100644
---- a/src/qml/qml/qqmlimport.cpp
-+++ b/src/qml/qml/qqmlimport.cpp
-@@ -1549,6 +1549,20 @@ QQmlImportDatabase::QQmlImportDatabase(QQmlEngine *e)
-     QString installImportsPath =  QLibraryInfo::location(QLibraryInfo::Qml2ImportsPath);
-     addImportPath(installImportsPath);
- 
-+    // Add import paths derived from NIX_PROFILES.
-+    const QByteArray nixProfilesEnv = qgetenv("NIX_PROFILES");
-+    if (!nixProfilesEnv.isEmpty()) {
-+        QLatin1Char pathSep(' ');
-+        QStringList paths = QFile::decodeName(nixProfilesEnv).split(pathSep, QString::SkipEmptyParts);
-+        for (QStringList::iterator it = paths.begin(); it != paths.end(); ++it) {
-+            it->append("/lib/qt5/qml");
-+            QString canonicalPath = QDir(*it).canonicalPath();
-+            if (!canonicalPath.isEmpty()) {
-+                addImportPath(canonicalPath);
-+            }
-+        }
-+    }
-+
-     // env import paths
-     QByteArray envImportPath = qgetenv("QML2_IMPORT_PATH");
-     if (!envImportPath.isEmpty()) {
--- 
-2.5.2
-

pkgs/development/libraries/qt-5/5.5/qtdeclarative/default.nix

@@ -1,8 +1,8 @@
-{ qtSubmodule, python, qtbase, qtsvg, qtxmlpatterns }:
+{ qtSubmodule, lib, copyPathsToStore, python, qtbase, qtsvg, qtxmlpatterns }:
 
 qtSubmodule {
   name = "qtdeclarative";
-  patches = [ ./0001-nix-profiles-import-paths.patch ];
+  patches = copyPathsToStore (lib.readPathsFromFile ./. ./series);
   qtInputs = [ qtbase qtsvg qtxmlpatterns ];
   nativeBuildInputs = [ python ];
 }

pkgs/development/libraries/qt-5/5.5/qtdeclarative/series

@@ -0,0 +1 @@
+nix-profiles-import-paths.patch