nixpkgs/pkgs/development/libraries/kde-frameworks-5.10/kinit/0001-kinit-libpath.patch

From 723c9b1268a04127647a1c20eebe9804150566dd Mon Sep 17 00:00:00 2001
From: Thomas Tuegel <ttuegel@gmail.com>
Date: Sat, 13 Jun 2015 08:57:55 -0500
Subject: [PATCH] kinit libpath

---
 src/kdeinit/kinit.cpp | 18 ++++++++++--------
 1 file changed, 10 insertions(+), 8 deletions(-)

diff --git a/src/kdeinit/kinit.cpp b/src/kdeinit/kinit.cpp
index 9e775b6..0ac5646 100644
--- a/src/kdeinit/kinit.cpp
+++ b/src/kdeinit/kinit.cpp
@@ -660,15 +660,17 @@ static pid_t launch(int argc, const char *_name, const char *args,
         if (!libpath.isEmpty()) {
             if (!l.load()) {
                 if (libpath_relative) {
-                    // NB: Because Qt makes the actual dlopen() call, the
-                    //     RUNPATH of kdeinit is *not* respected - see
-                    //     https://sourceware.org/bugzilla/show_bug.cgi?id=13945
-                    //     - so we try hacking it in ourselves
-                    QString install_lib_dir = QFile::decodeName(
-                            CMAKE_INSTALL_PREFIX "/" LIB_INSTALL_DIR "/");
-                    libpath = install_lib_dir + libpath;
-                    l.setFileName(libpath);
+                  // Use QT_PLUGIN_PATH to find shared library directories
+                  // For KF5, the plugin path is /lib/qt5/plugins/, so kdeinit5
+                  // shared libraries should be in /lib/qt5/plugins/../../
+                  const QRegExp pathSepRegExp(QString::fromLatin1("[:\b]"));
+                  const QString up = QString::fromLocal8Bit("/../../");
+                  const QStringList paths = QString::fromLocal8Bit(qgetenv("QT_PLUGIN_PATH")).split(pathSepRegExp, QString::KeepEmptyParts);
+                  Q_FOREACH (const QString &path, paths) {
+                    l.setFileName(path + up + libpath);
                     l.load();
+                    if (l.isLoaded()) break;
+                  }
                 }
             }
             if (!l.isLoaded()) {
-- 
2.4.2