Fix variables passed to kde4 applications

This resolves Bug 1366

CMakeLists.txt

@@ -82,6 +82,8 @@ OPTION( WITH_GAMIN "Enable FAM/GAMIN support" ${WITH_ALL_OPTIONS} )
 OPTION( WITH_ASPELL "Enable aspell support" OFF )
 OPTION( WITH_HSPELL "Enable hspell support" OFF )
 
+set( KDE4_DEFAULT_HOME ".kde" CACHE PATH "KDE4 home directory passed as KDEHOME to kde4 applications" )
+
 
 ##### set PKG_CONFIG_PATH #######################
 

config.h.cmake

@@ -707,6 +707,9 @@
 /* The compiled in system configuration prefix */
 #define KDESYSCONFDIR "@CONFIG_INSTALL_DIR@"
 
+/* The default KDE4 home directory */
+#define KDE4_DEFAULT_HOME "@KDE4_DEFAULT_HOME@"
+
 /* what C++ compiler was used for compilation */
 #define KDE_COMPILER_VERSION "@KDE_COMPILER_VERSION@"
 

kio/kio/kservice.cpp

@@ -198,7 +198,7 @@ KService::init( KDesktopFile *config )
 
   m_strExec = config->readPathEntry( "Exec" );
   if (kde4application && !m_strExec.startsWith("/")) {
-    m_strExec = "KDEHOME=$HOME/.trinity XDG_DATA_DIRS=/usr/share KDEDIRS=/usr/ XDG_CONFIG_DIRS=/etc/xdg/ PATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/usr/games:$PATH "+m_strExec;
+    m_strExec = "KDEHOME=$HOME/" KDE4_DEFAULT_HOME " XDG_DATA_DIRS=/usr/share KDEDIRS=/usr/ XDG_CONFIG_DIRS=/etc/xdg/ PATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/usr/games:$PATH "+m_strExec;
   } else if (config->readBoolEntry("X-KDE-SubstituteUID")) {
     int space = m_strExec.find(" ");
     if (space==-1)