diff --git a/SConstruct b/SConstruct
index e38511152..c2c9f3a4c 100644
--- a/SConstruct
+++ b/SConstruct
@@ -28,6 +28,7 @@ CUSTOPTIONSFILE  = 'custom-options'
 SRCDIR           = 'src'
 BINDIR           = 'bin'
 LIBDIR           = '.libs'
+PLUGDIR          = '.libs'
 TESTDIR          = 'tests'
 ICONDIR          = 'icons'
 VERSION          = '0.1+pre.01'
@@ -74,6 +75,7 @@ def setupBasicEnvironment():
                , SRCDIR=SRCDIR
                , BINDIR=BINDIR
                , LIBDIR=LIBDIR
+               , PLUGDIR=PLUGDIR
                , ICONDIR=ICONDIR
                , CPPPATH=["#"+SRCDIR]   # used to find includes, "#" means always absolute to build-root
                , CPPDEFINES=['-DLUMIERA_VERSION='+VERSION ]     # note: it's a list to append further defines
@@ -336,12 +338,15 @@ def defineBuildTargets(env, artifacts):
     artifacts['lumiera'] = env.Program('$BINDIR/lumiera', ['$SRCDIR/lumiera/main.cpp'], LIBS=core)
     artifacts['corelib'] = core
     
-    
+    # building Lumiera Plugins
+    envPlu = env.Clone()
+    envPlu.Append(CPPDEFINES='LUMIERA_PLUGIN')
     artifacts['plugins'] = [] # currently none 
     
     
     # the Lumiera GTK GUI
-    envgtk  = env.Clone().mergeConf(['gtkmm-2.4','cairomm-1.0','gdl-1.0','librsvg-2.0','xv','xext','sm'])
+    envgtk = env.Clone()
+    envgtk.mergeConf(['gtkmm-2.4','cairomm-1.0','gdl-1.0','librsvg-2.0','xv','xext','sm'])
     envgtk.Append(CPPDEFINES='LUMIERA_PLUGIN', LIBS=core)
     objgui  = srcSubtree(envgtk,'$SRCDIR/gui')
     
@@ -362,7 +367,7 @@ def defineBuildTargets(env, artifacts):
     # call subdir SConscript(s) for independent components
     SConscript(dirs=[SRCDIR+'/tool'], exports='env artifacts core')
     SConscript(dirs=['admin'], exports='env envgtk artifacts core')
-    SConscript(dirs=[TESTDIR], exports='env artifacts core')
+    SConscript(dirs=[TESTDIR], exports='env envPlu artifacts core')
 
 
 
diff --git a/admin/scons/Buildhelper.py b/admin/scons/Buildhelper.py
index cfde75994..159dc4721 100644
--- a/admin/scons/Buildhelper.py
+++ b/admin/scons/Buildhelper.py
@@ -151,7 +151,7 @@ def createPlugins(env, dir):
     """ investigate the given source directory to identify all contained source trees.
         @return: a list of build nodes defining a plugin for each of these source trees.
     """
-    return [env.LoadableModule( '$PLUGDIR/%s' % getDirname(tree) 
+    return [env.LoadableModule( '#$PLUGDIR/%s' % getDirname(tree) 
                               , srcSubtree(env, tree)
                               , SHLIBPREFIX='', SHLIBSUFFIX='.lum'
                               )
diff --git a/tests/SConscript b/tests/SConscript
index a6a4457cd..e914ca001 100644
--- a/tests/SConscript
+++ b/tests/SConscript
@@ -8,12 +8,15 @@ from os import path
 from Buildhelper import srcSubtree
 from Buildhelper import scanSubtree
 from Buildhelper import globRootdirs
+from Buildhelper import createPlugins
 
-Import('env','artifacts','core')
+Import('env','envPlu','artifacts','core')
 
 # temp fix to add test.h  -- wouldn't it be better to put this header be into src/lib ?  
 env = env.Clone()
 env.Append(CPPPATH='#/.')  # add Rootdir to Includepath, so test/test.h is found
+envPlu = envPlu.Clone()
+envPlu.Append(CPPPATH='#/.')
 # temp fix------------- 
 
 def testExecutable(env,tree, exeName=None, obj=None):
@@ -43,39 +46,18 @@ def testCollection(env,dir):
     return [buildIt(f) for f in scanSubtree(dir,srcpatt)] 
 
 
-def treatPluginTestcase(env):
-    """ Special case: the test-plugin executable
-    """
-    tree = 'plugin'
-    env = env.Clone()
-    env.Append(CPPPATH=tree, CPPDEFINES='LUMIERA_PLUGIN')
-    prfx = path.join(tree,'example_plugin')
-    oC   = env.SharedObject(prfx,        prfx+'.c')
-    oCPP = env.SharedObject(prfx+'_cpp', prfx+'.cpp')
-    testplugin = ( env.LoadableModule('#$LIBDIR/examplepluginc',    oC, SHLIBPREFIX='')
-#                + env.SharedLibrary('#$LIBDIR/exampleplugincpp', oCPP, SHLIBPREFIX='')
-# doesn't compile yet...
-                 )
-    
-    return testplugin
-        #-- it depends (at the moment) on a specific isolated test-plugin,
-        #   which is not integrated in the "normal procedure" for building Plugins
-        #   (which is not yet implemented as of 8/07)
-        #   TODO: handle this case automatically
 
 
-# 
-# build a Test-Executable out of every subdir...
-moduledirs = globRootdirs('*')
 
 # but have to treat some subdirs individually.
 specials = ['plugin','lib','components']
+moduledirs = globRootdirs('*')
 
 
 
 artifacts['testsuite'] = ts = ( [ testExecutable(env, dir) for dir in ['lib','components'] ] 
-                              + treatPluginTestcase(env)
                               + [ testCollection(env, dir) for dir in moduledirs if not dir in specials]
+                              + createPlugins(envPlu, 'plugin')
                               )