diff --git a/packages/pynn-brainscales/package.py b/packages/pynn-brainscales/package.py
index be6caa45cd440a209c7cf7683abecd08ac3585fd..fe994334d8b37dcce3e5e35e8494d58748081d10 100644
--- a/packages/pynn-brainscales/package.py
+++ b/packages/pynn-brainscales/package.py
@@ -11,7 +11,7 @@ class PynnBrainscales(WafPackage):
     homepage = "https://github.com/electronicvisions/pynn-brainscales"
     git      = "https://github.com/electronicvisions/pynn-brainscales.git"
 
-    version('2.0-rc7', branch='waf')
+    version('2.0-rc8', branch='waf')
 
     # PPU compiler dependencies
     depends_on('oppulance@2.0:')
@@ -84,6 +84,7 @@ class PynnBrainscales(WafPackage):
 
         # llvm might be built with ~shared_libs but still builds shared libs
         if not any('llvm' in lib for lib in library):
+            print("libs: manually adding ", self.spec['llvm'].prefix.lib)
             library.append(self.spec['llvm'].prefix.lib)
 
         env.set('CPATH', ':'.join(include))
diff --git a/spack.yaml b/spack.yaml
index 3d28a810d9b1f78f79080b0abfeefcecbcbfe135..a54cfeffac28103674a1db90700baaf81e2be187 100644
--- a/spack.yaml
+++ b/spack.yaml
@@ -29,7 +29,7 @@ spack:
     - py-pyaescrypt
     - py-formencode
     - tvb-framework ^binutils+ld+gold
-    - pynn-brainscales@2.0-rc7 ^log4cxx@0.10.0 ^googletest@1.11.0:+gmock
+    - pynn-brainscales@2.0-rc8 ^log4cxx@0.10.0 ^googletest@1.11.0:+gmock
     #- hxtorch@2.0-rc6 ^log4cxx@0.10.0 ^googletest@1.11.0:+gmock
     - py-neo
     #- py-cerebstats