File fix-ppc64.patch of Package Vrui

diff -Nur Vrui-3.1-004/BuildRoot/SystemDefinitions new/BuildRoot/SystemDefinitions
--- Vrui-3.1-004/BuildRoot/SystemDefinitions	2013-12-14 05:28:27.000000000 +0100
+++ new/BuildRoot/SystemDefinitions	2016-06-26 16:08:50.378208878 +0200
@@ -107,6 +107,10 @@
     # Set different object and executable file paths for mixed architectures (disabled for now):
     # OBJDIRBASE := $(OBJDIRBASE)/64
     # EXEDIRBASE := $(EXEDIRBASE)/64
+  else
+    ifeq ($(HOST_ARCH),ppc64)
+      LIBEXT := lib64
+    endif
   endif
   SYSTEM_HAVE_SPINLOCKS = 1
   SYSTEM_CAN_CANCEL_THREADS = 1