diff -ruN perlkde-4.7.2.orig/CMakeLists.txt perlkde-4.7.2/CMakeLists.txt
--- perlkde-4.7.2.orig/CMakeLists.txt	2011-05-20 22:33:47.000000000 +0200
+++ perlkde-4.7.2/CMakeLists.txt	2011-10-19 21:54:21.839724784 +0200
@@ -37,7 +37,7 @@
 add_definitions(-DDEBUG)
 
 include (FindPerlMore)
-set(CUSTOM_PERL_SITE_ARCH_DIR ${PERL_SITE_ARCH_DIR} CACHE DIR "Custom installation directory for perl binary extension")
+set(CUSTOM_PERL_SITE_ARCH_DIR ${PERL_VENDOR_ARCH_DIR} CACHE DIR "Custom installation directory for perl binary extension")
 
 include_directories(${PERLQT_INCLUDE_DIR}/perlqt ${SMOKE_INCLUDE_DIR} ${KDE4_INCLUDES})