--- /dev/null
+diff -Naur spca5xx-le/spca_core.c spca5xx-le-new/spca_core.c
+--- spca5xx-le/spca_core.c 2007-06-03 21:30:29.000000000 +0100
++++ spca5xx-le-new/spca_core.c 2008-01-06 12:48:08.000000000 +0000
+@@ -535,7 +535,7 @@
+
+ if (!pgd_none (*pgd))
+ {
+-#if PUD_SHIFT
++#ifdef PUD_SHIFT
+ pud_t *pud = pud_offset (pgd, adr);
+ if (!pud_none (*pud))
+ {
+@@ -552,7 +552,7 @@
+ ret = (unsigned long) page_address (pte_page (pte));
+ ret |= (adr & (PAGE_SIZE - 1));
+ }
+-#if PUD_SHIFT
++#ifdef PUD_SHIFT
+ }
+ #endif
+ }