Unbreak ppc builds with 4k *backend-page-bytes*

diff --git a/src/runtime/ppc-assem.S b/src/runtime/ppc-assem.S
index a9a4ed0..51b6b32 100644 (file)
--- a/src/runtime/ppc-assem.S
+++ b/src/runtime/ppc-assem.S
@@ -284,6 +284,9 @@ x:
 #if BACKEND_PAGE_BYTES == 65536
 # undef BACKEND_PAGE_BYTES
 # define BACKEND_PAGE_BYTES 65536
+#elif BACKEND_PAGE_BYTES == 4096
+# undef BACKEND_PAGE_BYTES
+# define BACKEND_PAGE_BYTES 4096
 #else
 # error BACKEND_PAGE_BYTES mismatch
 #endif