--- thin-provisioning-tools-0.7.0-rc6.orig/block-cache/io_engine.h
+++ thin-provisioning-tools-0.7.0-rc6/block-cache/io_engine.h
@@ -10,6 +10,8 @@
 #include <libaio.h>
 #include <vector>
 
+#undef PAGE_SIZE
+
 //----------------------------------------------------------------
 
 namespace bcache {