Index: libcfa/src/concurrency/io/call.cfa.in
===================================================================
--- libcfa/src/concurrency/io/call.cfa.in	(revision 0e52f140655799377d6885c12ca7bdc72f7c3d11)
+++ libcfa/src/concurrency/io/call.cfa.in	(revision ace2e92e8bfa195e3c33c31711a82c7ac67e8700)
@@ -109,9 +109,9 @@
 	#include <sys/syscall.h>
 
-#if defined(HAVE_PREADV2)
+#if defined(CFA_HAVE_PREADV2)
 	struct iovec;
 	extern ssize_t preadv2 (int fd, const struct iovec *iov, int iovcnt, off_t offset, int flags);
 #endif
-#if defined(HAVE_PWRITEV2)
+#if defined(CFA_HAVE_PWRITEV2)
 	struct iovec;
 	extern ssize_t pwritev2(int fd, const struct iovec *iov, int iovcnt, off_t offset, int flags);