Index: libcfa/src/concurrency/io/setup.cfa
===================================================================
--- libcfa/src/concurrency/io/setup.cfa	(revision 8c43d057d111f2fcf5e0f249ebd90796a8a2fa2d)
+++ libcfa/src/concurrency/io/setup.cfa	(revision b7664a03b4e118c5734563ea5302574752b6a3b4)
@@ -42,4 +42,7 @@
 	void ^?{}(io_context & this, bool cluster_context) {}
 
+	void register_fixed_files( io_context &, int *, unsigned ) {}
+	void register_fixed_files( cluster    &, int *, unsigned ) {}
+
 #else
 	#include <errno.h>
Index: libcfa/src/concurrency/stats.hfa
===================================================================
--- libcfa/src/concurrency/stats.hfa	(revision 8c43d057d111f2fcf5e0f249ebd90796a8a2fa2d)
+++ libcfa/src/concurrency/stats.hfa	(revision b7664a03b4e118c5734563ea5302574752b6a3b4)
@@ -2,4 +2,9 @@
 
 #include <stdint.h>
+
+enum {
+	CFA_STATS_READY_Q  = 0x01,
+	CFA_STATS_IO = 0x02,
+};
 
 #if defined(__CFA_NO_STATISTICS__)
@@ -9,10 +14,4 @@
 	static inline void __print_stats( struct __stats_t *, int, const char *, const char *, void * ) {}
 #else
-	enum {
-		CFA_STATS_READY_Q  = 0x01,
-		#if defined(CFA_HAVE_LINUX_IO_URING_H)
-			CFA_STATS_IO = 0x02,
-		#endif
-	};
 
 	struct __attribute__((aligned(64))) __stats_readQ_t {
Index: libcfa/src/parseargs.cfa
===================================================================
--- libcfa/src/parseargs.cfa	(revision 8c43d057d111f2fcf5e0f249ebd90796a8a2fa2d)
+++ libcfa/src/parseargs.cfa	(revision b7664a03b4e118c5734563ea5302574752b6a3b4)
@@ -39,7 +39,7 @@
 			if( options[i].short_name != '\0'
 			&& options[i].short_name == options[j].short_name)
-				abort("Parse Args error: two options have short name '%c' (%d & %d)", options[i].short_name, i, j);
-
-			if(0 == strcmp(options[i].long_name, options[j].long_name)) abort("Parse Args error: two options have long name '%s' (%d & %d)", options[i].long_name, i, j);
+				abort("Parse Args error: two options have short name '%c' (%zu & %zu)", options[i].short_name, i, j);
+
+			if(0 == strcmp(options[i].long_name, options[j].long_name)) abort("Parse Args error: two options have long name '%s' (%zu & %zu)", options[i].long_name, i, j);
 		}
 	}