Index: libcfa/src/bits/debug.cfa
===================================================================
--- libcfa/src/bits/debug.cfa	(revision c18bf9eddfe77cfd73d744125db1976f87600f71)
+++ libcfa/src/bits/debug.cfa	(revision 767a8efb6cd2f46125b4b2bf0c84393ab2eddcfd)
@@ -21,9 +21,12 @@
 #include <unistd.h>
 
+#include "bits/defs.hfa"
+
 enum { buffer_size = 4096 };
 static char buffer[ buffer_size ];
 
 extern "C" {
-	void __cfaabi_bits_write( int fd, const char in_buffer[], int len ) {
+	// would be cool to remove libcfa_public but it's needed for libcfathread
+	void __cfaabi_bits_write( int fd, const char in_buffer[], int len ) libcfa_public {
 		// ensure all data is written
 		for ( int count = 0, retcode; count < len; count += retcode ) {
@@ -44,5 +47,6 @@
 	void __cfaabi_bits_release() __attribute__((__weak__)) {}
 
-	int __cfaabi_bits_print_safe  ( int fd, const char fmt[], ... ) __attribute__(( format(printf, 2, 3) )) {
+	// would be cool to remove libcfa_public but it's needed for libcfathread
+	int __cfaabi_bits_print_safe  ( int fd, const char fmt[], ... ) __attribute__(( format(printf, 2, 3) )) libcfa_public {
 		va_list args;