library: Port to Haiku.
diff --git a/library/timing.c b/library/timing.c
index 6a30e51..3e8139f 100644
--- a/library/timing.c
+++ b/library/timing.c
@@ -39,7 +39,8 @@
#if !defined(MBEDTLS_TIMING_ALT)
#if !defined(unix) && !defined(__unix__) && !defined(__unix) && \
- !defined(__APPLE__) && !defined(_WIN32) && !defined(__QNXNTO__)
+ !defined(__APPLE__) && !defined(_WIN32) && !defined(__QNXNTO__) && \
+ !defined(__HAIKU__)
#error "This module only works on Unix and Windows, see MBEDTLS_TIMING_C in config.h"
#endif