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-rw-r--r--libs/zita-convolver/zita-convolver/zita-convolver.h2
1 files changed, 1 insertions, 1 deletions
diff --git a/libs/zita-convolver/zita-convolver/zita-convolver.h b/libs/zita-convolver/zita-convolver/zita-convolver.h
index 6c4859bce5..d804e31139 100644
--- a/libs/zita-convolver/zita-convolver/zita-convolver.h
+++ b/libs/zita-convolver/zita-convolver/zita-convolver.h
@@ -34,7 +34,7 @@ namespace ArdourZita {
#endif
/* note: mingw and msvc actually use PTW32's implementation of semaphores */
-#if defined(__linux__) || defined(__GNU__) || defined(__FreeBSD__) || defined(__FreeBSD_kernel__) || defined(PTW32_VERSION)
+#if defined(__linux__) || defined(__GNU__) || defined(__FreeBSD__) || defined(__FreeBSD_kernel__) || defined(PTW32_VERSION) || defined (__WINPTHREADS_VERSION)
#include <semaphore.h>