1 files changed, 2 insertions, 2 deletions

diff --git a/src/threading.c b/src/threading.c
index e6eb40e..5fcc39b 100644
--- a/src/threading.c
+++ b/src/threading.c
@@ -523,12 +523,13 @@ bool_t THREAD_WAIT_IMPL( THREAD_T *ref, double secs)
   //
   #include <errno.h>
 
-#       if defined(__MINGW32__) || defined(__MINGW64__)
+#       if ((defined(__MINGW32__) || defined(__MINGW64__)) && pthread_attr_setschedpolicy == ENOTSUP)
         // from the mingw-w64 team:
         // Well, we support pthread_setschedparam by which you can specify
         // threading-policy. Nevertheless, yes we lack this function. In
         // general its implementation is pretty much trivial, as on Win32 target
         // just SCHED_OTHER can be supported.
+        #undef pthread_attr_setschedpolicy
         static int pthread_attr_setschedpolicy( pthread_attr_t* attr, int policy)
         {
                 if( policy != SCHED_OTHER)
@@ -539,7 +540,6 @@ bool_t THREAD_WAIT_IMPL( THREAD_T *ref, double secs)
         }
 #       endif // defined(__MINGW32__) || defined(__MINGW64__)
 
-  //
   static void _PT_FAIL( int rc, const char *name, const char *file, uint_t line ) {
     const char *why= (rc==EINVAL) ? "EINVAL" : 
                      (rc==EBUSY) ? "EBUSY" :