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-rw-r--r--include/u.h3
1 files changed, 2 insertions, 1 deletions
diff --git a/include/u.h b/include/u.h
index 595f91d5..ba936960 100644
--- a/include/u.h
+++ b/include/u.h
@@ -54,11 +54,12 @@ typedef long p9jmp_buf[sizeof(sigjmp_buf)/sizeof(long)];
# define PLAN9PORT_USING_PTHREADS 1
#elif defined(__FreeBSD__)
# include <sys/types.h>
+# include <osreldate.h>
# if !defined(_POSIX_SOURCE)
# undef _NEEDUSHORT
# undef _NEEDUINT
# endif
-# if defined(__FreeBSD5__)
+# if __FreeBSD_version >= 500000
# define PLAN9PORT_USING_PTHREADS 1
# endif
#elif defined(__APPLE__)