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-rw-r--r--src/time_ops.h12
1 files changed, 12 insertions, 0 deletions
diff --git a/src/time_ops.h b/src/time_ops.h
index 59ab1ee..057cd48 100644
--- a/src/time_ops.h
+++ b/src/time_ops.h
@@ -94,11 +94,23 @@
#endif
/* ops for nanosecs */
+#ifndef timespecisset
#define timespecisset(tvp) timerisset2(tvp,n)
+#endif
+#ifndef timespecclear
#define timespecclear(tvp) timerclear2(tvp, n)
+#endif
+#ifndef timespeccmp
#define timespeccmp(a, b, CMP) timercmp2(a, b, CMP, n)
+#endif
+#ifndef timespecadd
#define timespecadd(a, b, result) timeradd2(a, b, result, n)
+#endif
+#ifndef timespecsub
#define timespecsub(a, b, result) timersub2(a, b, result, n)
+#endif
+#ifndef timespecmul
#define timespecmul(a, c, result) timermul2(a, c, result, n)
+#endif
#endif