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-rw-r--r--Include/pymath.h4
1 files changed, 4 insertions, 0 deletions
diff --git a/Include/pymath.h b/Include/pymath.h
index 8872e8a..816691a 100644
--- a/Include/pymath.h
+++ b/Include/pymath.h
@@ -22,6 +22,10 @@ functions and constants
extern double copysign(double, double);
#endif
+#ifndef HAVE_ROUND
+extern double round(double);
+#endif
+
#ifndef HAVE_ACOSH
extern double acosh(double);
#endif