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-rw-r--r--Include/mymath.h6
1 files changed, 6 insertions, 0 deletions
diff --git a/Include/mymath.h b/Include/mymath.h
index 36ee1eb..13d32a6 100644
--- a/Include/mymath.h
+++ b/Include/mymath.h
@@ -14,3 +14,9 @@
#ifdef SYMANTEC__CFM68K__
#pragma lib_export on
#endif
+
+#if defined(HAVE_HYPOT)
+/* Defined in <math.h> */
+#else
+extern double hypot PROTO((double, double)); /* defined in mathmodule.c */
+#endif