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-rw-r--r--src/H5private.h3
1 files changed, 3 insertions, 0 deletions
diff --git a/src/H5private.h b/src/H5private.h
index b3b8e97..f9e7aff 100644
--- a/src/H5private.h
+++ b/src/H5private.h
@@ -1068,6 +1068,9 @@ H5_DLL H5_ATTR_CONST int Nflock(int fd, int operation);
#ifndef HDlog
#define HDlog(X) log(X)
#endif
+#ifndef HDlog2
+#define HDlog2(X) log2(X)
+#endif
#ifndef HDlog10
#define HDlog10(X) log10(X)
#endif