From a71b77433ccf313086f326e72bb7055d94dec3d2 Mon Sep 17 00:00:00 2001
From: Dana Robinson <derobins@hdfgroup.org>
Date: Mon, 17 Dec 2018 14:33:33 -0800
Subject: Fixed an issue in the passthru Windows va_copy hack.

---
 src/H5VLpassthru.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/src/H5VLpassthru.c b/src/H5VLpassthru.c
index bf81425..82c18af 100644
--- a/src/H5VLpassthru.c
+++ b/src/H5VLpassthru.c
@@ -42,9 +42,9 @@
 /* #define ENABLE_PASSTHRU_LOGGING */
 
 /* Windows missing va_copy() hack (from H5win2_defs.h) */
-#if (_MSC_VER < 1800)
+#if defined(_WIN32) && (_MSC_VER < 1800)
 #define va_copy(D,S)      ((D) = (S))
-#endif /* MSC_VER < 1800 */
+#endif /* defined(_WIN32) && (_MSC_VER < 1800) */
 
 /************/
 /* Typedefs */
-- 
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