From 20d7486abee00a45066883e59d1fc167e7990fcc Mon Sep 17 00:00:00 2001
From: rnv <rnv@opencascade.com>
Date: Thu, 7 May 2020 17:14:56 +0300
Subject: [PATCH] Fix the problem with saving a file with several meshes under
 Windows.

---
 src/MEDWrapper/MED_Wrapper.cxx | 21 +++++++++++++++++++++
 1 file changed, 21 insertions(+)

diff --git a/src/MEDWrapper/MED_Wrapper.cxx b/src/MEDWrapper/MED_Wrapper.cxx
index 7a7e968a8..81d3ba9ec 100644
--- a/src/MEDWrapper/MED_Wrapper.cxx
+++ b/src/MEDWrapper/MED_Wrapper.cxx
@@ -28,6 +28,10 @@
 #include <med_err.h>
 #include <med_proto.h>
 
+#ifdef WIN32
+#include <windows.h>
+#endif
+
 #include <boost/version.hpp>
 
 #ifdef _DEBUG_
@@ -100,6 +104,23 @@ namespace MED
     {
       if (myCount++ == 0) {
         const char* aFileName = myFileName.c_str();
+#ifdef WIN32
+		if (med_access_mode(theMode) == MED_ACC_RDWR) {
+			// Force removing readonly attribute from a file under Windows, because of a bug in the HDF5
+			std::string aReadOlnyRmCmd = "attrib -r \"" + myFileName + "\"> nul 2>&1";
+#ifdef UNICODE
+			const char* to_decode = aReadOlnyRmCmd.c_str();
+			int size_needed = MultiByteToWideChar(CP_UTF8, 0, to_decode, strlen(to_decode), NULL, 0);
+			wchar_t* awReadOlnyRmCmd = new wchar_t[size_needed + 1];
+			MultiByteToWideChar(CP_UTF8, 0, to_decode, strlen(to_decode), awReadOlnyRmCmd, size_needed);
+			awReadOlnyRmCmd[size_needed] = '\0';
+			_wsystem(awReadOlnyRmCmd);
+			delete[] awReadOlnyRmCmd;
+#else  
+			system(aReadOlnyRmCmd.c_str());
+#endif
+		}
+#endif
         myFid = MEDfileVersionOpen(aFileName,med_access_mode(theMode), myMajor, myMinor, MED_RELEASE_NUM);
       }
       if (theErr)
-- 
2.39.2