iox-#2150 Fix 'iox_open' for MinGW

iceoryx_platform/win/source/fnctl.cpp

@@ -14,22 +14,20 @@
 //
 // SPDX-License-Identifier: Apache-2.0
 
-#include <io.h>
-
 #include "iceoryx_platform/fcntl.hpp"
 #include "iceoryx_platform/handle_translator.hpp"
 #include "iceoryx_platform/win32_errorHandling.hpp"
 #include "iceoryx_platform/windows.hpp"
 
+#include <io.h>
+#include <share.h>
+#include <sys/stat.h>
+
 int iox_open(const char* pathname, int flags, mode_t mode)
 {
-#if defined(__GNUC__) || defined(__GNUG__)
-    return open(pathname, flags, mode);
-#elif defined(_MSC_VER)
     int fd;
     _sopen_s(&fd, pathname, flags, _SH_DENYNO, _S_IREAD | _S_IWRITE);
     return fd;
-#endif
 }
 
 int iox_ext_open(const char* pathname, int flags, mode_t mode)