--- a/Win32OperatingSystem.st	Mon May 21 09:43:14 2018 +0200
+++ b/Win32OperatingSystem.st	Tue May 22 10:13:59 2018 +0200
@@ -6188,6 +6188,10 @@
      if you need to check for this, use #linkInfo:."
 
 %{
+#if defined(__BORLANDC__)
+  // missing in Borland header file
+# define INVALID_FILE_ATTRIBUTES -1
+#endif
     int ret;
 
     if (__isStringLike(aPathName)) {