+# if !defined(_WIN32_WCE) && !defined(_WIN32_WINNT)
+ /*
+ * Defining _WIN32_WINNT here in e_os.h implies certain "discipline."
+ * Most notably we ought to check for availability of each specific
+ * routine with GetProcAddress() and/or quard NT-specific calls with
+ * GetVersion() < 0x80000000. One can argue that in latter "or" case
+ * we ought to /DELAYLOAD some .DLLs in order to protect ourselves
+ * against run-time link errors. This doesn't seem to be necessary,
+ * because it turned out that already Windows 95, first non-NT Win32
+ * implementation, is equipped with at least NT 3.51 stubs, dummy
+ * routines with same name, but which do nothing. Meaning that it's
+ * apparently appropriate to guard generic NT calls with GetVersion
+ * alone, while NT 4.0 and above calls ought to be additionally
+ * checked upon with GetProcAddress.
+ */
+# define _WIN32_WINNT 0x0400
+# endif