Patch #794400: Let PYTHONSTARTUP influence the compiler flags.
diff --git a/Misc/NEWS b/Misc/NEWS
index 444231e..ecc242a 100644
--- a/Misc/NEWS
+++ b/Misc/NEWS
@@ -12,6 +12,8 @@
 Core and builtins
 -----------------
 
+- Compiler flags set in PYTHONSTARTUP are now active in __main__.
+
 - Added two builtin types, set() and frozenset().
 
 - Critical bugfix, for SF bug 840829:  if cyclic garbage collection