Issue #27453: CPP invocation in configure must use CPPFLAGS.
Patch by Chi Hsuan Yen.
diff --git a/Misc/ACKS b/Misc/ACKS
index a4a4cdc..150d37a 100644
--- a/Misc/ACKS
+++ b/Misc/ACKS
@@ -1663,3 +1663,4 @@
 Doug Zongker
 Peter Åstrand
 evilzero
+Chi Hsuan Yen
diff --git a/Misc/NEWS b/Misc/NEWS
index 243f126..6b2b419 100644
--- a/Misc/NEWS
+++ b/Misc/NEWS
@@ -145,6 +145,9 @@
 Build
 -----
 
+- Issue #27453: CPP invocation in configure must use CPPFLAGS. Patch by
+  Chi Hsuan Yen.
+
 - Issue #27490: Do not build pgen when cross-compiling.  Patch by Thomas
   Perl.