From 97f7a7cb4deacbc92a9dbdc1b9394e4e1358e47a Mon Sep 17 00:00:00 2001
From: Simon Tatham <anakin@pobox.com>
Date: Sat, 10 Apr 2021 14:46:36 +0100
Subject: [PATCH] Enforce that NDEBUG is not defined.

PuTTY is a security project, so assertions are important - if an
assumption is violated, proceeding anyway may have far worse
consequences than simple program termination. This check and #error
should arrange that we don't ever accidentally compile assertions out.
---
 defs.h | 11 +++++++++++
 1 file changed, 11 insertions(+)

diff --git a/defs.h b/defs.h
index 3ba43c4f..86f8edde 100644
--- a/defs.h
+++ b/defs.h
@@ -11,6 +11,17 @@
 #ifndef PUTTY_DEFS_H
 #define PUTTY_DEFS_H
 
+#ifdef NDEBUG
+/*
+ * PuTTY is a security project, so assertions are important - if an
+ * assumption is violated, proceeding anyway may have far worse
+ * consequences than simple program termination. This check and #error
+ * should arrange that we don't ever accidentally compile assertions
+ * out.
+ */
+#error Do not compile this code base with NDEBUG defined!
+#endif
+
 #include <stddef.h>
 #include <stdint.h>
 #include <stdio.h>                     /* for __MINGW_PRINTF_FORMAT */