From c5ec0eb50f66f9379ac99e2c4ee4e5a9f6164e18 Mon Sep 17 00:00:00 2001
From: Igor Putovny <igor.putovny@nic.cz>
Date: Tue, 24 Oct 2023 13:46:28 +0200
Subject: [PATCH] Allow sanitization compiler option

---
 configure.ac | 12 ++++++++++++
 1 file changed, 12 insertions(+)

diff --git a/configure.ac b/configure.ac
index 27283782..973ca546 100644
--- a/configure.ac
+++ b/configure.ac
@@ -36,6 +36,12 @@ AC_ARG_ENABLE([memcheck],
   [enable_memcheck=yes]
 )
 
+AC_ARG_ENABLE([satan],
+  [AS_HELP_STRING([--enable-satan], [enable memory and undefined bahaviour sanitization @<:@no@:>@])],
+  [],
+  [enable_satan=no]
+)
+
 AC_ARG_ENABLE([compact-tries],
   [AS_HELP_STRING([--enable-compact-tries], [use 4-way tries instead of 16-way ones @<:@no@:>@])],
   [],
@@ -425,6 +431,12 @@ if test "$enable_debug" = yes ; then
   fi
 fi
 
+if test "$enable_satan" = yes; then
+  BIRD_CHECK_GCC_OPTION([bird_cv_c_option_satan_address], [-fsanitize=address], [])
+  BIRD_CHECK_GCC_OPTION([bird_cv_c_option_satan_undefined], [-fsanitize=undefined], [])
+  BIRD_CHECK_GCC_OPTION([bird_cv_c_option_satan_memory], [-fsanitize=memory], [])
+fi
+
 if test "$enable_compact_tries" = yes ; then
   AC_DEFINE([ENABLE_COMPACT_TRIES], [1], [Define to 1 if you want 4-way tries instead of 16-way ones.])
 fi