From 80a83a8f6aebd4c5f0d2a21bfbfe5d7cffd1fc9b Mon Sep 17 00:00:00 2001
From: Mike Frysinger <vapier@gentoo.org>
Date: Thu, 25 Jan 2024 01:51:49 -0500
Subject: [PATCH] sanitizer: fix feature tests under clang

While gcc defines __SANITIZE_ADDRESS__, clang requires more verbose
tests.  Add them to make the cleanup/security logic work correctly.

Signed-off-by: Mike Frysinger <vapier@gentoo.org>
---
 porting.h | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/porting.h b/porting.h
index 103d268..6c0da01 100644
--- a/porting.h
+++ b/porting.h
@@ -74,6 +74,13 @@
 #endif
 
 #undef PAX_UTILS_CLEANUP
+#ifndef __SANITIZE_ADDRESS__
+# ifdef __has_feature
+#  if __has_feature (address_sanitizer)
+#   define __SANITIZE_ADDRESS__ 1
+#  endif
+# endif
+#endif
 /* LSAN (Leak Sanitizer) will complain about things we leak. */
 #ifdef __SANITIZE_ADDRESS__
 # define PAX_UTILS_CLEANUP 1