From 6efe4e2841d710a7b3db44a9264fc8c2f52f1990 Mon Sep 17 00:00:00 2001
From: Turo Lamminen <turotl@gmail.com>
Date: Sat, 7 Oct 2017 17:13:08 +0300
Subject: [PATCH] CMake: Add support for Undefined Behavior sanitizer

---
 CMakeLists.txt | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/CMakeLists.txt b/CMakeLists.txt
index c30278b7f..bc3731bbb 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -86,6 +86,10 @@ OPTION ( ASSIMP_ASAN
   "Enable AddressSanitizer."
   OFF
 )
+OPTION ( ASSIMP_UBSAN
+  "Enable Undefined Behavior sanitizer."
+  OFF
+)
 OPTION ( SYSTEM_IRRXML
   "Use system installed Irrlicht/IrrXML library."
   OFF
@@ -234,6 +238,12 @@ if (ASSIMP_ASAN)
     SET(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -fsanitize=address")
 endif()
 
+if (ASSIMP_UBSAN)
+    MESSAGE(STATUS "Undefined Behavior sanitizer enabled")
+    SET(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -fsanitize=undefined -fno-sanitize-recover=all")
+    SET(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -fsanitize=undefined -fno-sanitize-recover=all")
+endif()
+
 INCLUDE (FindPkgMacros)
 INCLUDE (PrecompiledHeader)