sconsUtils-AddressSanitizer

diff --git a/python/lsst/sconsUtils/builders.py b/python/lsst/sconsUtils/builders.py
index a14e150..02ad96c 100644
--- a/python/lsst/sconsUtils/builders.py
+++ b/python/lsst/sconsUtils/builders.py
@@ -22,7 +22,7 @@ def SharedLibraryIncomplete(self, target, source, **keywords):
     """
     myenv = self.Clone()
     if myenv['PLATFORM'] == 'darwin':
-        myenv['SHLINKFLAGS'] += ["-undefined", "suppress", "-flat_namespace", "-headerpad_max_install_names"]
+        myenv['SHLINKFLAGS'] += ["-undefined", "suppress", "-flat_namespace", "-headerpad_max_install_names", "-fsanitize=address", "-shared-libasan"]
     return myenv.SharedLibrary(target, source, **keywords)
 
 
@@ -35,7 +35,9 @@ def Pybind11LoadableModule(self, target, source, **keywords):
     myenv.Append(CCFLAGS=["-fvisibility=hidden"])
     if myenv['PLATFORM'] == 'darwin':
         myenv.Append(LDMODULEFLAGS=["-undefined", "suppress",
-                                    "-flat_namespace", "-headerpad_max_install_names"])
+                                    "-flat_namespace",
+                                    "-headerpad_max_install_names",
+                                    "-fsanitize=address", "-shared-libasan"])
     return myenv.LoadableModule(target, source, **keywords)
 
 
diff --git a/python/lsst/sconsUtils/state.py b/python/lsst/sconsUtils/state.py
index d60b380..09e3c06 100644
--- a/python/lsst/sconsUtils/state.py
+++ b/python/lsst/sconsUtils/state.py
@@ -184,6 +184,9 @@ def _initEnvironment():
             env.Append(SHLINKFLAGS=["-install_name", "${TARGET.file}"])
         if not re.search(r"-headerpad_max_install_names", str(env['SHLINKFLAGS'])):
             env.Append(SHLINKFLAGS=["-Wl,-headerpad_max_install_names"])
+
+        env.Append(SHLINKFLAGS=["-fsanitize=address", "-shared-libasan"])
+
         #
         # We want to be explicit about the OS X version we're targeting
         #
@@ -214,6 +217,8 @@ def _initEnvironment():
 
     if env['debug']:
         env.Append(CCFLAGS=['-g'])
+    env.Append(CCFLAGS=['-fsanitize=address'])
+    env.Append(CCFLAGS=['-shared-libasan'])
 
     #
     # determine if EUPS is present