Allow selection of sanitizer

configure

@@ -711,7 +711,7 @@ ac_subst_files=''
 ac_user_opts='
 enable_option_checking
 enable_analyzer
-enable_asan
+enable_sanitizer
 enable_apparmor
 enable_selinux
 enable_dbusproxy
@@ -1369,7 +1369,8 @@ Optional Features:
   --disable-FEATURE       do not include FEATURE (same as --enable-FEATURE=no)
   --enable-FEATURE[=ARG]  include FEATURE [ARG=yes]
   --enable-analyzer       enable GCC static analyzer
-  --enable-asan           enable address sanitizer
+  --enable-sanitizer=[address,memory,undefined]
+                          enable address/memory/undefined sanitizer (debug)
   --enable-apparmor       enable apparmor
   --enable-selinux        SELinux labeling support
   --disable-dbusproxy     disable dbus proxy
@@ -3296,15 +3297,52 @@ if test "x$enable_analyzer" = "xyes"; then :
 
 fi
 
-# Check whether --enable-asan was given.
-if test "${enable_asan+set}" = set; then :
-  enableval=$enable_asan;
+# Check whether --enable-sanitizer was given.
+if test "${enable_sanitizer+set}" = set; then :
+  enableval=$enable_sanitizer;
 fi
 
-if test "x$enable_asan" = "xyes"; then :
+if test "x$enable_sanitizer" = "xaddress" -o "x$enable_sanitizer" = "xmemory" -o "x$enable_sanitizer" = "xundefined"; then :
+  as_CACHEVAR=`$as_echo "ax_cv_check_cflags__-fsanitize=$enable_sanitizer" | $as_tr_sh`
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether C compiler accepts -fsanitize=$enable_sanitizer" >&5
+$as_echo_n "checking whether C compiler accepts -fsanitize=$enable_sanitizer... " >&6; }
+if eval \${$as_CACHEVAR+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+
+  ax_check_save_flags=$CFLAGS
+  CFLAGS="$CFLAGS  -fsanitize=$enable_sanitizer"
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+int
+main ()
+{
 
-	EXTRA_CFLAGS="$EXTRA_CFLAGS -fsanitize=address -fno-omit-frame-pointer"
-	EXTRA_LDFLAGS="$EXTRA_LDFLAGS -fsanitize=address"
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"; then :
+  eval "$as_CACHEVAR=yes"
+else
+  eval "$as_CACHEVAR=no"
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+  CFLAGS=$ax_check_save_flags
+fi
+eval ac_res=\$$as_CACHEVAR
+	       { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_res" >&5
+$as_echo "$ac_res" >&6; }
+if eval test \"x\$"$as_CACHEVAR"\" = x"yes"; then :
+
+		EXTRA_CFLAGS="$EXTRA_CFLAGS -fsanitize=$enable_sanitizer -fno-omit-frame-pointer"
+		EXTRA_LDFLAGS="$EXTRA_LDFLAGS -fsanitize=$enable_sanitizer"
+
+else
+  as_fn_error $? "$enable_sanitizer sanitizer not supported" "$LINENO" 5
+
+fi
 
 fi
 

configure.ac

@@ -45,12 +45,14 @@ AS_IF([test "x$enable_analyzer" = "xyes"], [
 	EXTRA_CFLAGS="$EXTRA_CFLAGS -fanalyzer -Wno-analyzer-malloc-leak"
 ])
 
-AC_ARG_ENABLE([asan],
-    AS_HELP_STRING([--enable-asan], [enable address sanitizer]))
-AS_IF([test "x$enable_asan" = "xyes"], [
-	EXTRA_CFLAGS="$EXTRA_CFLAGS -fsanitize=address -fno-omit-frame-pointer"
-	EXTRA_LDFLAGS="$EXTRA_LDFLAGS -fsanitize=address"
-])
+AC_ARG_ENABLE([sanitizer],
+    AS_HELP_STRING([--enable-sanitizer=@<:@address,memory,undefined@:>@], [enable address/memory/undefined sanitizer (debug)]))
+AS_IF([test "x$enable_sanitizer" = "xaddress" -o "x$enable_sanitizer" = "xmemory" -o "x$enable_sanitizer" = "xundefined"],
+	[AX_CHECK_COMPILE_FLAG([-fsanitize=$enable_sanitizer],[
+		EXTRA_CFLAGS="$EXTRA_CFLAGS -fsanitize=$enable_sanitizer -fno-omit-frame-pointer"
+		EXTRA_LDFLAGS="$EXTRA_LDFLAGS -fsanitize=$enable_sanitizer"
+],[AC_MSG_ERROR([$enable_sanitizer sanitizer not supported])]
+)])
 
 HAVE_APPARMOR=""
 AC_ARG_ENABLE([apparmor],