AC_PROG_CC
 
 if test "X$CC" = "Xgcc"; then
-    CFLAGS="$CFLAGS -Wextra -Wall -Werror -Wno-unused-parameter -Wno-deprecated-declarations -fstack-protector-all -fsanitize=address -U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=3"
+    CFLAGS="$CFLAGS -Wextra -Wall -Werror -Wno-unused-parameter -Wno-deprecated-declarations -fstack-protector-all $ASAN_FLAGS -U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=3"
 else if test "X$CC" = "Xclang"; then
-  CFLAGS="$CFLAGS -Wextra -Wall -Werror -Wno-unused-parameter -Wno-deprecated-declarations -Wformat -Wformat-security -fstack-protector-all -fsanitize=safe-stack -U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=2"
+  CFLAGS="$CFLAGS -Wextra -Wall -Werror -Wno-unused-parameter -Wno-deprecated-declarations -Wformat -Wformat-security -fstack-protector-all $ASAN_FLAGS -U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=2"
 fi; fi
 
 AC_PROG_MAKE_SET