--- a/debian/rules	2020-05-19 10:51:28.911713243 +0100
--- b/debian/rules	2020-05-19 11:04:56.013555748 +0100
@@ -1,6 +1,7 @@
 #!/usr/bin/make -f
 
 export DEB_BUILD_MAINT_OPTIONS = hardening=+all
+export DEB_CPPFLAGS_MAINT_APPEND = -DOPTFLAGSTR=\"\"
 
 %:
 	dh $@