--- tpm2.0-tools-2.0.0/configure.ac.fix	2017-06-02 09:15:49.118425187 +0200
+++ tpm2.0-tools-2.0.0/configure.ac	2017-06-02 09:15:59.698416673 +0200
@@ -100,11 +100,9 @@
 
   add_hardened_c_flag([-Wformat])
   add_hardened_c_flag([-Wformat-security])
-  add_hardened_c_flag([-Wstack-protector])
   add_hardened_c_flag([-fstack-protector-all])
 
   add_hardened_define_flag([-D_FORTIFY_SOURCE=2])
-  add_hardened_define_flag([-U_FORTIFY_SOURCE])
 
   add_hardened_c_flag([-fPIC])
   add_hardened_ld_flag([[-shared]])