We already set some of these in the toolchain, and the rest may conflict
with flags the user can set (like -fcf-protection vs -mindirect-brnanch=thunk).
--- a/meson.build
+++ b/meson.build
@@ -30,9 +30,7 @@ project('leancrypto', 'c',
 cc = meson.get_compiler('c')
 
 # Hardening Compiler flags
-add_global_arguments([ '-fstack-protector-strong',
-		       '-fwrapv',
-		       '--param', 'ssp-buffer-size=4',
+add_global_arguments([ '-fwrapv',
 		       '-fvisibility=hidden',
 		       '-Wconversion',
 		       '-Wcast-align',
@@ -57,36 +55,14 @@ if cc.has_argument('-Wdocumentation')
 			     language: 'c')
 endif
 
-# More hardening
-if cc.has_argument('-fzero-call-used-regs=used-gpr')
-	add_global_arguments([ '-fzero-call-used-regs=used-gpr' ],
-			     language: 'c')
-endif
-if cc.has_argument('-ftrivial-auto-var-init=zero')
-	add_global_arguments([ '-ftrivial-auto-var-init=zero' ],
-			     language: 'c')
-endif
 if cc.has_argument('-Wshorten-64-to-32')
 	add_global_arguments([ '-Wshorten-64-to-32' ],
 			     language: 'c')
 endif
 
-# x86_64 hardening
-if cc.has_argument('-fcf-protection=full')
-	add_global_arguments([ '-fcf-protection=full' ],
-			     language: 'c')
-endif
-
-# ARM64 hardening
-if cc.has_argument('-mbranch-protection=standard')
-	add_global_arguments([ '-mbranch-protection=standard' ], language: 'c')
-endif
-
 if get_option('optimization') == '0'
 	add_global_arguments([ '-DDEBUG' ], language: 'c')
 elif get_option('efi').disabled()
-	add_global_arguments([ '-U_FORTIFY_SOURCE' ], language: 'c')
-	add_global_arguments([ '-D_FORTIFY_SOURCE=3' ], language: 'c')
 endif
 
 if get_option('enable_selftests').enabled()