debian: enable build hardening features

[notmuch] / debian / rules

diff --git a/debian/rules b/debian/rules
index d056edb623944822730fcb7ca13ad40457e27daa..ebd1048170839dfc90aa75c789b1669af252bee2 100755 (executable)
--- a/debian/rules
+++ b/debian/rules
@@ -2,6 +2,8 @@
 
 python3_all = py3versions -s | xargs -n1 | xargs -t -I {} env {}
 
+export DEB_BUILD_MAINT_OPTIONS = hardening=+all
+
 %:
        dh $@ --with python2,python3,elpa