d/rules: Start using LTO

diff --git a/debian/rules b/debian/rules
index e801841e27763e0d0ba9b8c2400c0abd211197b9..84e018c23d163015c80adafb92867ab7a6042785 100755 (executable)
--- a/debian/rules
+++ b/debian/rules
@@ -2,7 +2,7 @@
 #export DH_VERBOSE=1
 
 # export DEB_BUILD_MAINT_OPTIONS = hardening=+pie
-export DEB_BUILD_MAINT_OPTIONS = hardening=+all
+export DEB_BUILD_MAINT_OPTIONS = hardening=+all optimize=+lto
 
 # needed for the tests
 export DCMDICTPATH=$(CURDIR)/dcmdata/data/dicom.dic