debian/changelog

+orthanc-wsi (0.5-2) unstable; urgency=medium
+
+  * Set -DNDEBUG to disable assertion checking
+
+ -- Sebastien Jodogne <s.jodogne@gmail.com>  Fri, 27 Apr 2018 14:23:59 +0200
+
 orthanc-wsi (0.5-1) unstable; urgency=medium
 
   * New upstream version

debian/rules

@@ -6,6 +6,11 @@ export UPSTREAM_VERSION := $(shell echo "$(DEB_VERSION)" | cut -d '-' -f 1)
 export VIEWER_TARGET := libOrthancWSI.so
 export DEB_BUILD_MAINT_OPTIONS := hardening=+all
 
+# Disable assert() checking from upstream project, for best performance
+# https://lists.debian.org/debian-med/2018/04/msg00132.html
+export DEB_CFLAGS_MAINT_APPEND=-DNDEBUG
+export DEB_CXXFLAGS_MAINT_APPEND=-DNDEBUG
+
 %:
 	dh $@ --parallel