Enable hardening flags (by appending CPPFLAGS to C(XX)FLAGS).

debian/changelog

@@ -6,6 +6,7 @@ cmake (2.8.9~rc1-1) UNRELEASED; urgency=low
     - backport_module_no_soname.diff;
     - manpage_fixes.diff.
   * Drop cmake-{qt,curses}-gui.lintian-overrides, not needed with newer lintian.
+  * Enable hardening flags (by appending CPPFLAGS to C(XX)FLAGS).
 
  -- Modestas Vainius <modax@debian.org>  Wed, 27 Jun 2012 20:53:34 +0300
 

debian/rules

@@ -1,5 +1,8 @@
 #!/usr/bin/make -f
 
+export DEB_CPPFLAGS_MAINT_APPEND := $(shell dpkg-buildflags --get CPPFLAGS)
+export DEB_CFLAGS_MAINT_APPEND := $(shell dpkg-buildflags --get CPPFLAGS)
+
 ifneq (,$(filter parallel=%,$(DEB_BUILD_OPTIONS)))
     NUMJOBS = $(patsubst parallel=%,%,$(filter parallel=%,$(DEB_BUILD_OPTIONS)))
     BOOTSTRAP_PARALLEL = --parallel=$(NUMJOBS)