debian: Upgrade to debhelper 9 (and dpkg-buildflags)

This gives us some more hardening, amongst other things.

3 files changed, 4 insertions, 4 deletions

diff --git a/debian/compat b/debian/compat
index 7f8f011e..ec635144 100644
--- a/debian/compat
+++ b/debian/compat
@@ -1 +1 @@
-7
+9
diff --git a/debian/control b/debian/control
index 55837ac5..e79b58ce 100644
--- a/debian/control
+++ b/debian/control
@@ -8,7 +8,7 @@ XS-Python-Version: >= 2.6
 X-Python3-Version: >= 3.1
 Build-Depends: apt (>= 0.9.6),
                apt-utils,
-               debhelper (>= 7.3.5),
+               debhelper (>= 9),
                fakeroot,
                libapt-pkg-dev (>= 0.8.11),
                python-all-dev (>= 2.6.6-3~),
diff --git a/debian/rules b/debian/rules
index b2da3003..4a33c533 100755
--- a/debian/rules
+++ b/debian/rules
@@ -1,12 +1,12 @@
 #!/usr/bin/make -f
 # Should be include-links, but that somehow fails.
 export DEBVER=$(shell dpkg-parsechangelog | sed -n -e 's/^Version: //p')
-export CFLAGS=-Wno-write-strings
+export DEB_CFLAGS_MAINT_APPEND=-Wno-write-strings
 export PATH := $(CURDIR)/utils:$(PATH)
 export pyversions := $(CURDIR)/utils/pyversions
 
 %:
-	dh --with python2,python3 $@
+	dh $@ --with python2,python3
 
 override_dh_auto_build:
 	dh_auto_build