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-rw-r--r--docker/Dockerfile-dhvirtualenv5
-rw-r--r--docker/build_debian.sh3
2 files changed, 7 insertions, 1 deletions
diff --git a/docker/Dockerfile-dhvirtualenv b/docker/Dockerfile-dhvirtualenv
index 0117ab8bcc..ac9ebcfd88 100644
--- a/docker/Dockerfile-dhvirtualenv
+++ b/docker/Dockerfile-dhvirtualenv
@@ -42,6 +42,11 @@ RUN cd dh-virtualenv-1.1 && dpkg-buildpackage -us -uc -b
 ###
 FROM ${distro}
 
+# Get the distro we want to pull from as a dynamic build variable
+# (We need to define it in each build stage)
+ARG distro=""
+ENV distro ${distro}
+
 # Install the build dependencies
 #
 # NB: keep this list in sync with the list of build-deps in debian/control
diff --git a/docker/build_debian.sh b/docker/build_debian.sh
index 6ed2b39898..f312f0715f 100644
--- a/docker/build_debian.sh
+++ b/docker/build_debian.sh
@@ -4,7 +4,8 @@
 
 set -ex
 
-DIST=`lsb_release -c -s`
+# Get the codename from distro env
+DIST=`cut -d ':' -f2 <<< $distro`
 
 # we get a read-only copy of the source: make a writeable copy
 cp -aT /synapse/source /synapse/build