UBUNTU: [Packaging] tests -- reduce rebuild test to one flavour

BugLink: http://bugs.launchpad.net/bugs/1705495Signed-off-by: Andy Whitcroft <apw@canonical.com>
Acked-by: Stefan Bader <stefan.bader@canonical.com>
Acked-by: Marcelo Cerri <marcelo.cerri@canonical.com>
Signed-off-by: Kleber Sacilotto de Souza <kleber.souza@canonical.com>

debian/rules

@@ -79,7 +79,7 @@ do_any_tools=$(sort $(filter-out false,$(do_linux_tools) $(do_cloud_tools)))
 
 # autopkgtest -- rebuild support
 #  only build the first flavour on the assumption it is representative
-ifeq ($(DEB_BUILD_PROFILE),autopkgtest)
+ifneq ($(filter autopkgtest,$(DEB_BUILD_PROFILES)),)
 flavours := $(firstword $(flavours))
 endif
 

debian/tests/rebuild

@@ -17,4 +17,4 @@ if [ "$build_needed" -eq 0 ]; then
 fi
 
 set -e
-dpkg-buildpackage -rfakeroot -us -uc -b
+dpkg-buildpackage -rfakeroot -us -uc -b -Pautopkgtest