backports: symlink identical files

Testing-done: built all backports in schroots and VMs

made files identical between different backports symlinks
to the ones for the more recent distribution, and updated
relevant tar invocations to follow symlinks.

Signed-off by: Silas McCroskey <smccroskey@cumulusnetworks.com>

debian/backports/rules

@@ -26,7 +26,7 @@ SOURCEFORMAT_$(1) ?= $(strip \
 	$(shell cat debian/backports/$(1)/debian/source/format))
 
 # files checked for the dirhash (see below)
-FINDCMD_$(1) = find debian/backports/$(1)/debian \
+FINDCMD_$(1) = find -L debian/backports/$(1)/debian \
 	-type f \
 	! -path debian/backports/$(1)/debian/changelog
 
@@ -44,7 +44,7 @@ EXCLUDEROOT_FIND_$(1) = $$(foreach file,$$(EXCLUDEROOT_$(1)),-o -path $$(file))
 
 # find command resulting in all files that *will* be pulled into the backport
 # tarball.
-FINDCMDROOT_$(1) = find debian/ \
+FINDCMDROOT_$(1) = find -L debian/ \
 	'(' -false $$(EXCLUDEROOT_FIND_$(1)) ')' -prune -o \
 	-type f -a '!' '(' -false $$(EXCLUDEROOT_FIND_$(1)) ')'
 
@@ -100,9 +100,9 @@ $(TARBALLDIR)/$(SRCPKG)_$$(DEBIAN_VERSION_$(1)).debian.tar.xz: \
 		$$(BACKPORTDIR_$(1))/$$(DIRHASHROOT_$(1)).root.dirhash \
 		$$(BACKPORTDIR_$(1))/exclude
 	rm -f $$(subst .tar.xz,.tar,$$@) $$@
-	tar -cf $$(subst .tar.xz,.tar,$$@) \
+	tar -chf $$(subst .tar.xz,.tar,$$@) \
 		--exclude-vcs $$(EXCLUDEROOT_TAR_$(1)) debian/
-	cd debian/backports/$(1) && tar -uf $$(subst .tar.xz,.tar,$$@) \
+	cd debian/backports/$(1) && tar -uhf $$(subst .tar.xz,.tar,$$@) \
 		--exclude-vcs debian/
 	xz $$(subst .tar.xz,.tar,$$@)
 

debian/backports/ubuntu12.04/debian/control

@@ -1,45 +0,0 @@
-Source: frr
-Section: net
-Priority: optional
-Maintainer: Nobody <nobody@freerangerouting.org>
-Uploaders: Nobody <nobody@freerangerouting.org>
-Build-Depends: debhelper (>= 7.0.50~), libncurses5-dev, libreadline-dev, texlive-latex-base, texlive-generic-recommended, libpam0g-dev | libpam-dev, libcap-dev, texinfo (>= 4.7), imagemagick, ghostscript, groff, po-debconf, autotools-dev, hardening-wrapper, libpcre3-dev, gawk, chrpath, libsnmp-dev, git, dh-autoreconf, libjson0, libjson0-dev, python-ipaddr, pkg-config
-Standards-Version: 3.9.6
-Homepage: http://www.freerangerouting.org/
-XS-Testsuite: autopkgtest
-
-Package: frr
-Architecture: any
-Depends: ${shlibs:Depends}, logrotate (>= 3.2-11), ${misc:Depends}
-Pre-Depends: adduser
-Conflicts: zebra, zebra-pj, quagga
-Replaces: zebra, zebra-pj, quagga
-Suggests: snmpd
-Description: BGP/OSPF/RIP/RIPng/ISIS/PIM/LDP routing daemon forked from Quagga
- FRR is free software which manages TCP/IP based routing protocols.
- It supports BGP4, BGP4+, OSPFv2, OSPFv3, IS-IS, RIPv1, RIPv2, RIPng,
- PIM and LDP as well as the IPv6 versions of these.
- .
- FRR is a fork of Quagga with an open community model. The main git
- lives on https://github.com/freerangerouting/frr.git
-
-Package: frr-dbg
-Architecture: any
-Depends: ${shlibs:Depends}, ${misc:Depends}, frr (= ${binary:Version})
-Priority: extra
-Section: debug
-Description: BGP/OSPF/RIP/RIPng/ISIS/PIM/LDP routing daemon forked from Quagga (debug symbols)
- This package provides debugging symbols for all binary packages built 
- from frr source package. It's highly recommended to have this package
- installed before reporting any FRR crashes to either FRR developers or 
- Debian package maintainers.
-
-Package: frr-doc
-Section: net
-Architecture: all
-Depends: ${misc:Depends}
-Suggests: frr
-Description: Documentation files for FRR
- This package includes info files for frr, a free software which manages
- TCP/IP based routing protocols.  It supports BGP4, BGP4+, OSPFv2, OSPFv3,
- IS-IS, RIPv1, RIPv2, RIPng, PIM and LDP as well as the IPv6 versions of these.

debian/backports/ubuntu12.04/debian/control

@@ -0,0 +1 @@
+../../ubuntu14.04/debian/control

debian/backports/ubuntu12.04/debian/frr.install

@@ -1,24 +0,0 @@
-etc/frr/
-usr/bin/vtysh
-usr/include/frr/
-usr/lib/
-tools/frr-reload.py usr/lib/frr/
-tools/frr etc/init.d/
-usr/share/doc/frr/
-usr/share/man/man1/vtysh.1
-usr/share/man/man1/frr.1
-usr/share/man/man8
-usr/share/man/man8/bgpd.8
-usr/share/man/man8/ospf6d.8
-usr/share/man/man8/ospfd.8
-usr/share/man/man8/ripd.8
-usr/share/man/man8/ripngd.8
-usr/share/man/man8/zebra.8
-usr/share/man/man8/isisd.8
-usr/share/man/man8/pimd.8
-usr/share/man/man8/ldpd.8
-usr/share/man/man8/watchfrr.8
-usr/share/snmp/mibs/
-cumulus/etc/* etc/
-tools/*.service    lib/systemd/system
-debian/frr.conf  usr/lib/tmpfiles.d

debian/backports/ubuntu12.04/debian/frr.install

@@ -0,0 +1 @@
+../../ubuntu14.04/debian/frr.install