debian: set VERSION to fix version in .pc files

The pkgconf file contains an unknown version which result in failure
of other packages which depend on a minimum version (osmo-iuh)

Change-Id: I65401786cf9eb63d3445f548dc13c1d3f9f4c1ea
diff --git a/debian/rules b/debian/rules
index 267bea9..a1039b0 100755
--- a/debian/rules
+++ b/debian/rules
@@ -32,7 +32,10 @@
 # Vendor-related variables such as DEB_VENDOR:
 #include /usr/share/dpkg/vendor.mk
 # Package-related variables such as DEB_DISTRIBUTION
-#include /usr/share/dpkg/pkg-info.mk
+include /usr/share/dpkg/pkg-info.mk
+
+VERSION := $(shell echo '$(DEB_VERSION)' | sed -e 's/[+-].*//' -e 's/~//g')
+
 #
 # You may alternatively set them susing a simple script such as:
 # DEB_VENDOR ?= $(shell dpkg-vendor --query  Vendor)
@@ -44,6 +47,10 @@
 %:
 	dh $@ --with autoreconf
 
+override_dh_autoreconf:
+	echo $(VERSION) > .tarball-version
+	dh_autoreconf
+
 # debmake generated override targets
 # Set options for ./configure
 #CONFIGURE_FLAGS = <options for ./configure>