enable coverage build for travis

.travis.yml

@@ -11,4 +11,8 @@ before_install:
   - sudo add-apt-repository -y ppa:yubico/stable
   - sudo apt-get update -qq
   - sudo apt-get install -qq -y --no-install-recommends libykclient-dev libpam0g-dev libyubikey-dev asciidoc docbook-xml xsltproc libxml2-utils $EXTRA
-script: autoreconf -i && ./configure $CONFIGURE_ARGS && make check
+script: tests/aux/build-and-test.sh
+matrix:
+  include:
+    - compiler: gcc
+      env: COVERAGE="--enable-coverage" EXTRA="libldap2-dev libykpers-1-dev libnet-ldap-server-perl lcov"

tests/aux/build-and-test.sh

@@ -0,0 +1,12 @@
+#!/bin/sh
+
+set -e
+
+autoreconf -i
+
+./configure $COVERAGE
+make check
+if [ "x$COVERAGE" != "x" ]; then
+    gem install coveralls-lcov
+    coveralls-lcov --repo-token $COVERALLS_TOKEN coverage/app2.info
+fi