[vala/wip/ci: 18/21] ci: Add ubuntu:18.04 run with gcc

[Rico Tzschichholz <ricotz src gnome org>]

commit 6a2e5ca351b00e29efc57e2405f68e9ba23d8e7a
Author: Rico Tzschichholz <ricotz ubuntu com>
Date:   Mon Jul 22 14:30:50 2019 +0200

    ci: Add ubuntu:18.04 run with gcc

 .gitlab-ci.yml | 18 ++++++++++++++++++
 1 file changed, 18 insertions(+)
---
diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index c521140ba..bbc8d908e 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -42,6 +42,24 @@ ubuntu-clang-x86_64:
     - make -j4 bootstrap
     - make -j4 check
 
+ubuntu-lts-18-gcc-x86_64:
+  stage: build
+  image: ubuntu:18.04
+  except:
+    - tags
+  variables:
+    DEBIAN_FRONTEND: noninteractive
+  before_script:
+    - apt update
+    - apt install -y automake autoconf-archive libtool bison dbus flex git libglib2.0-dev libgraphviz-dev 
libgirepository1.0-dev lcov xsltproc make valac
+  script:
+    - git fetch --tags
+    - ./autogen.sh
+    - make -j4
+    - make -j4 bootstrap
+    - make -j4 check
+  allow_failure: true
+
 ubuntu-lts-16-gcc-x86_64:
   stage: build
   image: ubuntu:16.04