[gjs: 3/5] CI: make a distinct build stage check

[Philip Chimento <pchimento src gnome org>]

commit 3aae8f6ee183a618b790c46d666c589f72df46e3
Author: Claudio André <claudioandre br gmail com>
Date:   Sun Mar 25 09:48:28 2018 -0300

    CI: make a distinct build stage check
    
    It was almost equal the one in the test stage.

 .gitlab-ci.yml | 7 +++----
 1 file changed, 3 insertions(+), 4 deletions(-)
---
diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index 997684f..d15a9cd 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -88,15 +88,14 @@ ubuntu_clang:
   only:
     - master@GNOME/gjs
 
-fedora_gcc:
+fedora_clang:
   <<: *build
   stage: build
-  image: claudioandre/spidermonkey:fedora.dev.gcc
+  image: claudioandre/spidermonkey:new-342.4  # temporarily pinned to old tag
   variables:
-    CC: gcc
+    CC: clang
     DEV: devel
     TEST: "distcheck"
-    BUILD_OPTS: "--enable-ubsan"
 
 coverage:
   <<: *build