travis.yml: added LDFLAGS=-fuse-ld=gold
diff --git a/.travis.yml b/.travis.yml
index 1020df8..6d5f22b 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -8,7 +8,7 @@
 
 
     # Ubuntu 14.04 LTS Server Edition 64 bit
-    - env: Ubu=14.04 Cmd='make test CC=gcc-6 MOREFLAGS="-g -fsanitize=address -fsanitize=undefined"'
+    - env: Ubu=14.04 Cmd='make test CC=gcc-6 MOREFLAGS="-g -fsanitize=address -fsanitize=undefined" LDFLAGS=-fuse-ld=gold'
       os: linux
       dist: trusty
       sudo: required
@@ -18,9 +18,8 @@
             - ubuntu-toolchain-r-test
           packages:
             - gcc-6
-            - gcc-6-multilib
 
-    - env: Ubu=14.04 Cmd='make -C tests test32 CC=gcc-6 MOREFLAGS="-g -fsanitize=address"'
+    - env: Ubu=14.04 Cmd='make -C tests test32 CC=gcc-6 MOREFLAGS="-g -fsanitize=address" LDFLAGS=-fuse-ld=gold'
       os: linux
       dist: trusty
       sudo: required