test: use gold instead of ld

.travis.yml

@@ -43,6 +43,7 @@ matrix:
       dist: trusty
       services: docker
       cache: ccache
+      install: "./.travis/linux-frozen/deps.sh"
       script: "./.travis/linux-frozen/build.sh"
     - os: linux
       env: NAME="MinGW build"

.travis/linux-frozen/build.sh

@@ -1,4 +1,3 @@
 #!/bin/bash -ex
 mkdir -p "$HOME/.ccache"
-docker pull citraemu/build-environments:linux-frozen
 docker run --env-file .travis/common/travis-ci.env -v $(pwd):/citra -v "$HOME/.ccache":/root/.ccache citraemu/build-environments:linux-frozen /bin/bash -ex /citra/.travis/linux-frozen/docker.sh

.travis/linux-frozen/deps.sh

@@ -0,0 +1,5 @@
+#!/bin/sh -ex
+
+sudo apt-get -y install binutils-gold
+
+docker pull citraemu/build-environments:linux-frozen

.travis/linux-frozen/docker.sh

@@ -1,5 +1,12 @@
 #!/bin/bash -ex
 
+mkdir -p ~/bin/gold
+echo '#!/bin/bash' > ~/bin/gold/ld
+echo 'gold "$@"' >> ~/bin/gold/ld
+chmod a+x ~/bin/gold/ld
+export CFLAGS="-B$HOME/bin/gold $CFLAGS"
+export CXXFLAGS="-B$HOME/bin/gold $CXXFLAGS"
+
 cd /citra
 
 mkdir build && cd build