Bug 1451931 - Add gcc/lib64 to the LD_LIBRARY_PATH of sm-rust-binding. r=glandium

MozReview-Commit-ID: 6VdXCtBDiQ8

--HG--
extra : rebase_source : f3e35a9a37e5f0b7f566dcfc0aa28de1d08bea50

taskcluster/scripts/builder/build-sm-rust-bindings.sh

@@ -11,6 +11,7 @@ sed -e "s|@top_srcdir@|$SRCDIR|" -e 's|@[^@]*@||g' < config.in > config
 
 cd "$SRCDIR/js/rust"
 
+export LD_LIBRARY_PATH="$TOOLTOOL_CHECKOUT/gcc/lib64"
 # Enable backtraces if we panic.
 export RUST_BACKTRACE=1