travis: Add a workaround for a bug regarding libtool installed via Homebrew

diff --git a/scripts/test.sh b/scripts/test.sh
index 26bf1b9..1d94b9b 100755 (executable)
--- a/scripts/test.sh
+++ b/scripts/test.sh
@@ -124,6 +124,8 @@ if test "$1" = "deps"; then
                ;;
        osx)
                brew update && \
+               # workaround for issue #6352
+               brew uninstall --force libtool && brew install libtool && \
                brew install $DEPS
                ;;
        esac