Add check that /bin/sh is bash.

install/98_bash.sh

+#!/bin/bash
+if [ -t 0 ] ; then
+    COLORON="\e[1m\e[31m"
+    COLOROFF="\e[0m"
+else
+    COLORON=""
+    COLOROFF=""
+fi
+INFO="${COLORON}[INFO]${COLOROFF}"
+
+/bin/sh --version >/dev/null 2>&1 | grep -i bash || {
+    echo -e "${INFO} Many legacy TASTE Makefiles depend on /bin/sh pointing to bash."
+    echo -e "${INFO} Please change your /bin/sh appropriately."
+    exit 1
+}