Fix install-timelord on Mac - install vdf_bench, supress brew dupe

install-timelord.sh

@@ -1,6 +1,6 @@
 echo "This requires the chia python virtual environment."
 echo "Execute '. ./activate' if you have not already, before running."
-
+export BUILD_VDF_BENCH=Y # Installs the useful vdf_bench test of CPU squaring speed
 THE_PATH=`python -c 'import pkg_resources; print( pkg_resources.get_distribution("chiavdf").location)' 2> /dev/null`/vdf_client
 CHIAVDF_VERSION=`python -c 'from setup import dependencies; t = [_ for _ in dependencies if _.startswith("chiavdf")][0]; print(t)'`
 
@@ -24,7 +24,8 @@ else
     sudo apt-get install cmake libgmp-dev libboost-python-dev libpython3.7-dev libboost-system-dev -y
     echo venv/bin/python -m pip install --force --no-binary chiavdf $CHIAVDF_VERSION
     venv/bin/python -m pip install --force --no-binary chiavdf $CHIAVDF_VERSION
-  elif [ -e venv/bin/python ] && test $MACOS
+    ln -s venv/lib/python3.7/site-packages/vdf_bench
+  elif [ -e venv/bin/python ] && test $MACOS && ! brew info boost>/dev/null 2>&1
   then
     echo "Installing chiavdf requirements for MacOS"
     brew install boost
@@ -34,6 +35,7 @@ else
     # User needs to provide required packages
     echo venv/bin/python -m pip install --force --no-binary chiavdf $CHIAVDF_VERSION
     venv/bin/python -m pip install --force --no-binary chiavdf $CHIAVDF_VERSION
+    ln -s venv/lib/python3.7/site-packages/vdf_bench
   else
     echo "no venv created yet, please run install.sh"
   fi

install.sh

@@ -44,9 +44,8 @@ if [ `uname` = "Linux" ]; then
 elif [ `uname` = "Darwin" ] && type brew && ! npm version>/dev/null 2>&1; then
   # Install npm if not installed
   brew install npm
-elif [ `uname` = "Darwin" ] && ! type brew; then
-  echo "Installation currently requires brew on MacOS"
-  echo "Instructions here: https://brew.sh/"
+elif [ `uname` = "Darwin" ] && ! type brew >/dev/null 2>&1; then
+  echo "Installation currently requires brew on MacOS - https://brew.sh/"
 fi
 
 # this fancy syntax sets INSTALL_PYTHON_PATH to "python3.7" unless INSTALL_PYTHON_VERSION is defined