fixing install script

script/discover_os

+#! /bin/bash
+
+function discover_os() {
+platform=unknown
+
+
+  if [[ "$OSTYPE" == "linux-gnu" ]]; then
+        echo -e "We are on\033[1;34m LINUX \033[0m"
+        platform=linux
+  elif [[ "$OSTYPE" == "darwin"* ]]; then
+        echo -e "We are on\033[1;34m MAC OSX \033[0m"
+        platform=osx
+  elif [[ "$OSTYPE" == "cygwin" ]]; then
+        echo -e "We are on\033[1;34m CYGWIN \033[0m"
+        echo "This platform is not supported"
+        exit 1
+  elif [[ "$OSTYPE" == "msys" ]]; then
+        echo -e "We are on\033[1;34m Microsoft Window \033[0m"
+        echo "This platform is not supported"
+        exit 1
+  elif [[ "$OSTYPE" == "win32" ]]; then
+        echo -e "We are on\033[1;34m Microsoft Window \033[0m"
+        echo "This platform is not supported"
+        exit 1
+  elif [[ "$OSTYPE" == "freebsd"* ]]; then
+        echo -e "We are on\033[1;34m FREEBSD \033[0m"
+        echo "This platform is not supported"
+        exit 1
+  else
+        echo -e "We are on an\033[1;34m unknown OS \033[0m"
+        echo "This platform is not supported"
+        exit 1
+  fi
+}
+