-echo "THIS COMMAND IS NOT AVAILABLE!"
-echo "Since v3.4 we use cmake. Now use:"
-echo "\tcmake -DCMAKE_INSTALL_PREFIX=<where_you_want> .\n\tmake\n\tmake install."
+cat <<EOT
+THIS COMMAND IS NOT AVAILABLE!
+Since v3.4 we use cmake. Now use:
+ cmake -DCMAKE_INSTALL_PREFIX=<where_you_want> .
+ make
+ make install
+EOT
+
+exit 1