check linux and gcc version on build

There's something *special* in the netflify build environment

Author: dcolebatch

netlify.toml

@@ -10,7 +10,7 @@
   skip_processing = true
 
 [build.lifecycle]
-  onBuild = "sudo apt-get update && sudo apt-get install -y build-essential"
+  onBuild = "uname -a && gcc --version && sudo apt-get update && sudo apt-get install -y build-essential"
 
 [[plugins]]
   package = "@netlify/plugin-ruby-bundler"