commit https://github.com/vim/vim/commit/17576a1e33d71b5602cee86bf220a806c8412605 Author: Bram Moolenaar <Bram@vim.org> Date: Wed Jan 20 20:05:44 2016 +0100 patch 7.4.1144 Problem: Can't build on several systems. Solution: Include float.h. (Christian Robinson, closes https://github.com/vim/vim/issues/570 https://github.com/vim/vim/issues/571)

Test for ":options".

STARTTEST
:so small.vim
:let caught = 'ok'
:try
  :options
:catch 
  :let caught = v:throwpoint . "\n" . v:exception
:endtry
:buf 1
:$put =caught
:"
:" Test that changing 'path' keeps two commas.
:set path=foo,,bar
:set path-=bar
:set path+=bar
:$put =&path
:/^result/,$w! test.out
:qa!
ENDTEST

result