--- a/vim/autoload/plug.vim	Wed Feb 11 17:44:46 2015 +0100
+++ b/vim/autoload/plug.vim	Wed Feb 11 17:46:22 2015 +0100
@@ -73,6 +73,7 @@
 let s:plug_buf = get(s:, 'plug_buf', -1)
 let s:mac_gui = has('gui_macvim') && has('gui_running')
 let s:is_win = has('win32') || has('win64')
+let s:ruby = has('ruby') && has('patch-7.2.374')
 let s:nvim = has('nvim') && !s:is_win
 let s:me = resolve(expand('<sfile>:p'))
 let s:base_spec = { 'branch': 'master', 'frozen': 0 }
@@ -234,6 +235,23 @@
   return substitute(a:str, '[\/]\+$', '', '')
 endfunction
 
+function! s:git_version_requirement(...)
+  let s:git_version = get(s:, 'git_version',
+    \ map(split(split(s:system('git --version'))[-1], '\.'), 'str2nr(v:val)'))
+  for idx in range(0, a:0 - 1)
+    let v = get(s:git_version, idx, 0)
+    if     v < a:000[idx] | return 0
+    elseif v > a:000[idx] | return 1
+    endif
+  endfor
+  return 1
+endfunction
+
+function! s:progress_opt(base)
+  return a:base && !s:is_win &&
+        \ s:git_version_requirement(1, 7, 1) ? '--progress' : ''
+endfunction
+
 if s:is_win
   function! s:rtp(spec)
     return s:path(a:spec.dir . get(a:spec, 'rtp', ''))
@@ -717,7 +735,7 @@
     \ 'pull':    a:pull,
     \ 'force':   a:force,
     \ 'new':     {},
-    \ 'threads': (has('ruby') || s:nvim) ? min([len(todo), threads]) : 1,
+    \ 'threads': (s:ruby || s:nvim) ? min([len(todo), threads]) : 1,
     \ 'bar':     '',
     \ 'fin':     0
   \ }
@@ -726,7 +744,7 @@
   call append(0, ['', ''])
   normal! 2G
 
-  if has('ruby') && s:update.threads > 1
+  if s:ruby && s:update.threads > 1
     try
       let imd = &imd
       if s:mac_gui
@@ -901,6 +919,8 @@
 endfunction
 
 function! s:tick()
+  let pull = s:update.pull
+  let prog = s:progress_opt(s:nvim)
 while 1 " Without TCO, Vim stack is bound to explode
   if empty(s:update.todo)
     if empty(s:jobs) && !s:update.fin
@@ -912,9 +932,7 @@
 
   let name = keys(s:update.todo)[0]
   let spec = remove(s:update.todo, name)
-  let pull = s:update.pull
   let new  = !isdirectory(spec.dir)
-  let prog = s:nvim ? '--progress' : ''
 
   call s:log(new ? '+' : '*', name, pull ? 'Updating ...' : 'Installing ...')
   redraw
@@ -1108,7 +1126,7 @@
     end
   } if VIM::evaluate('s:mac_gui') == 1
 
-  progress = iswin ? '' : '--progress'
+  progress = VIM::evaluate('s:progress_opt(1)')
   nthr.times do
     mtx.synchronize do
       threads << Thread.new {
@@ -1312,7 +1330,7 @@
       if v:shell_error
         throw get(s:lines(output), -1, v:shell_error)
       endif
-    elseif has('ruby')
+    elseif s:ruby
       call s:upgrade_using_ruby(new)
     else
       return s:err('curl executable or ruby support not found')