From 832105f1cffb94d0193777f6c1d3ddc98be1e24d Mon Sep 17 00:00:00 2001
From: Iain Patterson <me@iain.cx>
Date: Thu, 14 May 2009 11:26:41 +0100
Subject: [PATCH] Resize fixes.

The numberwidth variable is only available in Vim 7.  We had thought it
was available in Vim 6.
The winnr() function used to check whether any windows have &number on
is present in Vim 7.  Disable window resizing if the function isn't
available.
---
 .vimrc | 34 ++++++++++++++++++----------------
 1 file changed, 18 insertions(+), 16 deletions(-)

diff --git a/.vimrc b/.vimrc
index 690ad40..b6ba9a8 100644
--- a/.vimrc
+++ b/.vimrc
@@ -100,7 +100,7 @@ se hlsearch
 se titlestring=%{Show_TitleString()}
 
 " Syntax highlighting.  New versions will use syn enable instead.
-if version < 600
+if version < "600"
   syn on
 endif
 
@@ -216,7 +216,7 @@ fun! Resize_Columns(op)
   endif
 
   " Vim 5 hardcodes the size of numbers column to 8.
-  if version >= 600
+  if version >= "700"
     let l:numberwidth = &numberwidth
   else
     let l:numberwidth = 8
@@ -230,21 +230,23 @@ fun! Number()
   call Iain_Vars()
   let &number = ! &number
 
-  let l:i = 0
-  let l:num_numbers = 0
-  while l:i <= winnr("$")
-    if getwinvar(l:i, "&number") == 1
-      let l:num_numbers = l:num_numbers + 1
+  if version >= "700"
+    let l:i = 0
+    let l:num_numbers = 0
+    while l:i <= winnr("$")
+      if getwinvar(l:i, "&number") == 1
+        let l:num_numbers = l:num_numbers + 1
+      endif
+      let l:i = l:i + 1
+    endwhile
+
+    if l:num_numbers == 0
+      let g:iainextracolumns = 0
+      call Resize_Columns("-")
+    elseif g:iainextracolumns == 0
+      let g:iainextracolumns = 1
+      call Resize_Columns("+")
     endif
-    let l:i = l:i + 1
-  endwhile
-
-  if l:num_numbers == 0
-    let g:iainextracolumns = 0
-    call Resize_Columns("-")
-  elseif g:iainextracolumns == 0
-    let g:iainextracolumns = 1
-    call Resize_Columns("+")
   endif
 endfun
 
-- 
2.20.1