Check vimproc.vim availability first

eagletmt · Feb 21, 2014 · 4c6083b · 4c6083b
1 parent 76b0235
commit 4c6083b
Showing 1 changed file with 16 additions and 0 deletions.
diff --git a/after/ftplugin/haskell/ghcmod.vim b/after/ftplugin/haskell/ghcmod.vim
@@ -3,6 +3,22 @@ if exists('b:did_ftplugin_ghcmod') && b:did_ftplugin_ghcmod
 endif
 let b:did_ftplugin_ghcmod = 1
 
+if !exists('s:has_vimproc')
+  try
+    call vimproc#version()
+    let s:has_vimproc = 1
+  catch /^Vim\%((\a\+)\)\=:E117/
+    let s:has_vimproc = 0
+  endtry
+endif
+
+if !s:has_vimproc
+  echohl ErrorMsg
+  echomsg 'ghcmod: vimproc.vim is not installed!'
+  echohl None
+  finish
+endif
+
 if !exists('s:has_ghc_mod')
   let s:has_ghc_mod = 0