commit f6d877975ba93fc9b4bee2c5d2aff88dbf9bea59
author Bram Moolenaar <Bram@vim.org> Mon Jul 05 17:49:02 2021 +0200
committer Bram Moolenaar <Bram@vim.org> Mon Jul 05 17:49:02 2021 +0200
tree 7db003610c7d925651a19f755a6338a75948a8c9
parent d6fa7bd5b900dd363d3a824e0ebe3619a1634df6

patch 8.2.3109: check for $DISPLAY never fails

Problem:    Check for $DISPLAY never fails.
Solution:   Use eval().

src/testdir/check.vim

diff --git a/src/testdir/check.vim b/src/testdir/check.vim
index 504a192..6d2d564 100644
--- a/src/testdir/check.vim
+++ b/src/testdir/check.vim
@@ -139,7 +139,7 @@
 " Command to Check for an environment variable
 command -nargs=1 CheckEnv call CheckEnv(<f-args>)
 func CheckEnv(name)
-  if empty('$' .. a:name)
+  if empty(eval('$' .. a:name))
     throw 'Skipped: Environment variable ' .. a:name .. ' is not set'
   endif
 endfunc