commit b6e3b88ec8b757b3acf940f8b4938e975c39ba67
author Bram Moolenaar <Bram@vim.org> Sat Jun 15 17:50:57 2019 +0200
committer Bram Moolenaar <Bram@vim.org> Sat Jun 15 17:50:57 2019 +0200
tree 8583d0c051be7d2bedd8c2d4e08ae54b887c7af5
parent d7c968794710f338d491072171df48f96612cf72

patch 8.1.1543: const test fails with small features

Problem:    Const test fails with small features.
Solution:   Don't unlet non-existing variables.

src/testdir/test_const.vim

diff --git a/src/testdir/test_const.vim b/src/testdir/test_const.vim
index f0b9a05..bb47e5e 100644
--- a/src/testdir/test_const.vim
+++ b/src/testdir/test_const.vim
@@ -43,8 +43,10 @@
     unlet F
     unlet l
     unlet d
-    unlet j
-    unlet c
+    if has('channel')
+      unlet j
+      unlet c
+    endif
     unlet b
     unlet n
     unlet bl
@@ -92,8 +94,10 @@
     unlet l:F
     unlet l:l
     unlet l:d
-    unlet l:j
-    unlet l:c
+    if has('channel')
+      unlet l:j
+      unlet l:c
+    endif
     unlet l:b
     unlet l:n
     unlet l:bl

src/version.c

diff --git a/src/version.c b/src/version.c
index 931b3af..0b036d0 100644
--- a/src/version.c
+++ b/src/version.c
@@ -778,6 +778,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    1543,
+/**/
     1542,
 /**/
     1541,