commit d4fc577e60d325777d38c00bd78fb9a32c7b1dfa
author Bram Moolenaar <Bram@vim.org> Tue Feb 27 14:39:03 2018 +0100
committer Bram Moolenaar <Bram@vim.org> Tue Feb 27 14:39:03 2018 +0100
tree 7156c1f7434e133399395ef9f6b98aed3819cd74
parent 33ef5bb0e4ea9a049c4311cfe59d1926dcb963a4

patch 8.0.1544: when using 'termguicolors' SpellBad doesn't show

Problem:    When using 'termguicolors' SpellBad doesn't show.
Solution:   When the GUI colors are not set fall back to the cterm colors.

src/structs.h

diff --git a/src/structs.h b/src/structs.h
index d429100..4f6a196 100644
--- a/src/structs.h
+++ b/src/structs.h
@@ -101,7 +101,10 @@
 # endif
 # define guicolor_T long
 # define INVALCOLOR ((guicolor_T)0x1ffffff)
+    /* only used for cterm.bg_rgb and cterm.fg_rgb: use cterm color */
+# define CTERMCOLOR ((guicolor_T)0x1fffffe)
 #endif
+#define COLOR_INVALID(x) ((x) == INVALCOLOR || (x) == CTERMCOLOR)
 
 /*
  * marks: positions in a file