at last, got c lang lint to work, muted cppcheck 'cuz unnecessary

init.lua

@@ -539,7 +539,7 @@ require('lazy').setup({
   require 'custom.plugins.toggleterm',
   require 'custom.plugins.refactoring',
   require 'custom.plugins.trouble',
-  require 'custom.plugins.mason',
+  -- require 'custom.plugins.mason',
   --
   -- ad hoc lsp line
   -- require 'kickstart.plugins.gitsigns', -- adds gitsigns recommend keymaps

lua/custom/plugins/lsp.lua

@@ -147,6 +147,8 @@ return { -- LSP Configuration & Plugins
       clangd = {
         cmd = {
           'clangd',
+          '--background-index',
+          '--offset-encoding=utf-16',
         },
       },
       -- gopls = {},

lua/kickstart/plugins/lint.lua

@@ -7,8 +7,8 @@ return {
       local lint = require 'lint'
       lint.linters_by_ft = {
         python = { 'ruff' },
-        cpp = { 'cppcheck' },
-        c = { 'cppcheck' },
+        -- cpp = { 'cppcheck' },
+        -- c = { 'cppcheck' },
         javascript = { 'eslint' },
         css = { 'stylelint' },
         html = { 'tidy' },