Make skipLibCheck overridable (#1617)

* Make skipLibCheck overridable

* Bump to version 9.4.4

* Add changelog entry

Author: haakonflatval-cognite

CHANGELOG.md

@@ -1,5 +1,8 @@
 # Changelog
 
+## 9.4.4
+* [Bug fix: let users override skipLibCheck](https://github.com/TypeStrong/ts-loader/pull/1617) - thanks @haakonflatval-cognite
+
 ## 9.4.3
 * [Bug fix: add config file as build dependency](https://github.com/TypeStrong/ts-loader/pull/1611) - thanks @alexander-akait
 

package.json

@@ -1,6 +1,6 @@
 {
   "name": "ts-loader",
-  "version": "9.4.3",
+  "version": "9.4.4",
   "description": "TypeScript loader for webpack",
   "main": "index.js",
   "types": "dist",

src/compilerSetup.ts

@@ -55,10 +55,15 @@ export function getCompilerOptions(
   configParseResult: typescript.ParsedCommandLine,
   compiler: typeof typescript
 ) {
-  const compilerOptions = Object.assign({}, configParseResult.options, {
-    skipLibCheck: true,
-    suppressOutputPathCheck: true, // This is why: https://github.com/Microsoft/TypeScript/issues/7363
-  } as typescript.CompilerOptions);
+  const defaultOptions = { skipLibCheck: true };
+
+  const compilerOptions = Object.assign(
+    defaultOptions,
+    configParseResult.options,
+    {
+      suppressOutputPathCheck: true, // This is why: https://github.com/Microsoft/TypeScript/issues/7363
+    } as typescript.CompilerOptions
+  );
 
   // if `module` is not specified and not using ES6+ target, default to CJS module output
   if (