Angular cli webpack prod build error in combination with OpenLayers

[ArgV04]

Bug Report or Feature Request (mark with an x)

- [x] bug report -> please search issues before submitting
- [ ] feature request

Command (mark with an x)

- [ ] new
- [x] build
- [ ] serve
- [ ] test
- [ ] e2e
- [ ] generate
- [ ] add
- [ ] update
- [ ] lint
- [ ] xi18n
- [ ] run
- [ ] config
- [ ] help
- [ ] version
- [ ] doc

Versions

macOS - Sierra
node - v8.11.2
npm - 6.3.0
ol - 5.2.0

Angular CLI: 7.0.3
Node: 8.11.2
OS: darwin x64
Angular: 7.0.1
... animations, cdk, common, compiler, compiler-cli, core, forms
... http, language-service, material, platform-browser
... platform-browser-dynamic, router

Package Version

@angular-devkit/architect 0.10.3
@angular-devkit/build-angular 0.10.3
@angular-devkit/build-optimizer 0.10.3
@angular-devkit/build-webpack 0.10.3
@angular-devkit/core 7.0.3
@angular-devkit/schematics 7.0.3
@angular/cli 7.0.3
@angular/flex-layout 7.0.0-beta.19
@ngtools/.DS_Store
@ngtools/webpack 7.0.3
@schematics/.DS_Store
@schematics/angular 7.0.3
@schematics/update 0.10.3
rxjs 6.3.3
typescript 3.1.3
webpack 4.19.1

Repro steps

The bug occurs when build a prod build including open layers library and "buildOptimizer": set to true in angular.json.

There is already an open ticket in the open layers area which describes the issue: openlayers/openlayers#8815
But I don't know right if it's there the right place or better here?

The log given by the failure

Stack trace see here too: openlayers/openlayers#8815

Desired functionality

Use case is using of open layers map with Angular 7.0.x :) in production mode

Mention any other details that might be useful

[fredj]

In a nutshell, OpenLayers defines a function and calls it to initialize the module:
https://github.com/openlayers/openlayers/blob/7321541de83db157de38417cc83e32bd3eca397d/src/ol/proj.js#L495-L510

Because no code imports this addCommon function, the code (and the call) are removed from the build.

[clydin]

That in itself is not a problem. The issue here is that the package has identified itself as being side effect free in its package.json when it appears it is not.

[clydin]

Closing as the CLI is acting appropriately based on the information it is given from the package.

[angular-automatic-lock-bot]

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