Warn user's when running make build locally

## Problem

I was developing coder locally on my macOS (Intel) and ran into issues with the `make build` script. Specifically, this error:


```shell
--- Creating archive for linux amd64 (/Users/jp/dev/coder/coder/dist/coder_0.7.6-devel+4f3202d9_linux_amd64.tar.gz)
a ./LICENSE
a ./README.md
a ./coder
/Users/jp/dev/coder/coder/dist/coder_0.7.6-devel+4f3202d9_linux_amd64.tar.gz


ln: illegal option -- P
usage: ln [-Ffhinsv] source_file [link_name]
       ln [-Ffhinsv] source_file ... linkname_dir
       link source_file link_name
make: *** [Makefile:34: build] Error 1
```

I believe we use `ln -P` in one place

https://github.com/coder/coder/blob/9bdaec6a2113c4c318f419d674e213d1b116c1b7/scripts/package.sh#L71-L75

## Solution

I see two solutions to fixing this problem.

### Option 1

Only pass `-P` on Linux-based OS's. It seems it's not [needed for macOS](https://ss64.com/osx/ln.html).

### Option 2

In scripts, check for an environment variable like `CI=1` and hard exit script with warning if not set. 

	ln -P "$input_file" "$temp_dir/coder"
	ln -P "$(realpath coder.env)" "$temp_dir/"
	ln -P "$(realpath coder.service)" "$temp_dir/"
	ln -P "$(realpath preinstall.sh)" "$temp_dir/"
	ln -P "$(realpath scripts/nfpm.yaml)" "$temp_dir/"

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Warn user's when running make build locally #2738

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Warn user's when running make build locally #2738

Description

Problem

Solution

Option 1

Option 2

Metadata

Metadata

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Labels

Type

Projects

Milestone

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Development

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