Cannot build on linux via docker from mac, due to S2N

[tadelv]

Describe the bug

When trying to build aws-sdk-swift on Linux (docker Amazon Linux 2) from a Mac, an unexpected error occurs when trying to build S2N from aws-crt-swift.

error: 'aws-crt-swift': target 'S2N' has invalid header layout: umbrella header found at '/workspace/.build/checkouts/aws-crt-swift/aws-common-runtime/s2n/api/S2N.h', but directories exist next to it: /workspace/.build/checkouts/aws-crt-swift/aws-common-runtime/s2n/api/unstable; consider removing them
error: ExitCode(rawValue: 1)

I'm just adding this report in order to track when the aws-crt-swift changes will be merged into the sdk.

Expected Behavior

build should not fail

Current Behavior

Error pasted above

Reproduction Steps

Create a Swift package, add aws-sdk-swift as a dependency, build on Mac using Docker and amazonlinux2.

Or use my repo: https://github.com/tadelv/stars-and-planets.git, switch to branch feature/lambda , enter StarsAndPlanetsLambda folder and type (in terminal) $Scripts/build-and-package.sh

Possible Solution

Probably update dependencies when this is fixed/merged:

awslabs/aws-crt-swift#179

Additional Information/Context

It seems that this issue also happens because the default macOS volume is not case-sensitive:

awslabs/aws-crt-swift#163 (comment)

Creating another Volume, that is case-sensitive and building the project there seems to work around this issue.

AWS SWIFT SDK version used

0.14.0

Compiler and Version used

Swift 5.7

Operating System and version

MacOs 13, swift:amazonlinux2

[jbelkins]

Thanks for your report. This is a known issue in the aws-crt-swift project, as you noted. We are currently working on a solution.

We will update this ticket when the issue is fixed in this SDK.

[jbelkins]

This will be fixed in the next release of AWS SDK for Swift.