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[SR-4916] swift build not creating shared library on linux #5015

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swift-ci opened this issue May 17, 2017 · 7 comments

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Contributor

swift-ci commented May 17, 2017


Previous ID	SR-4916
Radar	None
Original Reporter	tedgoddard (JIRA User)
Type	Bug
Status	Resolved
Resolution	Invalid

Attachment: Download

Environment

swift-4.0-DEVELOPMENT-SNAPSHOT-2017-05-15-a-ubuntu16.04
swift-4.0-DEVELOPMENT-SNAPSHOT-2017-05-15-a-osx

Additional Detail from JIRA


Votes	0
Component/s	Package Manager
Labels	Bug, Linux
Assignee	None
Priority	Medium

md5: 91c35ce2567dc0ed0a048bf9929a338f

Issue Description:

swift build is not creating the expected .so files on linux but does create .dylib files on MacOS.

Using https://swift.org/builds/swift-4.0-branch/ubuntu1604/swift-4.0-DEVELOPMENT-SNAPSHOT-2017-05-15-a/swift-4.0-DEVELOPMENT-SNAPSHOT-2017-05-15-a-ubuntu16.04.tar.gz

git clone https://github.com/PerfectExamples/Perfect-WebSocketsServer.git
cd Perfect-WebSocketsServer
swift build

Observe that no shared libraries are found in .build/debug on linux.

Member

ankitspd commented May 17, 2017

The expected behaviour is to not create `so` and `dylibs`. Are you sure you're seeing the dylib with Swift 4 toolchain and not the default toolchain? Please provide output of `swift build -v`. Thanks!

Contributor Author

swift-ci commented May 17, 2017

Comment by Ted Goddard (JIRA)

Thanks for your help. Yes, I see that this was not a clean build and does not complete on MacOS either (just the very tail):

swift-4-macos.txt

Contributor Author

swift-ci commented May 17, 2017

Comment by Ted Goddard (JIRA)

Is it an incorrect package declaration that is causing

ld: library not found for -lCHTTPParser for architecture x86_64

Contributor Author

swift-ci commented May 17, 2017

Comment by Ted Goddard (JIRA)

Such as this link declaration in the modulemap is no longer needed?

./.build/checkouts/Perfect-HTTPServer.git--6671958091389663080/Sources/CHTTPParser/include/module.modulemap

module CHTTPParser {
header "http_parser.h"
link "CHTTPParser"
export *
}

Contributor Author

swift-ci commented May 17, 2017

Comment by Ted Goddard (JIRA)

Yes, removing those link modulemap directives allows the project to compile. Is this the correct approach?

Member

ankitspd commented May 17, 2017

Yep, that's right. SwiftPM automatically manages the link statement (from v3.1).

Contributor Author

swift-ci commented May 18, 2017

Comment by Ted Goddard (JIRA)

Thanks so much for your help. I will relay this to the library developer (PerfectlySoft).

swift-ci transferred this issue from apple/swift-issues

shahmishal transferred this issue from apple/swift

This issue was closed.

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