Hello! I’ve upgraded the dependencies of my project and running

pulumi up

after that, I got the following error:

# <http://github.com/pjbgf/sha1cd/cgo|github.com/pjbgf/sha1cd/cgo>
    vendor/github.com/pjbgf/sha1cd/cgo/sha1.go:3:11: fatal error: lib/sha1.h: No such file or directory
        3 | // #include <lib/sha1.h>
          |           ^~~~~~~~~~~~
    compilation terminated.

    error: error in compiling Go: unable to run `go build`: exit status 2

The concerned package is an indirect dependency of the Go Pulumi SDK:

❯ go mod why <http://github.com/pjbgf/sha1cd/cgo|github.com/pjbgf/sha1cd/cgo>
# <http://github.com/pjbgf/sha1cd/cgo|github.com/pjbgf/sha1cd/cgo>
<my-pulumi-go-project>
<http://github.com/pulumi/pulumi/sdk/v3/go/pulumi|github.com/pulumi/pulumi/sdk/v3/go/pulumi>
<http://github.com/pulumi/pulumi/sdk/v3/go/common/resource/plugin|github.com/pulumi/pulumi/sdk/v3/go/common/resource/plugin>
<http://github.com/pulumi/pulumi/sdk/v3/go/common/workspace|github.com/pulumi/pulumi/sdk/v3/go/common/workspace>
<http://github.com/go-git/go-git/v5/plumbing|github.com/go-git/go-git/v5/plumbing>
<http://github.com/go-git/go-git/v5/plumbing/hash|github.com/go-git/go-git/v5/plumbing/hash>
<http://github.com/pjbgf/sha1cd/cgo|github.com/pjbgf/sha1cd/cgo>

I did some search and I came across this pull request which should have solved the problem: https://github.com/pjbgf/sha1cd/pull/5. However, this is not the case because Pulumi doesn’t seem to build Go programs using

CGO_ENABLED=0

. What’s the reason why

CGO_ENABLED=0

is not used?

Hi Yann, Can you run

pulumi about

and maybe share your project (or parts of it, as possible)?

Sure, here is a sample project https://github.com/yann-soubeyrand/pulumi-cgo and `pulumi about`:

CLI          
Version      3.48.0
Go Version   go1.19.2
Go Compiler  gc

Plugins
NAME  VERSION
go    unknown

Host     
OS       fedora
Version  37
Arch     x86_64

This project is written in go: executable='/usr/bin/go' version='go version go1.19.1 linux/amd64'

Current Stack: test

TYPE                 URN
pulumi:pulumi:Stack  urn:pulumi:test::cgo::pulumi:pulumi:Stack::cgo-test


Found no pending operations associated with test

Backend        
Name           toolbox
URL            file://.
User           yann
Organizations  

Pulumi locates its logs in /tmp by default
warning: Failed to get information about the Pulumi program's dependencies: failed to get modules: exit status 1

The root cause seems to be the vendoring: github.com/pjbgf/sha1cd/cgo includes C files in github.com/pjbgf/sha1cd/cgo/lib and vendoring of a package doesn’t include subfolders. However, using

export CGO_ENABLED=0

before running

pulumi up

makes it work.

Hi Yann, best thing would be to open an issue in the Pulumi repo! The engineers can than engage with your suggestion better

Thanks for the suggestion @many-telephone-49025. I’ve open this discussion: https://github.com/pulumi/pulumi/discussions/11526