On sobota, 30 listopada 2024 19:08:49 CET Cayetano Santos wrote:
> >sam. 30 nov. 2024 at 17:26, Marek Paśnikowski <marek@marekpasnikowski.pl> 
wrote:
> > Hello Guix
> > 
> > I am towards the end of a first pass of packaging the Proton Bridge
> > program to access my Proton Mail with KMail.
> > 
> > I have worked through and learned about many peculiarities of Golang build
> > system.  As long as I had an error message, I was able to at least work
> > around problems.  However, the latest build failure is completely cryptic
> > to me, as its log contains zero error messages.  It works fine until I
> > get a "build
> > failed" summary:
> The debug for dummies manual advices using the "--keep-failed" flag when
> you build packages. Using a shell container helps to understand this kind
> of cryptic messages too.
> 
> --
> Cayetano Santos


Thank you Ian, Cayetano for swiftly reminding me to Read The Manual.  I was so 
tired with constant tweaking of package after package, that I forgot to go to 
the basics.

I learned that I can source variables to emulate the build environment, in 
which I issued the same command that go build system uses to build the 
package.  Here is the result, much cleaner with the interesting stuff right at 
the end:

[...]
# github.com/ProtonMail/go-crypto/openpgp/packet
/tmp/guix-build-go-github-com-protonmail-go-proton-api-0.4.0.drv-0/src/
github.com/ProtonMail/go-crypto/openpgp/packet/packet_sequence.go:12:92: 
undefined: errors.ErrMalformedMessage
/tmp/guix-build-go-github-com-protonmail-go-proton-api-0.4.0.drv-0/src/
github.com/ProtonMail/go-crypto/openpgp/packet/packet_sequence.go:13:16: 
undefined: errors.ErrMalformedMessage
/tmp/guix-build-go-github-com-protonmail-go-proton-api-0.4.0.drv-0/src/
github.com/ProtonMail/go-crypto/openpgp/packet/packet_sequence.go:94:17: 
undefined: errors.ErrMalformedMessage
/tmp/guix-build-go-github-com-protonmail-go-proton-api-0.4.0.drv-0/src/
github.com/ProtonMail/go-crypto/openpgp/packet/config_v5.go:6:2: undefined: 
V5Disabled
/tmp/guix-build-go-github-com-protonmail-go-proton-api-0.4.0.drv-0/src/
github.com/ProtonMail/go-crypto/openpgp/packet/marker.go:27:33: undefined: 
packetTypeMarker
/tmp/guix-build-go-github-com-protonmail-go-proton-api-0.4.0.drv-0/src/
github.com/ProtonMail/go-crypto/openpgp/packet/padding.go:20:33: undefined: 
packetPadding

I remember faking a Proton’s fork with the upstream package because GitHub 
failed to find it.  It could be the one, or not.  At least I have a thread to 
follow now; and a new tool for deep inspection.