Does not build on Travis-CI [Linux]

[keltia]

When I try to build gpgme for my module running on Travis-CI for continuous integration, I get these (maybe cgo-related) errors:

go: downloading github.com/proglottis/gpgme v0.0.0-20170426024346-49ea2555b6fc
go: downloading golang.org/x/text v0.3.0
golang_org/x/crypto/cryptobyte/asn1
github.com/BurntSushi/toml
github.com/pkg/errors
github.com/proglottis/gpgme
golang_org/x/crypto/cryptobyte
golang_org/x/net/dns/dnsmessage
net
# github.com/proglottis/gpgme
../../../../pkg/mod/github.com/proglottis/gpgme@v0.0.0-20170426024346-49ea2555b6fc/gpgme.go:72:35: could not determine kind of name for C.GPGME_ENCRYPT_NO_COMPRESS
../../../../pkg/mod/github.com/proglottis/gpgme@v0.0.0-20170426024346-49ea2555b6fc/gpgme.go:556:38: could not determine kind of name for C.GPGME_EXPORT_MODE_PKCS12
../../../../pkg/mod/github.com/proglottis/gpgme@v0.0.0-20170426024346-49ea2555b6fc/gpgme.go:555:38: could not determine kind of name for C.GPGME_EXPORT_MODE_RAW
../../../../pkg/mod/github.com/proglottis/gpgme@v0.0.0-20170426024346-49ea2555b6fc/gpgme.go:554:38: could not determine kind of name for C.GPGME_EXPORT_MODE_SECRET
../../../../pkg/mod/github.com/proglottis/gpgme@v0.0.0-20170426024346-49ea2555b6fc/gpgme.go:86:40: could not determine kind of name for C.GPGME_KEYLIST_MODE_WITH_SECRET
../../../../pkg/mod/github.com/proglottis/gpgme@v0.0.0-20170426024346-49ea2555b6fc/gpgme.go:50:30: could not determine kind of name for C.GPGME_PROTOCOL_SPAWN
golang_org/x/crypto/internal/chacha20

Not sure how to fix these.

[proglottis]

Thanks for the report. The build normally complains about constants if the gpgme version isn't exactly matched. I haven't decided quite how to solve this yet. I've had #15 open for some time for the same reason, quite tricky with apt to get a good modern version of gpgme that will run all the tests and has all the constants.

This may have changed now. I haven't checked for a while

[keltia]

Thanks. It was difficult enough to get the right packages on Travis but I might have different version than expected. This is what I use: https://github.com/keltia/archive/blob/master/.travis.yml

[proglottis]

I'm thinking about maybe doing something like gocv (https://github.com/hybridgroup/gocv/blob/master/Makefile). Seems really complicated though

[proglottis]

@keltia I've decided to break backwards compat here and remove the constants that are newer than what a typical linux install gets. This repo now has a travis build that at least works on linux/osx

[keltia]

Thanks! Will test and report.

[keltia]

It works, thanks!

Please take the time to tag a release, it is easier for modules.