Strange compiler errors when CGO_ENABLED=0

[EtienneBruines]

I'm trying to compile my Go project to one static binary file, without linking to external libraries.

I am doing so by using this command:

CGO_ENABLED=0 go get -a -u -ldflags '-s'

This however produces the following errors:

# github.com/chai2010/webp
../github.com/chai2010/webp/reader.go:17: undefined: maxWebpHeaderSize
../github.com/chai2010/webp/webp.go:13: undefined: webpGetInfo
../github.com/chai2010/webp/webp.go:17: undefined: webpDecodeGray
../github.com/chai2010/webp/webp.go:30: undefined: webpDecodeRGB
../github.com/chai2010/webp/webp.go:39: undefined: webpDecodeRGBA
../github.com/chai2010/webp/webp.go:52: undefined: webpEncodeGray
../github.com/chai2010/webp/webp.go:57: undefined: webpEncodeRGB
../github.com/chai2010/webp/webp.go:61: undefined: webpEncodeRGBA
../github.com/chai2010/webp/webp.go:65: undefined: webpEncodeLosslessGray
../github.com/chai2010/webp/webp.go:70: undefined: webpEncodeLosslessRGB
../github.com/chai2010/webp/webp.go:70: too many errors

Which is strange, because (for instance) maxWebpHeaderSize is declared in capi.go

Extra info:

OS: Debian Jessie
Kernel 3.2.0-4-amd64
go version go1.3.2 linux/amd64

Any thoughts?

Thanks in advance.

[chai2010]

@EtienneBruines
The current webp is based on cgo. If cgo is disabled, it will cause error.
I will merge a puro go version to fix this issue when cgo is disabled.

thanks for your feedback.

[chai2010]

@EtienneBruines

e5bfb99

Fix the build error if cgo is disabled.
But the go test will fail.

I will close this issue.

PS:
Just for webp, cgo use static link, output is one static binary file.

[EtienneBruines]

@chai2010 Perfect! Thank you for the rapid response. Good to know that I shouldn't use CGO_ENABLED=0 and webp together.