launchpad.net/juju-core/environs/imagemetadata fails with gccgo

[Michael Hudson-Doyle]

Like so:

$ go test -compiler gccgo launchpad.net/juju-core/environs/imagemetadata
...
simplestreams_test.go:275:
    c.Check(images, gc.DeepEquals, t.images)
... obtained []*imagemetadata.ImageMetadata = []*imagemetadata.ImageMetadata{(*imagemetadata.ImageMetadata)(0xc21008ef80), (*imagemetadata.ImageMetadata)(0xc21008ed80), (*imagemetadata.ImageMetadata)(0xc21008ea80), (*imagemetadata.ImageMetadata)(0xc213eafc00), (*imagemetadata.ImageMetadata)(0xc213eafb80)}
... expected []*imagemetadata.ImageMetadata = []*imagemetadata.ImageMetadata{(*imagemetadata.ImageMetadata)(0xc213eaf880), (*imagemetadata.ImageMetadata)(0xc213eaf900), (*imagemetadata.ImageMetadata)(0xc213eaf980), (*imagemetadata.ImageMetadata)(0xc213eafa00), (*imagemetadata.ImageMetadata)(0xc213eafa80)}

instinct says this is hash-order dependent

(if you get link errors you should try again (it's erratic) or apply the patch from https://codereview.appspot.com/28050043/ to your go tool)

[Dave Cheney (dave-cheney)]

This test won't even compile under ppc64el

[Dave Cheney (dave-cheney)]

$ go test launchpad.net/juju-core/environs/imagemetadata

...

/tmp/go-build496951398/launchpad.net/juju-core/environs/imagemetadata/_test/launchpad.net/juju-
core/environs/libimagemetadata.a(imagemetadata.o):(.rodata.launchpad.net_juju_core_environs_imagemetadata.ImageMetadataURL$descriptor+0x0): multiple definition of `launchpad.net_juju_core_environs_imagemetadata.ImageMetadataURL$descriptor'
/tmp/go-build496951398/launchpad.net/juju-core/environs/libimagemetadata.a(imagemetadata.o):(.rodata.launchpad.net_juju_core_environs_imagemetadata.ImageMetadataURL$descriptor+0x0): first defined here
/tmp/go-build496951398/launchpad.net/juju-core/environs/imagemetadata/_test/launchpad.net/juju-core/environs/libimagemetadata.a(imagemetadata.o):(.rodata.launchpad.net_juju_core_environs_imagemetadata.ValidateImageMetadata$descriptor+0x0): multiple definition of `launchpad.net_juju_core_environs_imagemetadata.ValidateImageMetadata$descriptor'
/tmp/go-build496951398/launchpad.net/juju-core/environs/libimagemetadata.a(imagemetadata.o):(.rodata.launchpad.net_juju_core_environs_imagemetadata.ValidateImageMetadata$descriptor+0x0): first defined here
/tmp/go-build496951398/launchpad.net/juju-core/environs/imagemetadata/_test/launchpad.net/juju-core/environs/libimagemetadata.a(imagemetadata.o): In function `launchpad.net_juju_core_environs_imagemetadata.ValidateImageMetadata':
/home/ubuntu/src/launchpad.net/juju-core/environs/imagemetadata/validation.go:14: multiple definition of `launchpad.net_juju_core_environs_imagemetadata.ValidateImageMetadata'
/tmp/go-build496951398/launchpad.net/juju-core/environs/libimagemetadata.a(imagemetadata.o):/home/ubuntu/src/launchpad.net/juju-core/environs/imagemetadata/validation.go:14: first defined here
/tmp/go-build496951398/launchpad.net/juju-core/environs/imagemetadata/_test/launchpad.net/juju-core/environs/libimagemetadata.a(imagemetadata.o): In function `launchpad.net_juju_core_environs_imagemetadata..import':
/home/ubuntu/src/launchpad.net/juju-core/environs/imagemetadata/generate.go:4: multiple definition of `launchpad.net_juju_core_environs_imagemetadata..import'
/tmp/go-build496951398/launchpad.net/juju-core/environs/libimagemetadata.a(imagemetadata.o):/home/ubuntu/src/launchpad.net/juju-core/environs/imagemetadata/generate.go:4: first defined here
collect2: error: ld returned 1 exit status
FAIL launchpad.net/juju-core/environs/imagemetadata [build failed]

$ go version
go version xgcc (Ubuntu 4.9-20140222-0ubuntu1) 4.9.0 20140222 (experimental) [trunk revision 208043] linux/ppc64

$ gccgo -v
Using built-in specs.
COLLECT_GCC=gccgo
COLLECT_LTO_WRAPPER=/usr/lib/gcc/powerpc64le-linux-gnu/4.9/lto-wrapper
Target: powerpc64le-linux-gnu
Configured with: ../src/configure -v --with-pkgversion='Ubuntu 4.9-20140222-0ubuntu1' --with-bugurl=file:///usr/share/doc/gccgo-4.9/README.Bugs --enable-languages=c,c++,go --prefix=/usr --program-suffix=-4.9 --enable-shared --enable-linker-build-id --libexecdir=/usr/lib --without-included-gettext --enable-threads=posix --with-gxx-include-dir=/usr/include/c++/4.9 --libdir=/usr/lib --enable-nls --with-sysroot=/ --enable-clocale=gnu --enable-libstdcxx-time=yes --enable-gnu-unique-object --d...