Re: [go-nuts] GCCGO Go compiled import pkg not found error

[Ian Lance Taylor]

On Wed, Feb 26, 2014 at 3:10 AM, darkofpain <batuha...@gmail.com> wrote:
> With GCC c, c + +, go languages installed
>
> but test.go when I want to compile the code fails because it can not find
> libraries
>
> How can I solve this problem.
>
> batuhangoksu:~ batuhangoksu$ gccgo -c /Users/batuhangoksu/Desktop/test.go
> /Users/batuhangoksu/Desktop/test.go:3:11: error: import file ‘fmt’ not
> found
> import "fmt"

Something is wrong with your installation. Did you run "make install"
from the top level of your build tree? Did you move files around
after running "make install"?

Ian

[Dave Cheney]

In addition to what Ian said, it is probably something strange with your gccgo install.

Where did you install gccgo from ? From source ? From some operating system distribution ? At the moment I'd recommend doing a source build,

../gcc/trunk/configure --prefix=/opt/gccgo --enable-languages=go --disable-bootstrap

^ this is the configure line I use to build gccgo myself, make install will install it to /opt/gccgo and I recommend no moving it from there.

^ 

[Brendan Tracey]

Hi,

I'm seeing this problem. I'm on OSX 10.9. I followed the instructions in the "Build commands" section of https://golang.org/doc/install/gccgo (though without the gold linker). The source directory is unrelated to $GOPATH and $GOROOT, and the binary is installed to /opt/gccgo .
 I ran make install from 'objdir' like the build commands imply, and I have not moved any files. Does gccgo assume a certain $GOROOT? That's all I can think of that's weird about my installation. Error and other details below. Thanks.

brendan:~$ cd $GOPATH/src
brendan:~/Documents/mygo/src$ go install -compiler=gccgo github.com/gonum/floats/
# github.com/gonum/floats
github.com/gonum/floats/floats.go:14:8: error: import file ‘errors’ not found
  "errors"
        ^
github.com/gonum/floats/floats.go:15:6: error: import file ‘math’ not found
  "math"
      ^
github.com/gonum/floats/floats.go:16:6: error: import file ‘sort’ not found
  "sort"

brendan:~$ go version
go version go1.3 darwin/amd64
brendan:~$ go env
GOARCH="amd64"
GOBIN=""
GOCHAR="6"
GOEXE=""
GOHOSTARCH="amd64"
GOHOSTOS="darwin"
GOOS="darwin"
GOPATH="/Users/brendan/Documents/mygo"
GORACE=""
GOROOT="/Users/brendan/gover/go_1_3_0"
GOTOOLDIR="/Users/brendan/gover/go_1_3_0/pkg/tool/darwin_amd64"
CC="clang"
GOGCCFLAGS="-fPIC -m64 -pthread -fno-caret-diagnostics -Qunused-arguments -fmessage-length=0 -fno-common"
CXX="clang++"
CGO_ENABLED="1"

[Brendan Tracey]

Ah, well that would explain it. Is there a reason this is not stated in https://golang.org/doc/install/gccgo ? Would have saved me some time…

On Oct 22, 2014, at 3:49 PM, Chris Manghane <cm...@google.com> wrote:

Hi,

Unfortunately gccgo does not work on Darwin (http://gcc.gnu.org/PR46986).  Sorry.

Chris

[Chris Manghane]

[Ian Taylor]

On Wed, Oct 22, 2014 at 4:20 PM, Brendan Tracey
<tracey....@gmail.com> wrote:
> Ah, well that would explain it. Is there a reason this is not stated in
> https://golang.org/doc/install/gccgo ? Would have saved me some time…

I sent out https://gcc.gnu.org/ml/gcc-patches/2014-10/msg02329.html to
prevent attempts to build gccgo on some systems that are known to not
work.

Ian

> On Oct 22, 2014, at 3:49 PM, Chris Manghane <cm...@google.com> wrote:
>
> Hi,
>
> Unfortunately gccgo does not work on Darwin (http://gcc.gnu.org/PR46986).
> Sorry.
>
> Chris
>
>

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[Brendan Tracey]

Thanks.