Not able to compile gommap in Ubuntu 11.10

[tfmoraes]

I'm using Ubuntu 11.10 64 bits. I'm doing some experimentations with Go and it's important to me to have mmap. So I'm trying Gommap. But I'm not able to compile it. Here output:
$ sudo goinstall launchpad.net/gommap

/bin/bash: === cd /usr/lib/go/src/pkg/launchpad.net/gommap; bash gomake -f- install
6g -I "/usr/lib/go/pkg/linux_amd64" -o _go_.6 mmap_linux_amd64.go gommap.go consts.go
6c -FVw -o "consts.6" consts.c
consts.c:2 6c: No such file or directory: sys/mman.h
make: ** [consts.6] Erro 1
--- exit status 2
goinstall: launchpad.net/gommap: install: running bash: exit status 2 ($GOPATH not set)

I tried to install libc6-dev because of the of sys/mman.h, but nothing to compile. I have to set something?

Thanks!

[tfmoraes (tfmoraes)]

I've just tried to compile in MacOSX 10.7. But it was not possible too. Here the output error:

$ goinstall launchpad.net/gommap
/bin/bash: === cd /usr/local/Cellar/go/r60.3/src/pkg/launchpad.net/gommap; bash gomake -f- install
6g -I "/usr/local/Cellar/go/r60.3/pkg/darwin_amd64" -o _go_.6 consts.go gommap.go
gommap.go:59: undefined: mmap_syscall
make: *** [_go_.6] Error 1
--- exit status 2
goinstall: launchpad.net/gommap: install: running bash: exit status 2 ($GOPATH not set)

[tfmoraes (tfmoraes)]

Go compile versions:
Ubuntu: 6g version release.r60 9481
Mac, installed with Brew: 6g version release.r60.3 9516

[Gustavo Niemeyer (niemeyer)]

This should have been solved with the current release. Just "go get launchpad.net/gommap". If that doesn't work, please reopen with more details.