* 

/vol/gcc/src/hg/trunk/local/libgo/go/syscall/exec_bsd.go:107:7: error: incompatible types in assignment (cannot use type int as type Pid_t)
    r1 = raw_getpid()
       ^

I can cast to Pid_t and this works.  The underlying error to me seems
that raw_getpid the in the generated libcalls.go is wrong, casting
c_getpid return value to int while pid_t can be long.

* 

/vol/gcc/src/hg/trunk/local/libgo/go/net/hook_cloexec.go:13:70: error: reference to undefined identifier 'syscall.Accept4'
  accept4Func func(int, int) (int, syscall.Sockaddr, error) = syscall.Accept4
                                                                      ^
  
No accept4 on Solaris (and certainly other systems, thence configure
test), but used unconditionally.

* 

/vol/gcc/src/hg/trunk/local/libgo/go/net/sendfile_solaris.go:78:22: error: reference to undefined identifier 'syscall.Sendfile'
   n, err1 := syscall.Sendfile(dst, src, &pos1, n)
                      ^

Only in go/syscall/libcall_linux.go!?

* 

/vol/gcc/src/hg/trunk/local/libgo/go/net/tcpsockopt_solaris.go:34:103: error: reference to undefined identifier 'syscall.TCP_KEEPALIVE_THRESHOLD'
  return os.NewSyscallError("setsockopt", syscall.SetsockoptInt(fd.sysfd, syscall.IPPROTO_TCP, syscall.TCP_KEEPALIVE_THRESHOLD, msecs))

                       ^
  
Not in Solaris 10, only Solaris 11 and 12 have it.

  Rainer

-- 
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Rainer Orth, Center for Biotechnology, Bielefeld University