r.off++
		return rv, nil
	}
	return r.rdr.ReadByte()
}

func (r *MReader) Seek(offset int64, whence int) (int64, error) {
	if r.fileView == nil {
		return r.rdr.MustSeek(offset, whence), nil
	}
	switch whence {
	case io.SeekStart:
		r.off = offset
		return offset, nil
	case io.SeekCurrent:
		return r.off, nil
	case io.SeekEnd:
		r.off = int64(len(r.fileView)) + offset
		return r.off, nil
	}

        # To allow special characters in headers
        ignore_invalid_headers off;
        # Allow any size file to be uploaded.
        # Set to a value such as 1000m; to restrict file size to a specific value
        client_max_body_size 0;
        # To disable buffering
        proxy_buffering off;
        proxy_request_buffering off;

        location / {
            proxy_set_header Host $http_host;

#define x1in(off) (32*0 + off)(SP)
#define y1in(off) (32*1 + off)(SP)
#define z1in(off) (32*2 + off)(SP)
#define x2in(off) (32*3 + off)(SP)
#define y2in(off) (32*4 + off)(SP)
#define xout(off) (32*5 + off)(SP)
#define yout(off) (32*6 + off)(SP)
#define zout(off) (32*7 + off)(SP)
#define s2(off)   (32*8 + off)(SP)
#define z1sqr(off) (32*9 + off)(SP)
#define h(off)	  (32*10 + off)(SP)

				Off:    bo.Uint64(phdata[off+unsafe.Offsetof(ph.Off):]),
				Vaddr:  bo.Uint64(phdata[off+unsafe.Offsetof(ph.Vaddr):]),
				Paddr:  bo.Uint64(phdata[off+unsafe.Offsetof(ph.Paddr):]),
				Filesz: bo.Uint64(phdata[off+unsafe.Offsetof(ph.Filesz):]),
				Memsz:  bo.Uint64(phdata[off+unsafe.Offsetof(ph.Memsz):]),
				Align:  bo.Uint64(phdata[off+unsafe.Offsetof(ph.Align):]),
			}
		}

}

// Seek to a new position in the type unit.
func (tur *typeUnitReader) Seek(off Offset) {
	tur.err = nil
	doff := off - tur.tu.off
	if doff < 0 || doff >= Offset(len(tur.tu.data)) {
		tur.err = fmt.Errorf("%s: offset %d out of range; max %d", tur.tu.name, doff, len(tur.tu.data))
		return
	}
	tur.b = makeBuf(tur.d, tur.tu, tur.tu.name, off, tur.tu.data[doff:])
}

        # To allow special characters in headers
        ignore_invalid_headers off;
        # Allow any size file to be uploaded.
        # Set to a value such as 1000m; to restrict file size to a specific value
        client_max_body_size 0;
        # To disable buffering
        proxy_buffering off;
        proxy_request_buffering off;

        location / {
            proxy_set_header Host $http_host;

        # To allow special characters in headers
        ignore_invalid_headers off;
        # Allow any size file to be uploaded.
        # Set to a value such as 1000m; to restrict file size to a specific value
        client_max_body_size 0;
        # To disable buffering
        proxy_buffering off;
        proxy_request_buffering off;

        location / {
            proxy_set_header Host $http_host;

(CMP(L|W|B)load {sym} [off] ptr x mem) => (CMP(L|W|B) (MOV(L|W|B)load {sym} [off] ptr mem) x)

(CMPLconstload {sym} [vo] ptr mem) => (CMPLconst (MOVLload {sym} [vo.Off()] ptr mem) [vo.Val()])
(CMPWconstload {sym} [vo] ptr mem) => (CMPWconst (MOVWload {sym} [vo.Off()] ptr mem) [vo.Val16()])

        # To allow special characters in headers
        ignore_invalid_headers off;
        # Allow any size file to be uploaded.
        # Set to a value such as 1000m; to restrict file size to a specific value
        client_max_body_size 0;
        # To disable buffering
        proxy_buffering off;
        proxy_request_buffering off;

        location / {
            proxy_set_header Host $http_host;

env GOCACHE=test
! go build -o triv triv.go
stderr 'build cache is required, but could not be located: GOCACHE is not an absolute path'

# An explicit GOCACHE=off also disables builds.
env GOCACHE=off
! go build -o triv triv.go
stderr 'build cache is disabled by GOCACHE=off'

# If GOCACHE is set to an unwritable directory, we should diagnose it as such.
[GOOS:windows] stop # Does not support unwritable directories.