other entities that control, are controlled by, or are under common
      control with that entity. For the purposes of this definition,
      "control" means (i) the power, direct or indirect, to cause the
      direction or management of such entity, whether by contract or
      otherwise, or (ii) ownership of fifty percent (50%) or more of the
      outstanding shares, or (iii) beneficial ownership of such entity.

			check.errorf(arg0, InvalidOffsetof, invalidArg+"%s is a method value", arg0)
			return
		}
		if indirect {
			check.errorf(x, InvalidOffsetof, invalidArg+"field %s is embedded via a pointer in %s", sel, base)
			return
		}

		// TODO(gri) Should we pass x.typ instead of base (and have indirect report if derefStructPtr indirected)?
		check.recordSelection(selx, FieldVal, base, obj, index, false)

	return NewDecoderFunc(pkg, getPackageFunc)
}

// NewDecoderFunc returns a fact decoder for the specified package.
//
// It calls the getPackage function for the package path string of
// each dependency (perhaps indirect) that it encounters in the
// encoding. If the function returns nil, the fact is discarded.
//
// This function is preferred over [NewDecoder] when the client is
// capable of efficient look-up of packages by package path.

LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY

	}
	s.errorf("can't handle assignment of %s to empty interface argument", n)
	panic("not reached")
}

// indirect returns the item at the end of indirection, and a bool to indicate
// if it's nil. If the returned bool is true, the returned value's kind will be
// either a pointer or interface.
func indirect(v reflect.Value) (rv reflect.Value, isNil bool) {

# Write go tool cgo -godefs input.
(
	echo package unix
	echo
	echo '/*'
	indirect="includes_$(uname)"
	echo "${!indirect} $includes"
	echo '*/'
	echo 'import "C"'
	echo 'import "syscall"'
	echo
	echo 'const ('

	# The gcc command line prints all the #defines
	# it encounters while processing the input
	echo "${!indirect} $includes" | $CC -x c - -E -dM $ccflags |
	awk '

// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY

	example.net/requireincompatible v0.1.0 => ./requireincompatible
)

require example.net/lazy v0.1.0

require example.com/retract/incompatible v1.0.0 // indirect
-- incompatible.go --
package incompatible

import _ "example.net/lazy"

-- lazy/go.mod --
// Module lazy requires example.com/retract/incompatible v1.0.0.
//
// When viewed from the outside it also has a transitive dependency

func boolFieldAddr(conf *Config, name string) *bool {
	v := reflect.Indirect(reflect.ValueOf(conf))
	return (*bool)(v.FieldByName(name).Addr().UnsafePointer())
}

// stringFieldAddr(conf, name) returns the address of the string field conf.<name>.
// For accessing unexported fields.
func stringFieldAddr(conf *Config, name string) *string {
	v := reflect.Indirect(reflect.ValueOf(conf))

 * OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY 
 * AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL COPYRIGHT HOLDERS OR
 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON