install is no longer PHONY?

[Michael Ellerman]

Hi Masahiro,

I noticed that "install" seems to be no longer PHONY, or at least if I
have a file/directory called install then the build doesn't run.

eg:
  $ touch install
  $ make install
  make: 'install' is up to date.
  $ rm install
  $ make install
    LDS     arch/powerpc/boot/zImage.lds
    WRAP    arch/powerpc/boot/zImage.pseries
    WRAP    arch/powerpc/boot/zImage.epapr

In the past the presence of an install file/directory didn't have any
affect.

It seems this changed in:
  d79424137a73 ("kbuild: do not update config when running install targets")

Was that expected?

cheers