[Vm-dev] [OpenSmalltalk/opensmalltalk-vm] e37c31: Several fixes to Windows makefiles.

[Eliot Miranda]

  Branch: refs/heads/Cog
  Home:   https://github.com/OpenSmalltalk/opensmalltalk-vm
  Commit: e37c31fba7824cd99b21b4f774ce6b878f777f5d
      https://github.com/OpenSmalltalk/opensmalltalk-vm/commit/e37c31fba7824cd99b21b4f774ce6b878f777f5d
  Author: Eliot Miranda <eliot.miranda at gmail.com>
  Date:   2021-10-05 (Tue, 05 Oct 2021)

  Changed paths:
    M building/win32x86/common/Makefile
    M building/win32x86/common/Makefile.msvc
    M building/win32x86/common/Makefile.msvc.clang.rules
    M building/win32x86/common/Makefile.msvc.plugin
    M building/win32x86/common/Makefile.plugin
    M building/win32x86/common/Makefile.rules
    M building/win64x64/common/Makefile
    M building/win64x64/common/Makefile.msvc
    M building/win64x64/common/Makefile.msvc.clang.rules
    M building/win64x64/common/Makefile.msvc.plugin
    M building/win64x64/common/Makefile.msvc.rules
    M building/win64x64/common/Makefile.plugin
    M building/win64x64/common/Makefile.rules

  Log Message:
  -----------
  Several fixes to Windows makefiles.
Get the paths right in dep files and don't inlcude phony targets for headers.
Don't build an implib for an external plugin.
Make the print-foo targets et al PHONY
Introduce an always PHONY target to ensure internal and external plugins are
always visited by a submake.