Log Message:
Update to 0.40.0

  Fix build failure with bmake-20240909

  Fix tests/test_subprj_dash and derivatives failed with
  bmake-20240909

  feature dprintf: add __printflike(2,3) to dprintf(3)

  mkc_compiler_settings:
     * add CUSTOM.attribute_{aligned,always_inline,const,noreturn,pure,printflike}
       to compiler settings
     * add path to features to bmake

  Do not pass ${MAKEFLAGS} to recursive make invocation

  Fix examples/xxzip/Makefile