[Automake-NG] [FYI] Merge branch 'master' into ng/master

[Stefano Lattarini]

commit 529d8ecb28e9c6fd7fdcde76e1ed373b15a67135
Merge: 67d6546 6d7399c
Author: Stefano Lattarini <address@hidden>
Date:   Fri Jun 15 15:37:19 2012 +0200

    Merge branch 'master' into ng/master

    * master:
      automake: stop supporting "%KEY?iftrue:iffalse%" transforms
      am: stop using "%KEY:iffalse?iftrue%" transforms
      tests: minor reorganization of few tests
      fixup: adjust t/list-of-tests.mk for renamed/added tests
      subdirs: enhance coverage, tweak and rename few tests
      sync: update files from upstream with "make fetch"
      py-compile: consistently quote 'like this', not `like this'.
      docs: recursive make considered harmful
      docs: clean rules are not run in reverse order of build rules anymore
      silent: new $(AM_V_P) variable, tell if we're running in silent mode
      refactor: silent rules handling (a little)
      refactor: &define_verbose_var: accept a third optional argument

    + Extra non-trivial edits:

    * t/dir-named-obj-is-bad.sh, t/sourcefile-in-subdir.sh: Delete, it's how
    the old (and in Automake-NG obsolete and removed) tests 't/subdir3.sh'
    and 't/subdir7.sh' have been respectively renamed in mainline Automake.
    * t/silent6.sh: Don't disable the 'portability-recursive' warnings, they
    are not anymore used nor supported by Automake-NG.
    * automake.in: Adjust calls to subroutines '&Automake::Variable::define'
    and '&define_variable' to the different Automake-NG APIs and signature.

    Signed-off-by: Stefano Lattarini <address@hidden>