Re: minimum needed Automake version

[Jose E. Marchesi]

Hi Bruno.
    
    
    Indeed, according the Automake's NEWS file, at least two bugs relating to
    dependencies and subdir-object were fixed in version 1.16. This appears
    to be a third one, fixed as well in version 1.16.
    
    So, the fix is to
      - use Automake 1.16.2 in the CI - done,
      - require Automake 1.16 or newer - proposed patch attached.

OK for master.
Thanks!
    
    >From 51294bf80bceb4a444e9a0f804d20b32be96e84f Mon Sep 17 00:00:00 2001
    From: Bruno Haible <address@hidden>
    Date: Sun, 17 May 2020 11:56:25 +0200
    Subject: [PATCH] build: Bump minimum needed Automake version.
    
    * bootstrap.conf (buildreq): Require automake >= 1.16.
    ---
     ChangeLog      | 5 +++++
     bootstrap.conf | 2 +-
     2 files changed, 6 insertions(+), 1 deletion(-)
    
    diff --git a/ChangeLog b/ChangeLog
    index 59f0a96..b8bd973 100644
    --- a/ChangeLog
    +++ b/ChangeLog
    @@ -1,3 +1,8 @@
    +2020-05-17  Bruno Haible  <address@hidden>
    +
    +   build: Bump minimum needed Automake version.
    +   * bootstrap.conf (buildreq): Require automake >= 1.16.
    +
     2020-05-17  Jose E. Marchesi  <address@hidden>
     
        * poke/pk-map.c (pk_map_load_parsed_map): Use pk_type_code and
    diff --git a/bootstrap.conf b/bootstrap.conf
    index 1a41833..895fb63 100644
    --- a/bootstrap.conf
    +++ b/bootstrap.conf
    @@ -137,7 +137,7 @@ fi
     # Build prerequisites
     buildreq="\
     autoconf    2.62
    -automake    1.14
    +automake    1.16
     flex        2.5.37
     gettext     0.18.2
     pkg-config  -