[bug #61700] Makefile.am: update file with automake changes

[Bjarni Ingi Gislason]

URL:
  <https://savannah.gnu.org/bugs/?61700>

                 Summary: Makefile.am: update file with automake changes
                 Project: GNU troff
            Submitted by: bjarniig
            Submitted on: Sat 18 Dec 2021 10:59:27 PM UTC
                Category: Core
                Severity: 3 - Normal
              Item Group: Build/Installation
                  Status: None
                 Privacy: Public
             Assigned to: None
             Open/Closed: Open
         Discussion Lock: Any
         Planned Release: None

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Details:

Subject: Makefile.am: update file with automake changes

  The file NEWS-2.0 in the automake repository states:

This file (NEWS-2.0) lists several incompatibilities planned for a
future Automake 2.0 release.

[...]

  - The ACLOCAL_AMFLAGS special make variable will be fully deprecated in
    Automake 2.0: it will raise warnings in the "obsolete" category (but
    still no hard error of course, for compatibilities with the many, many
    packages that still relies on that variable).  You are advised to
    start relying on the new Automake support for AC_CONFIG_MACRO_DIRS
    instead (which was introduced in Automake 1.13).

-- End of citation

  Needed changes in groff

1) Makefile.am

  Add '#' in front of "ACLOCAL_AMFLAGS = -I m4 -I gnulib_m4" and add
something like

# "ACLOCAL_AMFLAGS" was replaced with
# "AC_CONFIG_MACRO_DIRS([m4 gnulib_m4])" in configure.ac

2) configure.ac

Add line

AC_CONFIG_MACRO_DIRS([m4 gnulib_m4])

3) bootstrap.conf

  Change "automake      1.12.8" to "automake    1.13"





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