Re: [PATCH v2] macos: do let the build find the gettext headers/libraries/msgfmt

["Torsten Bögershausen" <tboegi@web.de>]

On Sat, Apr 25, 2020 at 12:54:26PM +0000, Johannes Schindelin via GitGitGadget wrote:
> From: Johannes Schindelin <johannes.schindelin@gmx.de>
>
> Apparently a recent Homebrew update now installs `gettext` into a
> subdirectory under /usr/local/, requiring the CFLAGS/LDFLAGS to list
> explicit directories _even_ when asking to force-link the `gettext`
> package.
>
> Likewise, the `msgfmt` tool is no longer in the `PATH`.
>
> While it is unclear which change is responsible for this breakage (that
> most notably only occurs on CI build agents that updated very recently),
> https://github.com/Homebrew/homebrew-core/pull/53489 should fix it.
>
> Nevertheless, let's work around this issue, as there are still quite a
> few build agents out there that need some help in this regard: we
> explicitly do not call `brew update` in our CI/PR builds anymore.
>
> Helped-by: Carlo Marcelo Arenas Belón <carenas@gmail.com>
> Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>

It seems as if things are happening fast in the brew-business.
After debugging (on a local box) and travis-ing (remote) I may have a suggestion
for a better commit-message - I can probably send that out as a patch later today.
What do you think ?

=================================================================
MacOs/brew: Let the build find gettext headers/libraries/msgfmt

Apparently a recent Homebrew update now installs `gettext` into the
subdirectory /usr/local/opt/gettext/[lib/include].

Sometimes the ci job succeeds:
 brew link --force gettext
 Linking /usr/local/Cellar/gettext/0.20.1... 179 symlinks created

And sometimes installing the package "gettext" with force-link fails:
 brew link --force gettext
 Warning: Refusing to link macOS provided/shadowed software: gettext
 If you need to have gettext first in your PATH run:
  echo 'export PATH="/usr/local/opt/gettext/bin:$PATH"' >> ~/.bash_profile

(And the is not the final word either, since MacOs itself says:
 The default interactive shell is now zsh.)

Anyway, The latter requires CFLAGS to include /usr/local/opt/gettext/include
and LDFLAGS to include /usr/local/opt/gettext/lib.

Likewise, the `msgfmt` tool is no longer in the `PATH`.

While it is unclear which change is responsible for this breakage (that
most notably only occurs on CI build agents that updated very recently),
https://github.com/Homebrew/homebrew-core/pull/53489 has fixed it.

Nevertheless, let's work around this issue, as there are still quite a
few build agents out there that need some help in this regard: we
explicitly do not call `brew update` in our CI/PR builds anymore.

Helped-by: Carlo Marcelo Arenas Belón <carenas@gmail.com>
Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>