bug#68996: [PATCH] Respect warnings added in GNU Make 4.4.90

[Collin Funk]

Tags: patch

Tags: patch

When building Emacs with recent versions of GNU Make every object file
built will result in a warning like so:

../src/verbose.mk:58: warning: invalid variable reference ' '
  CC       emacs-module.o

This doesn't prevent Emacs from building but makes it slightly harder
to see any build output. I attached a patch that should work for all
versions of GNU Make, both before and after the change. However it
also causes the indentation to disappear in-front of CC and ELC which
looks a bit strange. It doesn't seem like there is a valid way to do
this at the moment. More discussion about this change can be seen
here: https://savannah.gnu.org/bugs/?65273

Feel free to change my patch if you see a better way to solve these
warnings.

Also, I have never committed to Emacs. This change feels trivial but
results in 34 lines changed. Therefore I was unsure if this patch
could be Copyright-paperwork-exempt tagged. Feel free to email me off
list if I must fill them out. Thanks

Collin

In GNU Emacs 30.0.50 (build 1, x86_64-pc-linux-gnu, GTK+ Version
 3.24.38, cairo version 1.16.0) of 2024-02-07 built on debian
Repository revision: ed2450e79b597e0306f14b542e934a90dfd9786f
Repository branch: master
Windowing system distributor 'The X.Org Foundation', version 11.0.12101007
System Description: Debian GNU/Linux 12 (bookworm)

Configured using:
 'configure --prefix=/home/collin/.local --with-sound=no
 --with-libsystemd --without-gconf --without-compress-install
 --with-native-compilation=yes --with-cairo --with-x=yes
 --with-x-toolkit=gtk3 --with-harfbuzz --with-tree-sitter --with-json
 --with-imagemagick'

0001-Respect-warnings-added-in-GNU-Make-4.4.90.patch
Description: Text Data