Subject: bug#68545: warnings from GNU Make 3.81

From: Mattias Engdegård <[email-masked]>
Date: Wed, 17 Jan 2024 19:50:13 +0100

Building with GNU Make 3.81, which seems to be supported, gives the warnings

/Applications/Xcode.app/Contents/Developer/usr/bin/make -C java bootstrap-clean
Makefile:157: warning: overriding commands for target `&'
Makefile:151: warning: ignoring old commands for target `&'
Makefile:168: warning: overriding commands for target `&'
Makefile:157: warning: ignoring old commands for target `&'
Makefile:296: warning: overriding commands for target `&'
Makefile:168: warning: ignoring old commands for target `&'

That version probably doesn't like '&'. Given that I'm not building anything in the java/ directory anyway, perhaps  that sub-make can be avoided altogether for platforms other than Android?