GNU bug report logs - #55846
make bootstrap -j2 fails on macOS

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Package: emacs;

Reported by: Mattias Engdegård <mattiase <at> acm.org>

Date: Wed, 8 Jun 2022 10:43:02 UTC

Severity: normal

Done: Mattias Engdegård <mattiase <at> acm.org>

Bug is archived. No further changes may be made.

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Message #5 received at submit <at> debbugs.gnu.org (full text, mbox):

From: Mattias Engdegård <mattiase <at> acm.org>
To: bug-gnu-emacs <at> gnu.org
Subject: make bootstrap -j2 fails on macOS
Date: Wed, 8 Jun 2022 12:41:54 +0200

nextstep/Makefile.in has the rule

${ns_check_file} ${ns_appdir}: ${srcdir}/${ns_appsrc} ${ns_appsrc}
	rm -rf ${ns_appdir}
	${MKDIR_P} ${ns_appdir}
	( cd ${srcdir}/${ns_appsrc} ; tar cfh - . ) | \
	  ( cd ${ns_appdir} ; umask 022; tar xf - )
	[ "`cd ${srcdir} && /bin/pwd`" = "`/bin/pwd`" ] || \
	  ( cd ${ns_appsrc} ; tar cfh - . ) | \
	    ( cd ${ns_appdir} ; umask 022; tar xf - )
	touch ${ns_appdir}

but because of its dual targets, ns_check_file and ns_appdir, it is unsafe to use in parallel builds and seems in fact often to be invoked twice at the same time, which leads to general confusion and eventual build failure.
This bug report was last modified 2 years and 347 days ago.

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