Follow-up Comment #5, bug #65588 (group make): I am experiencing a situation with GNU Make 4.4.1 that is I expect will be resolved with the changes under consideration.
Can you possibly advise me how I can test it in my environment. I will build
make if needed.
In the following 4 one-liners, the first 3 work as expected but only the 4th
segfaults, resulting from the combination of using both .ONESHELL and special
characters in .SHELLFLAGS.
$ make -E $'SHELL=echo\n.SHELLFLAGS=hello\nall:\n\tworld\n\tsecond world' -s
hello world
hello second world
$ make -E $'.ONESHELL:\nSHELL=echo\n.SHELLFLAGS=hello\nall:\n\tworld\n\tsecond
world' -s
hello world
second world
$ make -E $'SHELL=echo\n.SHELLFLAGS="hello"\nall:\n\tworld\n\tsecond world'
-s
hello world
hello second world
$ make -E
$'.ONESHELL:\nSHELL=echo\n.SHELLFLAGS="hello"\nall:\n\tworld\n\tsecond world'
-s
/bin/sh -c "hello" world
second world
Segmentation fault (core dumped)
FWIW - I don't use `echo` as my SHELL. My example is meant to be minimal and
illustrative. I encountered this while trying to use
SHELL=duckdb
.SHELLFLAGS= -c "attach 'mwftk.ddb'" -c
I have a workaround, but would like to have this fix.
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