Hi, I believe there is a regression in make 4.3. To reproduce:
$ make -v GNU Make 4.3 Built for x86_64-alpine-linux-musl Copyright (C) 1988-2020 Free Software Foundation, Inc. License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html> This is free software: you are free to change and redistribute it. There is NO WARRANTY, to the extent permitted by law. $ cat Makefile all: @echo \$(CC) $ make -sf Makefile cc $ cat Makefile | env -i make -sf - make: echo: No such file or directory make: *** [/tmp/GmOCOMgl:2: all] Error 127 Problem was found in the configure script of mandoc (mdocml). CC=`printf "all:\\n\\t@echo \\\$(CC)\\n" | env -i make -sf -` https://cvsweb.bsd.lv/mandoc/configure?rev=1.71&content-type=text/x-cvsweb-markup Downstream bug report: https://gitlab.alpinelinux.org/alpine/aports/issues/11163 Thanks! -nc
