Control: retitle -1 fakeroot 1.25.1-1 breaks fakechroot Control: affects -1 fakechroot mmdebstrap Control: tags -1 + patch
On Sun, 27 Sep 2020 10:30:54 +0200 Johannes 'josch' Schauer <jo...@debian.org> wrote: > your recent upload of fakeroot broke my package mmdebstrap in a way that > I do not yet understand. See for example this CI test which uses > fakeroot via fakechroot: > > https://ci.debian.net/data/autopkgtest/testing/amd64/m/mmdebstrap/7190912/log.gz > > I get an even different error when running mmdebstrap locally with the > new fakeroot version on my system: > > $ mmdebstrap --variant=apt --mode=fakechroot unstable /dev/null > fakechroot: nested operation is not supported > E: need working fakechroot binary > > If I downgrade fakeroot like this: > > $ sudo apt install fakeroot=1.24-1 libfakeroot=1.24-1 > > then everything works fine again. > > Maybe you can shed some light on the situation about what might've > changed between 1.24-1 and 1.25.1-1 that leads to these problems? I bisected the upstream commits and figured out that the problem was introduced by commit 9b26ceaaba9796bc9e18f375be91da16a4aae04d. Upon closer inspection, I noticed, that one renaming from LIB to FAKEROOT_LIB was omitted. The problem is fixed by this patch: --- a/scripts/fakeroot.in +++ b/scripts/fakeroot.in @@ -162,7 +162,7 @@ if test -n "$@LDLIBPATHVAR@"; then fi # ...and preloaded libs if test -n "$@LDPRELOADVAR@"; then - LIB="$FAKEROOT_LIB:$@LDPRELOADVAR@" + FAKEROOT_LIB="$FAKEROOT_LIB:$@LDPRELOADVAR@" fi export FAKEROOT_FD_BASE Without this patch, the value of LD_PRELOAD will be ignored. This in turn breaks other tools that rely on LD_PRELOAD like fakechroot. Without this patch: $ fakechroot fakeroot sh -c 'echo $LD_PRELOAD' libfakeroot-sysv.so With this patch: $ fakechroot fakeroot sh -c 'echo $LD_PRELOAD' libfakeroot-sysv.so:libfakechroot.so Thanks! cheers, josch
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