I don't think lvm2 is actually needed to install and run cryptsetup. These packages seem unrelated. I also checked on Archlinux and they don't have lvm2 as a dependency. Reproducible: Always Steps to Reproduce: 1. Try to install sys-fs/cryptsetup 2. Notice that sys-fs/lvm2 needs to be installed Actual Results: sys-fs/lvm2 is a dependency Expected Results: sys-fs/lvm2 should not be a dependency
sys-fs/lvm2 provides libdevmapper.so Now let's have a look what we have in cryptsetup's configure.ac file: > grep -F libdevmapper cryptsetup-2.4.3/configure.ac | head -n 1 AC_CHECK_HEADER(libdevmapper.h,,[AC_MSG_ERROR([You need the device-mapper library.])]) Now let's have a look what uses libdevmapper in cryptsetup: # for fle in $(qlist -Ce cryptsetup | grep -E 'bin/|/lib') ; do if [[ ! -L "${fle}" ]] ; then ldd ${fle} 2>/dev/null | grep -Fq devmapp && echo ${fle} ; fi ; done /usr/lib64/libcryptsetup.so.12.7.0 /sbin/cryptsetup /sbin/veritysetup /sbin/integritysetup So how do you think, cryptsetup can be used without lvm2 package?
You're right, it will not work as-is. It seems at Archlinux they split the `lvm2` package and there is a separate `device-mapper` package which contains only libdevmapper-event.so and libdevmapper.so. If it is not planned / reasonable for Gentoo to provide these libraries in a separate package, then I agree that lvm2 is indeed needed. Feel free to cancel this bug if splitting the lvm2 package doesn't make sense.
(In reply to Jonas Frei from comment #2) > You're right, it will not work as-is. It seems at Archlinux they split the > `lvm2` package and there is a separate `device-mapper` package which > contains only libdevmapper-event.so and libdevmapper.so. USE="device-mapper-only" has the same effect for Gentoo's sys-fs/lvm2 package. > If it is not > planned / reasonable for Gentoo to provide these libraries in a separate > package, then I agree that lvm2 is indeed needed. Feel free to cancel this > bug if splitting the lvm2 package doesn't make sense. That's up for the base-system team to decide.
