Safe to delete old files in /usr/lib?

[Markus Edemalm]

Hello,

My system was first installed as 10.0-RELEASE. I have since upgraded to 10.1, 10.1-STABLE, 10.2-RELEASE and is now at 10.2-RELEASE-p8.
I’ve rebuild from source and followed the steps in the handbook. Everything is fine… but:

I see many files in /usr/lib with old dates, apparently they are no longer installed during upgrades.

My /etc/make.conf looks like this:

NO_PROFILE=true
WITHOUT_X11=yes

Today, January the 4th, I upgraded to -p8. The newly installed files has todays date, i.e ”Jan  4”.
If I do:

ls -lF /usr/lib | grep -v 'Jan  4' | awk {'print $9'}

…I get the following list of (obsolete?) files and folders with older dates.

aout/
compat/
libBlocksRuntime.a
libalias.a
libalias_cuseeme.a
libalias_dummy.a
libalias_ftp.a
libalias_irc.a
libalias_nbt.a
libalias_pptp.a
libalias_skinny.a
libalias_smedia.a
libarchive.a
libasn1.a
libauditd.a
libavl.a
libbegemot.a
libbsdxml.a
libbsm.a
libbsnmp.a
libbsnmptools.a
libbz2.a
libc++.a
libc++.so
libc.a
libc.so
libc_nonshared.a
libcalendar.a
libcam.a
libcom_err.a
libcompat.a
libcompiler_rt.a
libcrypt.a
libctf.a
libcxxrt.a
libdevinfo.a
libdevstat.a
libdialog.a
libdpv.a
libdtrace.a
libdwarf.a
libedit.a
libelf.a
libexecinfo.a
libfetch.a
libfigpar.a
libfl.a
libform.a
libformw.a
libgcc_eh.a
libgcov.a
libgeom.a
libgnuregex.a
libgomp.a
libgpib.a
libgssapi.a
libgssapi_krb5.a
libgssapi_ntlm.a
libgssapi_spnego.a
libhdb.a
libheimbase.a
libheimntlm.a
libheimsqlite.a
libhistory.a
libhx509.a
libipsec.a
libipx.a
libjail.a
libkadm5clnt.a
libkadm5srv.a
libkafs5.a
libkdc.a
libkiconv.a
libkrb5.a
libkvm.a
libl.a
libln.a
liblzma.a
libm.a
libmagic.a
libmd.a
libmemstat.a
libmenu.a
libmenuw.a
libmp.a
libmt.a
libncurses.a
libncursesw.a
libnetgraph.a
libngatm.a
libnvpair.a
libopie.a
libpam.a
libpanel.a
libpanelw.a
libpcap.a
libpmc.a
libproc.a
libprocstat.a
libradius.a
libreadline.a
libroken.a
librpcsec_gss.a
librpcsvc.a
librt.a
librtld_db.a
libsbuf.a
libsmb.a
libssl.a
libssp.a
libssp_nonshared.a
libstand.a
libstdbuf.a
libstdthreads.a
libtacplus.a
libthr.a
libthread_db.a
libufs.a
libugidfw.a
libulog.a
libumem.a
libusb.a
libusbhid.a
libutil.a
libuutil.a
libvgl.a
libvmmapi.a
libwind.a
libwrap.a
liby.a
libypclnt.a
libz.a
libzfs.a
libzfs_core.a
libzpool.a

Would it be safe to delete them?

/ME