suddenly, no LO startup on ubuntu 15.10 - 64

I’ve been using libreoffice for years, suddenly with no apparent reason, the below. I tried getting rid of ~/.config/libreoffice - no use. writer and calc.

Oddly, on my laptop. with a very similar configuration - it works as always.

libreoffice --calc
terminate called after throwing an instance of ‘com::sun::star::uno::RuntimeException’

Fatal exception: Signal 6
Stack:
/usr/lib/libreoffice/program/libuno_sal.so.3(+0x38820)[0x7fc67d6bb820]
/usr/lib/libreoffice/program/libuno_sal.so.3(+0x38bb3)[0x7fc67d6bbbb3]
/usr/lib/libreoffice/program/libuno_sal.so.3(+0x38ce8)[0x7fc67d6bbce8]
/lib/x86_64-linux-gnu/libc.so.6(+0x352f0)[0x7fc67d2ee2f0]
/lib/x86_64-linux-gnu/libc.so.6(gsignal+0x37)[0x7fc67d2ee267]
/lib/x86_64-linux-gnu/libc.so.6(abort+0x16a)[0x7fc67d2efeca]
/usr/lib/x86_64-linux-gnu/libstdc++.so.6(_ZN9__gnu_cxx27__verbose_terminate_handlerEv+0x16d)[0x7fc676ab7b7d]
/usr/lib/x86_64-linux-gnu/libstdc++.so.6(+0x8d9c6)[0x7fc676ab59c6]
/usr/lib/x86_64-linux-gnu/libstdc++.so.6(+0x8da11)[0x7fc676ab5a11]
/usr/lib/x86_64-linux-gnu/libstdc++.so.6(+0x8dc29)[0x7fc676ab5c29]
/usr/lib/libreoffice/program/libmergedlo.so(+0xfbb156)[0x7fc67e894156]
/usr/lib/libreoffice/program/libmergedlo.so(+0xfbcb50)[0x7fc67e895b50]
/usr/lib/libreoffice/program/libmergedlo.so(+0xfb1191)[0x7fc67e88a191]
/usr/lib/libreoffice/program/libmergedlo.so(+0xf9ce3b)[0x7fc67e875e3b]
/usr/lib/libreoffice/program/libmergedlo.so(+0xf87301)[0x7fc67e860301]
/usr/lib/libreoffice/program/libmergedlo.so(+0xf87d0e)[0x7fc67e860d0e]
/usr/lib/libreoffice/program/libmergedlo.so(+0xf883d0)[0x7fc67e8613d0]
/usr/lib/libreoffice/program/libmergedlo.so(+0xf88a37)[0x7fc67e861a37]
/usr/lib/libreoffice/program/libmergedlo.so(+0xf8dbca)[0x7fc67e866bca]
/usr/lib/libreoffice/program/libmergedlo.so(+0x267b5a7)[0x7fc67ff545a7]
/usr/lib/libreoffice/program/libmergedlo.so(+0x267c209)[0x7fc67ff55209]
/usr/lib/libreoffice/program/libmergedlo.so(_ZN3utl10ConfigItemC2ERKN3rtl8OUStringE14ConfigItemMode+0xbd)[0x7fc67ff4924d]
/usr/lib/libreoffice/program/libmergedlo.so(+0x26d4a58)[0x7fc67ffada58]
/usr/lib/libreoffice/program/libmergedlo.so(_ZN19SvtSysLocaleOptionsC1Ev+0x85)[0x7fc67ffae045]
/usr/lib/libreoffice/program/libmergedlo.so(+0x26fbed3)[0x7fc67ffd4ed3]
/usr/lib/libreoffice/program/libmergedlo.so(_ZN12SvtSysLocaleC1Ev+0x55)[0x7fc67ffd4fb5]
/usr/lib/libreoffice/program/libmergedlo.so(+0x2a0481c)[0x7fc6802dd81c]
/usr/lib/libreoffice/program/libmergedlo.so(_ZN11AllSettingsC1Ev+0x46)[0x7fc6802dd936]
/usr/lib/libreoffice/program/libmergedlo.so(_ZN11Application12InitSettingsEP10ImplSVData+0x3a)[0x7fc6802e437a]
/usr/lib/libreoffice/program/libmergedlo.so(_ZN11Application11GetSettingsEv+0x2d)[0x7fc6802e43ed]
/usr/lib/libreoffice/program/libvclplug_gtklo.so(+0x39332)[0x7fc66a862332]
/usr/lib/libreoffice/program/libmergedlo.so(_Z7InitVCLv+0x292)[0x7fc6802e8562]
/usr/lib/libreoffice/program/libmergedlo.so(+0x2a10406)[0x7fc6802e9406]
/usr/lib/libreoffice/program/libmergedlo.so(_Z6SVMainv+0x22)[0x7fc6802e9512]
/usr/lib/libreoffice/program/libmergedlo.so(soffice_main+0xa2)[0x7fc67f40d412]
/usr/lib/libreoffice/program/soffice.bin[0x4006fb]
/lib/x86_64-linux-gnu/libc.so.6(__libc_start_main+0xf0)[0x7fc67d2d9a40]
/usr/lib/libreoffice/program/soffice.bin[0x400739]

I’m leaning towards having a package installed which is wrong version for that. But since 15.10 is an obsolete version, we should be able to ignore this problem altogether.