On Fri, 1 Sep 2017 20:11:29 +0200, William Gathoye wrote: >I cannot debug further since it hasn't been build with gdb debug >symbols Hi, you need to build it and probably, not necessarily, one or the other dependency yourself: [rocketmouse@archlinux tmp]$ pacman -Qo /usr/lib/security/pam_lastlog.so /usr/lib/security/pam_lastlog.so is owned by pam 1.3.0-1 [rocketmouse@archlinux tmp]$ asp checkout pam [snip] [rocketmouse@archlinux tmp]$ ls -hl pam/trunk/PKGBUILD -rw-r--r-- 1 rocketmouse rocketmouse 2.1K Sep 1 20:25 pam/trunk/PKGBUILD https://wiki.archlinux.org/index.php/Debug_-_Getting_Traces#General [rocketmouse@archlinux tmp]$ pacman -Qi pam | grep Depends\ On Depends On : glibc cracklib libtirpc pambase Regards, Ralf