following http://www.openwall.com/lists/musl/2017/02/13/8 ,http://www.openwall.com/lists/musl/2017/03/04/1 andÂ> gnu tar showed me segfaults, because he passed a zero msgid1 causing __mo_lookup segfault, we should add a check in dcngettext to avoid it(if (!msgid1) goto notrans;): #2 0x00007ffff7d82a6f in dcngettext (domainname=0x6737a0 "tar", msgid1=0x0, msgid2=0x0, n=1, category=5) at src/locale/dcngettext.c:211