Adrian, newer compilers are better at finding bugs - you may want to read the full trace of the error, it tells you that you likely have a memory overflow when using strncpy() in your package. You should check whether it is right. Unfortunately we can’t help you more specifically, because I don't see any link to what you submitted so can’t look at the code involved.
Cheers, Simon > On May 22, 2020, at 7:25 PM, Adrian Dușa <dusa.adr...@gmail.com> wrote: > > I am trying to submit a package on CRAN, and everything passes ok on all > platforms but Debian, where CRAN responds with an automatic "significant" > warning: > > * checking whether package ‘QCA’ can be installed ... [35s/35s] WARNING > Found the following significant warnings: > /usr/include/x86_64-linux-gnu/bits/string_fortified.h:106:10: warning: > ‘__builtin_strncpy’ output may be truncated copying 12 bytes from a string of > length 79 [-Wstringop-truncation] > See ‘/srv/hornik/tmp/CRAN/QCA.Rcheck/00install.out’ for details. > > > I know the cause of this: using a cursomized version of some external C > library, coupled with <SystemRequirements: GNU make> in the Description. > > But I do not know hot to get past this warning, since it refers to a builtin > GCC function strncpy. As far as I read, this should be solved by a simple GCC > upgrade to the newest version, but that is something outside my code base, > since GCC resides on the CRAN servers. > > In the meantime, to get the package published, did anyone encountered a > similar problem? If so, is there a workaround? > > — > Adrian Dusa > University of Bucharest > Romanian Social Data Archive > Soseaua Panduri nr. 90-92 > 050663 Bucharest sector 5 > Romania > https://adriandusa.eu > > ______________________________________________ > Remail@example.com mailing list > https://stat.ethz.ch/mailman/listinfo/r-devel > ______________________________________________ Rfirstname.lastname@example.org mailing list https://stat.ethz.ch/mailman/listinfo/r-devel