On Fri, 23 Feb 2018, Petr Pisar via Pcre-dev wrote: > I tested it successfully on GNU/Linux on these platforms:
Thank you. > Please note gcc-8 with glibc-2.27 emmits this warning: > > gcc -DHAVE_CONFIG_H -I. -pthread -O2 -g -pipe -Wall > -Werror=format-security -Wp,-D_FORTIFY_SOURCE=2 -Wp,-D_GLIBCXX_ASSERTIONS > -fexceptions -fstack-protector-strong -grecord-gcc-switches > -specs=/usr/lib/rpm/redhat/redhat-hardened-cc1 > -specs=/usr/lib/rpm/redhat/redhat-annobin-cc1 -m64 -mtune=generic > -fasynchronous-unwind-tables -fstack-clash-protection -mcet -fcf-protection > -c -o pcregrep-pcregrep.o `test -f 'pcregrep.c' || echo './'`pcregrep.c > pcregrep.c: In function 'main': > pcregrep.c:2767:31: warning: '__builtin___sprintf_chk' may write a > terminating nul past the end of the destination [-Wformat-overflow=] > sprintf(buff2, "%s%.*s", buff1, fulllen - baselen - 2, opbra + 1); It turns out that gcc 7.2.1 (which I am currently on) also issues this warning when -Wformat-overflow=2 is specified. There were two instances in pcre2grep and three in pcregrep. I have put that warning into my standard development setup now, and fixed both pcregrep and pcre2grep with patches that are slightly different to yours. Thanks for the report. Philip -- Philip Hazel -- ## List details at https://lists.exim.org/mailman/listinfo/pcre-dev
