Created attachment 498766 [details] emerge --info The compilation fails with the following error: xenlockprof.c: In function ‘main’: xenlockprof.c:100:53: error: ‘%s’ directive writing up to 39 bytes into a region of size between 17 and 37 [-Werror=format-overflow=] sprintf(name, "unknown type(%d) %d lock %s", data[j].type, ^~ In file included from /usr/include/stdio.h:936:0, from /var/tmp/portage/app-emulation/xen-tools-4.8.2-r1/work/xen-4.8.2/tools/misc/../../tools/libxc/include/xenctrl.h:33, from xenlockprof.c:13: /usr/include/bits/stdio2.h:33:10: note: ‘__builtin___sprintf_chk’ output between 24 and 83 bytes into a destination of size 60 return __builtin___sprintf_chk (__s, __USE_FORTIFY_LEVEL - 1, ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ __bos (__s), __fmt, __va_arg_pack ()); ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ cc1: all warnings being treated as errors There exists a patch for this error: https://patchwork.kernel.org/patch/9662249/
https://github.com/gentoo/gentoo/pull/5962
https://github.com/gentoo/gentoo/commit/6b9ff912c8bc4db4d4cafe3d72e5803904391725 Thanks for reporting.
