Package: libeconf Version: 0.4.4+dfsg1-1 Severity: minor Tags: patch User: ubuntu-de...@lists.ubuntu.com Usertags: origin-ubuntu kinetic ubuntu-patch
Hi Andreas, libeconf is failing to build in Ubuntu with a format string error from gcc: [...] cc -Ieconftool.p -I. -I.. -I../include -fdiagnostics-color=always -D_FILE_OFFSET_BITS=64 -Wall -Winvalid-pch -Wextra -Wpedantic -O0 -D_GNU_SOURCE=1 -DXTSTRINGDEFINES -Werror -fstack-protector-strong -funwind-tables -fasynchronous-unwind-tables -fstack-clash-protection -Werror=return-type -flto=8 -Wbad-function-cast -Wcast-align -Wcast-qual -Winline -Wmissing-declarations -Wmissing-prototypes -Wnested-externs -Wshadow -Wstrict-prototypes -Wundef -g -O2 -ffile-prefix-map=/<<PKGBUILDDIR>>=. -flto=auto -ffat-lto-objects -flto=auto -ffat-lto-objects -fstack-protector-strong -Wformat -Werror=format-security -Wdate-time -D_FORTIFY_SOURCE=2 -fPIE -MD -MQ econftool.p/util_econftool.c.o -MF econftool.p/util_econftool.c.o.d -o econftool.p/util_econftool.c.o -c ../util/econftool.c ../util/econftool.c: In function ‘main’: ../util/econftool.c:591:84: error: ‘__snprintf_chk’ output may be truncated before the last format character [-Werror=format-truncation=] 591 | snprintf(conf_basename, strlen(argv[optind + 1]) - strlen(conf_suffix) + 1, "%s", argv[optind + 1]); | ^ [...] (https://launchpad.net/ubuntu/+source/libeconf/0.4.4+dfsg1-1/+build/23574046) I've looked over the code and I think there's no real problem with what the code's doing, it's just defying gcc's static analysis for format-truncation. To get the package building in Ubuntu, rather than refactoring the code to make gcc happy, I've suppressed the warning as in the attached patch. This build failure doesn't currently affect Debian, so I've marked this bug report severity 'minor'; but I expect at some point this will start to affect Debian as well, possibly when glibc is updated to 2.34. -- Steve Langasek Give me a lever long enough and a Free OS Debian Developer to set it on, and I can move the world. Ubuntu Developer https://www.debian.org/ slanga...@ubuntu.com vor...@debian.org
diff -Nru libeconf-0.4.4+dfsg1/debian/rules libeconf-0.4.4+dfsg1/debian/rules --- libeconf-0.4.4+dfsg1/debian/rules 2022-02-05 14:15:28.000000000 -0800 +++ libeconf-0.4.4+dfsg1/debian/rules 2022-07-08 08:41:11.000000000 -0700 @@ -13,6 +13,7 @@ # package maintainers to append LDFLAGS #export DEB_LDFLAGS_MAINT_APPEND = -Wl,--as-needed +export DEB_CFLAGS_MAINT_APPEND = -Wno-error=format-truncation %: dh $@ --buildsystem=meson