Public bug reported:
Currently lxc FTBFS due to a GCC-7 bug.
There's a upstream report for gcc-7 [1], but meanwhile lxc upstream has
applied a workaround that fixes the build [1].
cgroups/cgfsng.c: In function ‘cgfsng_create’:
cgroups/cgfsng.c:1381:23: error: ‘__builtin___snprintf_chk’ output may be
truncated before the last format character [-Werror=format-truncation=]
snprintf(offset, 5, "-%d", idx);
^~~~~
In file included from /usr/include/stdio.h:938:0,
from cgroups/cgfsng.c:44:
/usr/include/x86_64-linux-gnu/bits/stdio2.h:64:10: note:
‘__builtin___snprintf_chk’ output between 3 and 6 bytes into a destination of
size 5
return __builtin___snprintf_chk (__s, __n, __USE_FORTIFY_LEVEL - 1,
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
__bos (__s), __fmt, __va_arg_pack ());
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
cc1: all warnings being treated as errors
[1] https://gcc.gnu.org/bugzilla/show_bug.cgi?id=78969
[2] https://github.com/lxc/lxc/commit/66b66624fce21606d11f24f5b615776074d212ae
** Affects: lxc (Ubuntu)
Importance: Undecided
Status: New
** Affects: lxc (Debian)
Importance: Unknown
Status: Unknown
** Bug watch added: Debian Bug tracker #853531
https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=853531
** Also affects: lxc (Debian) via
https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=853531
Importance: Unknown
Status: Unknown
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https://bugs.launchpad.net/bugs/1711449
Title:
[FTBFS] lxc build fails due to gcc-7
Status in lxc package in Ubuntu:
New
Status in lxc package in Debian:
Unknown
Bug description:
Currently lxc FTBFS due to a GCC-7 bug.
There's a upstream report for gcc-7 [1], but meanwhile lxc upstream
has applied a workaround that fixes the build [1].
cgroups/cgfsng.c: In function ‘cgfsng_create’:
cgroups/cgfsng.c:1381:23: error: ‘__builtin___snprintf_chk’ output may be
truncated before the last format character [-Werror=format-truncation=]
snprintf(offset, 5, "-%d", idx);
^~~~~
In file included from /usr/include/stdio.h:938:0,
from cgroups/cgfsng.c:44:
/usr/include/x86_64-linux-gnu/bits/stdio2.h:64:10: note:
‘__builtin___snprintf_chk’ output between 3 and 6 bytes into a destination of
size 5
return __builtin___snprintf_chk (__s, __n, __USE_FORTIFY_LEVEL - 1,
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
__bos (__s), __fmt, __va_arg_pack ());
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
cc1: all warnings being treated as errors
[1] https://gcc.gnu.org/bugzilla/show_bug.cgi?id=78969
[2] https://github.com/lxc/lxc/commit/66b66624fce21606d11f24f5b615776074d212ae
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