[gentoo-user] Maybe bug? (glibc related?)

[Elias Diem]

Hi

I just got the following while running Vim's testsuite.

<output>
*** buffer overflow detected ***: vim terminated; report to <http://bugs.gentoo.org/>
Makefile:151: recipe for target 'af.ck' failed
make[2]: *** [af.ck] Killed
</output>

The compiler gave me the following warning.

<output>
gcc -c -I. -Iproto -DHAVE_CONFIG_H      -O1         -o objects/if_cscope.o if_cscope.c
In file included from /usr/include/string.h:639:0,
                 from os_unix.h:542,
                 from vim.h:282,
                 from eval.c:14:
In function ‘strcpy’,
    inlined from ‘add_nr_var’ at eval.c:24396:5,
    inlined from ‘call_user_func’ at eval.c:24061:5:
/usr/include/bits/string3.h:110:3: warning: call to __builtin___strcpy_chk will always overflow destination buffer
   return __builtin___strcpy_chk (__dest, __src, __bos (__dest));
   ^
In function ‘strcpy’,
    inlined from ‘call_user_func’ at eval.c:24067:5:
/usr/include/bits/string3.h:110:3: warning: call to __builtin___strcpy_chk will always overflow destination buffer
   return __builtin___strcpy_chk (__dest, __src, __bos (__dest));
   ^
In function ‘strcpy’,
    inlined from ‘add_nr_var’ at eval.c:24396:5,
    inlined from ‘call_user_func’ at eval.c:24082:5:
/usr/include/bits/string3.h:110:3: warning: call to __builtin___strcpy_chk will always overflow destination buffer
   return __builtin___strcpy_chk (__dest, __src, __bos (__dest));
   ^
In function ‘strcpy’,
    inlined from ‘add_nr_var’ at eval.c:24396:5,
    inlined from ‘call_user_func’ at eval.c:24084:5:
/usr/include/bits/string3.h:110:3: warning: call to __builtin___strcpy_chk will always overflow destination buffer
   return __builtin___strcpy_chk (__dest, __src, __bos (__dest));
   ^
</output>

This seems to only happen with -O1. I don't get this 
behaviour with -O2.

Do you need more info?

Should I file a bug?

-- 
Greetings
Elias