Re: undefined symbol: mro_meta_init on 5.10.0

On 13/02/12 13:08, Tim Bunce wrote:
> On Sun, Feb 05, 2012 at 09:04:23PM +0000, Dave Mitchell wrote:
>>
>> Anyway, attached is the final patch.
>> I've tested it under 5.8.1, 5.8.9, 5.14.2 and 5.15.7, with various
>> permutations of threaded builds.
>
> I've just noticed that DBI 1.617_901 has been failing on perl 5.10.0
> http://matrix.cpantesters.org/?dist=DBI+1.617_901
>
> The issue seems to be "undefined symbol: mro_meta_init" e.g.:
> http://www.cpantesters.org/cpan/report/ba083076-540a-11e1-a48f-e7fb434ae6f1
>
> Any ideas?
>
> Tim.

Same happens for me on 5.10.0:

cc -c   -fno-strict-aliasing -pipe -I/usr/local/include -D_LARGEFILE_SOURCE -D_FILE_OFFSET_BITS=64 -O2   -DVERSION=\"1.618\" -DXS_VERSION=\"1.618\" -fPIC "-I/home/martin/perl5/perlbrew/perls/perl-5.10.0/lib/5.10.0/i686-linux/CORE"  -W -Wall -Wpointer-arith -Wbad-function-cast -Wno-comment -Wno-sign-compare -Wno-cast-qual -Wmissing-noreturn -Wno-unused-parameter -DDBI_NO_THREADS DBI.c
DBI.xs: In function ‘method_cache_dup’:
DBI.xs:199: warning: format not a string literal and no format arguments
DBI.xs: In function ‘inner_method_lookup’:
DBI.xs:239: warning: implicit declaration of function ‘mro_meta_init’
DBI.xs:239: warning: pointer/integer type mismatch in conditional expression
DBI.xs:259: warning: format not a string literal and no format arguments
DBI.xs:270: warning: pointer/integer type mismatch in conditional expression
DBI.xs: In function ‘_sort_hash_keys’:
DBI.xs:366: warning: format not a string literal and no format arguments
DBI.xs:367: warning: format not a string literal and no format arguments
Running Mkbootstrap for DBI ()
chmod 644 DBI.bs

$ nm -a ./blib/arch/auto/DBI/DBI.so | grep mro_
          U mro_meta_init

So it is definitely undefined.

It seems to come from the following in DBI.xs:

#ifdef HvMROMETA /*introduced in 5.9.5 */
                 + HvMROMETA(stash)->cache_gen
#endif

As far as I got during my lunch.

Martin
-- 
Martin J. Evans
Easysoft Limited
http://www.easysoft.com