But this is the mod_perl mailing list.  It is the place to which
one sends reports of bugs or problems with mod_perl.  I sent such
a report, citing this undefined symbol when building mod_perl2.

It is hard for me to imagine that the fact that I gave the perl
build process a list of directories to append to @INC should
affect the presence or absence of a symbol in the resultant perl
binary.  The only time that perl will even consult those
directories are when it is looking for a module name that it
doesn't find in the 5.10.1 directories.

There is not much in the modules in @INC directories that is
necessarily connected to "major versions of perl".  Of course
it's possible that some older modules may not work as well with
a new version as with older versions, but in this case it's the
responsibility of the author to work out and release a new
version that will hopefully work equally well with the older
and newer perls.  And any module can specify the oldest version
of perl (or other modules on which it depends) that it will
work with.

I always maintain my perl modules with -MCPAN's r command, and
upgrade those for which new versions are available on a regular
basis.

I don't know the command 'ack' that you used in your work below,
but it looks like it examined source files in a subdirectory of
your home directory (~).

Do you have a perl5.10.1 binary that you have used in conjunction
with mod_perl2?

If so, can you please cd to the directory that contains that
binary (/usr/local/bin?) and enter a grep command like I used:

grep Perl_pad_sv perl5*

and see if your 5.10.1 binary contains the symbol?  And if so,
how did your binary come to be?

Thanks,
cmac


On Sep 1, 2009, at 9:32 PM, Fred Moyer wrote:

[cc'ing the list as to not break the thread]

On Tue, Sep 1, 2009 at 7:41 PM, <cr...@animalhead.com> wrote:
I have always included previous perl libraries in the @INC of
new builds.  And it has always worked, with the single
exception of building mod_perl2 this time.  All of the perl
scripts and modules on my site work well under the new 5.10.1.

I don't know enough here to say one way or the other about this, but
you're mixing major versions of perl (5.10 vs 5.8)

The Perl 5 Porters would be a good place for these issues.  But you
are seeing unresolved symbol errors when trying to use different major
versions of Perl.  That is enough circumstantial evidence that if I
were in your shoes, I'd use a separate 5.10 install.  But p5p could
probably give a more educated analysis of this.


Aside from the pain of re-downloading all kinds of modules
as they prove to be needed over the next year or so, I know
there are items in the 5.8.7 libraries from my Internet
Hosting Provider, that are needed to run software from the IHP.

I can certainly build a 5.10.1 without the otherlibs, and
locate it somewhere else than in /usr/local/bin.  Will that
process completely replace all of:

/usr/local/lib/perl5/5.10.1/i386-freebsd
/usr/local/lib/perl5/5.10.1
/usr/local/lib/perl5/site_perl/5.10.1/i386-freebsd
/usr/local/lib/perl5/site_perl/5.10.1
??

If so, I suppose could copy them somewhere before the
build, and copy them back after the build.

In "Non-Boolean Build Options" on

http://perl.apache.org/docs/2.0/user/install/install.html,

I don't see a command to tell the mod_perl build process to
use a particular perl.  If I say $perl_other Makefile.PL
in the modperl-2.x directory, does that do it?

Thanks for being there,
cmac


On Sep 1, 2009, at 5:58 PM, Fred Moyer wrote:

Can you please cc the list on all replies?

On Tue, Sep 1, 2009 at 5:41 PM, <cr...@animalhead.com> wrote:

cd /build/perl-5.10.1/
make veryclean
./Configure -Dd_dosuid

-Dotherlibdirs=/usr/local/lib/perl5/5.8.9:/usr/local/lib/perl5/ site_perl/5.8.9:/usr/local/lib/perl5/5.8.8:/usr/local/lib/perl5/ site_perl/5.8.8:/usr/local/lib/perl5/5.8.7:/usr/local/lib/perl5/ site_perl/5.8.7:/usr/local/lib/perl5/vendor_perl/5.8.7
-Dmydomain=animalhead.com

Why are you configuring 5.10.1 with 5.8.x libs?

Can you try a build without otherlibdirs?


   change optimization '-O' to '-O2'
   search other versions? [5.8.9 5.8.8 5.8.7] none
   change email 'xxxxx...@animalhead.com' to 'macke...@...'

make
make test                      <-- no errors for 5.10.1
sudo make install


On Sep 1, 2009, at 11:23 AM, Fred Moyer wrote:

On Tue, Sep 1, 2009 at 9:27 AM, <cr...@animalhead.com> wrote:

A bit more data on the problem reported below:

/build/modperl-2.0 $ grep -r Perl_pad_sv *
Binary file src/modules/perl/mod_perl.so matches
/build/modperl-2.0 $ ll src/modules/perl/mod_perl.so
-rwxr-xr-x  1 user  wheel  1559168 Aug 29 21:22
src/modules/perl/mod_perl.so
/build/modperl-2.0 $ cd /usr/local/bin

/usr/local/bin $ ll perl5*
lrwxr-xr-x 1 root wheel 10 Aug 29 16:04 perl5 -> perl5.10.1
-rwxr-xr-x  3 root  wheel  1078522 Aug 30 00:52 perl5.10.1
-rwxr-xr-x  2 root  wheel   949166 Nov 14  2005 perl5.8.7
-rwxr-xr-x  1 root  wheel  2050866 Nov 18  2008 perl5.8.8
-rwxr-xr-x  1 root  wheel   951373 Jan  7  2009 perl5.8.9
/usr/local/bin $ grep -r Perl_pad_sv perl*
Binary file perl5.8.7 matches
Binary file perl5.8.8 matches
Binary file perl5.8.9 matches
/usr/local/bin $

So the symbol in the error message is wanted by the newly-built
mod_perl, but perl 5.10.1 does not include it.

Yes that's exactly what the error message says, but the mailing
list is so quiet that I wonder if my filters have started eating
its emails...

Perl_pad_sv is in there.  How did you install 5.10.1?

ph...@harpua ~/perl-5.10.1 $ ack Perl_pad_sv
embed.h
638:#define pad_sv                      Perl_pad_sv
2958:#define pad_sv(a)          Perl_pad_sv(aTHX_ a)

makedef.pl
627:                Perl_pad_sv

pad.c
927:Perl_pad_sv(pTHX_ PADOFFSET po)

proto.h
2386:PERL_CALLCONV SV*  Perl_pad_sv(pTHX_ PADOFFSET po);



cmac

On Aug 30, 2009, at 11:49 AM, Fred Moyer wrote:

On Sat, Aug 29, 2009 at 9:43 PM, <cr...@animalhead.com> wrote:

-------------8<---------- Start Bug Report ------------8<----------
1. Problem Description:

I have upgraded to Apache 2.2.13 and Perl 5.10.1. Both seem to be
working
OK,
although Apache with using my old mod_perl 2.04 that uses perl
5.8.9.

Have you rebuilt your mod_perl 2.0.4 instance from scratch using 5.10.1? Undefined symbol warnings like this usually mean you are trying to use a version of mod_perl that has been built with another
perl binary.

Suggest running make clean, then:

perl Makefile.PL MP_APXS=/path/to/my/httpd/apxs
make
make test

Yes, that is pretty much exactly what I've done. Here is the command
file
(that precedes make):

#! /bin/sh
CFLAGS="-DVERIO -DVERIO_VPS"; export CFLAGS
LDFLAGS="-L/usr/local/lib"; export LDFLAGS
perl Makefile.PL MP_APXS=/usr/local/apache2/bin/apxs


make test in both the release mod_perl 2.0.4 and the latest snapshot
2.0.5
gives the same error:

$ make test
cd "src/modules/perl" && make
/usr/bin/perl -Iblib/arch -Iblib/lib  t/TEST -clean
APACHE_TEST_GROUP= APACHE_TEST_HTTPD= APACHE_TEST_PORT=
APACHE_TEST_USER=
APACHE_TEST_APXS= /usr/bin/perl -Iblib/arch -Iblib/lib t/ TEST
-bugreport
-verbose=0
/usr/local/apache2/bin/httpd  -d /build/modperl-2.0/t -f
/build/modperl-2.0/t/conf/httpd.conf -D APACHE2
using Apache/2.2.13 (prefork MPM)

waiting 120 seconds for server to start: .httpd: Syntax error on
line
17
of
/build/modperl-2.0/t/conf/httpd.conf: Cannot load
/build/modperl-2.0/src/modules/perl/mod_perl.so into server:
/build/modperl-2.0/src/modules/perl/mod_perl.so: Undefined symbol
"Perl_pad_sv"


2. Used Components and their Configuration:

*** mod_perl version 2.000005

*** using /build/modperl-2.0/lib/Apache2/BuildConfig.pm

*** Makefile.PL options:
 MP_APR_LIB     => aprext
 MP_APXS        => /usr/local/apache2/bin/apxs
 MP_COMPAT_1X   => 1
 MP_GENERATE_XS => 1
 MP_LIBNAME     => mod_perl
 MP_USE_DSO     => 1


*** /usr/local/apache2/bin/httpd -V
Server version: Apache/2.2.13 (Unix)
Server built:   Aug 29 2009 16:57:40
Server's Module Magic Number: 20051115:23
Server loaded:  APR 1.3.8, APR-Util 1.3.9
Compiled using: APR 1.3.8, APR-Util 1.3.9
Architecture:   32-bit
Server MPM:     Prefork
 threaded:     no
 forked:     yes (variable process count)
Server compiled with....
 -D APACHE_MPM_DIR="server/mpm/prefork"
 -D APR_HAS_SENDFILE
 -D APR_HAS_MMAP
 -D APR_HAVE_IPV6 (IPv4-mapped addresses enabled)
 -D APR_USE_FLOCK_SERIALIZE
 -D APR_USE_PTHREAD_SERIALIZE
 -D SINGLE_LISTEN_UNSERIALIZED_ACCEPT
 -D APR_HAS_OTHER_CHILD
 -D AP_HAVE_RELIABLE_PIPED_LOGS
 -D DYNAMIC_MODULE_LIMIT=128
 -D HTTPD_ROOT="/usr/local/apache2"
 -D SUEXEC_BIN="/usr/local/apache2/bin/suexec"
 -D DEFAULT_PIDLOG="logs/httpd.pid"
 -D DEFAULT_SCOREBOARD="logs/apache_runtime_status"
 -D DEFAULT_LOCKFILE="logs/accept.lock"
 -D DEFAULT_ERRORLOG="logs/error_log"
 -D AP_TYPES_CONFIG_FILE="conf/mime.types"
 -D SERVER_CONFIG_FILE="conf/httpd.conf"

*** /usr/bin/ldd /usr/local/apache2/bin/httpd
/usr/local/apache2/bin/httpd:
    libz.so.3 => /lib/libz.so.3 (0x28209000)
    libm.so.4 => /lib/libm.so.4 (0x2821a000)
    libpcre.so.0 => /usr/local/lib/libpcre.so.0 (0x28230000)
libaprutil-1.so.3 => /usr/local/apache2/lib/ libaprutil-1.so.3
(0x2825c000)
    libexpat.so.6 => /usr/local/lib/libexpat.so.6 (0x2827c000)
    libapr-1.so.3 => /usr/local/apache2/lib/libapr-1.so.3
(0x2829d000)
    libcrypt.so.3 => /lib/libcrypt.so.3 (0x282c5000)
    libpthread.so.2 => /lib/libpthread.so.2 (0x282dd000)
    libc.so.6 => /lib/libc.so.6 (0x28301000)


*** (apr|apu)-config linking info

-L/usr/local/apache2/lib -laprutil-1 -lexpat -L/usr/ local/lib
 -L/usr/local/apache2/lib -lapr-1 -lcrypt  -lpthread



*** /usr/local/bin/perl -V
Summary of my perl5 (revision 5 version 10 subversion 1)
configuration:

 Platform:
 osname=freebsd, osvers=6.3-release, archname=i386-freebsd
uname='freebsd animalhead.com 6.3-release freebsd 6.3- release #3:
fri
jan
23 16:43:41 mst 2009 r...@fc:usrsrcsysi386compilevkern i386 '
 config_args='-Dd_dosuid



-Dotherlibdirs=/usr/local/lib/perl5/5.8.9:/usr/local/lib/ perl5/5.8.8:/usr/local/lib/perl5/5.8.7
-Dvendorprefix=/usr/local -Dmydomain=animalhead.com'
 hint=recommended, useposix=true, d_sigaction=define
 useithreads=undef, usemultiplicity=undef
 useperlio=define, d_sfio=undef, uselargefiles=define,
usesocks=undef
 use64bitint=undef, use64bitall=undef, uselongdouble=undef
 usemymalloc=n, bincompat5005=undef
 Compiler:
 cc='cc', ccflags ='-DHAS_FPSETMASK -DHAS_FLOATINGPOINT_H
-fno-strict-aliasing -pipe -I/usr/local/include',
 optimize='-O',
 cppflags='-DHAS_FPSETMASK -DHAS_FLOATINGPOINT_H
-fno-strict-aliasing
-pipe -I/usr/local/include'
 ccversion='', gccversion='3.4.6 [FreeBSD] 20060305',
gccosandvers=''
intsize=4, longsize=4, ptrsize=4, doublesize=8, byteorder=1234 d_longlong=define, longlongsize=8, d_longdbl=define, longdblsize=12 ivtype='long', ivsize=4, nvtype='double', nvsize=8, Off_t='off_t',
lseeksize=8
 alignbytes=4, prototype=define
 Linker and Libraries:
 ld='cc', ldflags ='-Wl,-E  -L/usr/local/lib'
 libpth=/usr/lib /usr/local/lib
 libs=-lgdbm -lm -lcrypt -lutil -lc
 perllibs=-lm -lcrypt -lutil -lc
 libc=, so=so, useshrplib=false, libperl=libperl.a
 gnulibc_version=''
 Dynamic Linking:
 dlsrc=dl_dlopen.xs, dlext=so, d_dlsymun=undef, ccdlflags=' '
cccdlflags='-DPIC -fPIC', lddlflags='-shared -L/usr/local/ lib'


Characteristics of this binary (from libperl):
 Compile-time options: PERL_DONT_CREATE_GVSV PERL_MALLOC_WRAP
                    USE_LARGE_FILES USE_PERLIO
 Built under freebsd
 Compiled at Aug 29 2009 20:24:18
 %ENV:
 PERL_LWP_USE_HTTP_10="1"
 @INC:
 /usr/local/lib/perl5/5.10.1/i386-freebsd
 /usr/local/lib/perl5/5.10.1
 /usr/local/lib/perl5/site_perl/5.10.1/i386-freebsd
 /usr/local/lib/perl5/site_perl/5.10.1
 /usr/local/lib/perl5/site_perl/5.8.9
 /usr/local/lib/perl5/site_perl/5.8.8
 /usr/local/lib/perl5/site_perl/5.8.7
 /usr/local/lib/perl5/site_perl
 /usr/local/lib/perl5/vendor_perl/5.10.1/i386-freebsd
 /usr/local/lib/perl5/vendor_perl/5.10.1
 /usr/local/lib/perl5/vendor_perl/5.8.7
 /usr/local/lib/perl5/vendor_perl
 /usr/local/lib/perl5/5.8.9/i386-freebsd
 /usr/local/lib/perl5/5.8.9
 /usr/local/lib/perl5/5.8.8/i386-freebsd
 /usr/local/lib/perl5/5.8.8
 /usr/local/lib/perl5/5.8.7/i386-freebsd
 /usr/local/lib/perl5/5.8.7
 .

*** Packages of interest status:

Apache2            : -
Apache2::Request   : -
CGI                : 3.45
ExtUtils::MakeMaker: 6.48, 6.54, 6.55_02
LWP                : 5.831
mod_perl           : -
mod_perl2          : -


3. This is the core dump trace: (if you get a core dump):

 [CORE TRACE COMES HERE]

This report was generated by t/REPORT on Sun Aug 30 04:28:22 2009
GMT.

-------------8<---------- End Bug Report --------------8<----------










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