[mp1] Apache::Symbol and perl Symbol.pm possible clash due to bareword gensym reference

Wed, 07 Apr 2004 05:40:15 -0700

I am having problems compiling mod_perl as the following errors report.

...
make[1]: Entering directory `/usr/local/perl-cpan/build/mod_perl-1.29/Symbol'
Running Mkbootstrap for Apache::Symbol ()
chmod 644 Symbol.bs
rm -f ../blib/arch/auto/Apache/Symbol/Symbol.so
LD_RUN_PATH="" gcc -shared -L/usr/local/lib Symbol.o -o ../blib/arch/auto/Apache/Symbol/Symbol.so
chmod 755 ../blib/arch/auto/Apache/Symbol/Symbol.so
cp Symbol.bs ../blib/arch/auto/Apache/Symbol/Symbol.bs
chmod 644 ../blib/arch/auto/Apache/Symbol/Symbol.bs
Bareword "gensym" not allowed while "strict subs" in use at /usr/lib/perl5/5.8.3/Pod/Parser.pm line 1158.
Bareword "gensym" not allowed while "strict subs" in use at /usr/lib/perl5/5.8.3/Pod/Parser.pm line 1158.
Compilation failed in require at /usr/lib/perl5/5.8.3/Pod/Man.pm line 30.
BEGIN failed--compilation aborted at /usr/lib/perl5/5.8.3/Pod/Man.pm line 30.
Compilation failed in require at /usr/lib/perl5/5.8.3/ExtUtils/Command/MM.pm line 86.
make[1]: *** [manifypods] Error 255
make[1]: Leaving directory `/usr/local/perl-cpan/build/mod_perl-1.29/Symbol'
make: *** [subdirs] Error 2

The offending /usr/lib/perl5/5.8.3/Pod/Parser.pm line 1158 is

my ($in_fh, $out_fh) = (gensym, gensym) if ($] < 5.6);

I thought that I could fix it by changing the reference to Symbol::gensym() from the gensym reference.

for instance, this works fine as a small test program to resolve the bareword issue ...

#!/usr/bin/perl -w
use strict;
require Symbol;
import Symbol;
my ($in_fh,  $out_fh) = (Symbol::gensym(), Symbol::gensym())  if ($] < 5.6);

But when I do that, it seems that I get a clash on perl's Symbol.pm and Apache::Symbol with this new error

Undefined subroutine &Symbol::gensym called at /usr/lib/perl5/5.8.3/Pod/Parser.pm line 1158.

perl -v follows:

Summary of my perl5 (revision 5.0 version 8 subversion 3) configuration:
Platform:
osname=linux, osvers=2.4.21-2.elsmp, archname=i386-linux-thread-multi
uname='linux porky.devel.redhat.com 2.4.21-2.elsmp #1 smp wed sep 17 15:00:55 edt 2003 i686 i686 i386 gnulinux '
config_args='-des -Doptimize=-O2 -g -pipe -march=i386 -mcpu=i686 -Dversion=5.8.3 -Dmyhostname=localhost [EMAIL PROTECTED] -Dcc=gcc -Dcf_by=Red Hat, Inc. -Dinstallprefix=/usr -Dprefix=/usr -Darchname=i386-linux -Dvendorprefix=/usr -Dsiteprefix=/usr -Duseshrplib -Dusethreads -Duseithreads -Duselargefiles -Dd_dosuid -Dd_semctl_semun -Di_db -Ui_ndbm -Di_gdbm -Di_shadow -Di_syslog -Dman3ext=3pm -Duseperlio -Dinstallusrbinperl -Ubincompat5005 -Uversiononly -Dpager=/usr/bin/less -isr -Dinc_version_list=5.8.2 5.8.1 5.8.0'
hint=recommended, useposix=true, d_sigaction=define
usethreads=define use5005threads=undef useithreads=define usemultiplicity=define
useperlio=define d_sfio=undef uselargefiles=define usesocks=undef
use64bitint=undef use64bitall=undef uselongdouble=undef
usemymalloc=n, bincompat5005=undef
Compiler:
cc='gcc', ccflags ='-D_REENTRANT -D_GNU_SOURCE -DTHREADS_HAVE_PIDS -DDEBUGGING -fno-strict-aliasing -I/usr/local/include -D_LARGEFILE_SOURCE -D_FILE_OFFSET_BITS=64 -I/usr/include/gdbm',
optimize='-O2 -g -pipe -march=i386 -mcpu=i686',
cppflags='-D_REENTRANT -D_GNU_SOURCE -DTHREADS_HAVE_PIDS -DDEBUGGING -fno-strict-aliasing -I/usr/local/include -I/usr/include/gdbm'
ccversion='', gccversion='3.3.3 20040311 (Red Hat Linux 3.3.3-3)', 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='gcc', ldflags =' -L/usr/local/lib'
libpth=/usr/local/lib /lib /usr/lib
libs=-lnsl -lgdbm -ldb -ldl -lm -lcrypt -lutil -lpthread -lc
perllibs=-lnsl -ldl -lm -lcrypt -lutil -lpthread -lc
libc=/lib/libc-2.3.3.so, so=so, useshrplib=true, libperl=libperl.so
gnulibc_version='2.3.3'
Dynamic Linking:
dlsrc=dl_dlopen.xs, dlext=so, d_dlsymun=undef, ccdlflags='-rdynamic -Wl,-rpath,/usr/lib/perl5/5.8.3/i386-linux-thread-multi/CORE'
cccdlflags='-fPIC', lddlflags='-shared -L/usr/local/lib'


Characteristics of this binary (from libperl):
Compile-time options: DEBUGGING MULTIPLICITY USE_ITHREADS USE_LARGE_FILES PERL_IMPLICIT_CONTEXT
Built under linux
Compiled at Apr 3 2004 13:27:55
%ENV:
PERLLIB="/usr/local/perl5.005_02/lib/perl5:."
@INC:
/usr/local/perl5.005_02/lib/perl5
.
/usr/lib/perl5/5.8.3/i386-linux-thread-multi
/usr/lib/perl5/5.8.3
/usr/lib/perl5/site_perl/5.8.3/i386-linux-thread-multi
/usr/lib/perl5/site_perl/5.8.2/i386-linux-thread-multi
/usr/lib/perl5/site_perl/5.8.1/i386-linux-thread-multi
/usr/lib/perl5/site_perl/5.8.0/i386-linux-thread-multi
/usr/lib/perl5/site_perl/5.8.3
/usr/lib/perl5/site_perl/5.8.2
/usr/lib/perl5/site_perl/5.8.1
/usr/lib/perl5/site_perl/5.8.0
/usr/lib/perl5/site_perl
/usr/lib/perl5/vendor_perl/5.8.3/i386-linux-thread-multi
/usr/lib/perl5/vendor_perl/5.8.2/i386-linux-thread-multi
/usr/lib/perl5/vendor_perl/5.8.1/i386-linux-thread-multi
/usr/lib/perl5/vendor_perl/5.8.0/i386-linux-thread-multi
/usr/lib/perl5/vendor_perl/5.8.3
/usr/lib/perl5/vendor_perl/5.8.2
/usr/lib/perl5/vendor_perl/5.8.1
/usr/lib/perl5/vendor_perl/5.8.0
/usr/lib/perl5/vendor_perl
.


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