Hello all.  Please cc: me in replies.

Using Perl 5.8.0 under Win32 with the VC++ compiler, we are running into a
problem where the interpreter crashes when one attempts to "use" any XS
module.  Using the independant perl.exe works, but calling perl_parse() from
our code does not.  It tries to dereference a null pointer.

The same embedding code works under Unix with XS modules.

I have tried to make our call to perl_parse() look like perlmain.c's, and it
has not helped.  I am pretty much out of ideas as to how to fix this.  Any
suggestions?  Is this a known issue?  Thanks in advance.

Here is a partial stacktrace from "use Data::Dumper;".  The address and
library name vary for other extensions.  Sorry I don't have better debug
information, I can't figure VC++ out well enough.  It appears that the
dynamic loader is succeeding since the location where the crash occurs is in
the dumper.dll library.

DUMPER! 01e83659()
PERL58! Perl_pp_entersub + 967 bytes
PERL58! Perl_runops_standard + 59 bytes
PERL58! Perl_call_sv + 930 bytes
PERL58! Perl_call_list + 1040 bytes
PERL58! Perl_call_list + 457 bytes
PERL58! Perl_newATTRSUB + 2858 bytes
PERL58! Perl_utilize + 701 bytes
PERL58! Perl_yyparse + 1823 bytes
PERL58! perl_parse + 2728 bytes
PERL58! perl_parse + 433 bytes


Output from perl -V:


Summary of my perl5 (revision 5 version 8 subversion 0) configuration:
  Platform:
    osname=MSWin32, osvers=4.0, archname=MSWin32-x86-perlio
    uname=''
    config_args='undef'
    hint=recommended, useposix=true, d_sigaction=undef
    usethreads=undef use5005threads=undef useithreads=undef usemultiplicity=undef
    useperlio=define d_sfio=undef uselargefiles=undef usesocks=undef
    use64bitint=undef use64bitall=undef uselongdouble=undef
    usemymalloc=n, bincompat5005=undef
  Compiler:
    cc='cl', ccflags ='-nologo -Gf -W3 -MD -DNDEBUG -O1 -DWIN32 -D_CONSOLE -DNO_STRICT 
  -DUSE_PERLIO -DPERL_MSVCRT_READFIX',
    optimize='-MD -DNDEBUG -O1',
    cppflags='-DWIN32'
    ccversion='', gccversion='', gccosandvers=''
    intsize=4, longsize=4, ptrsize=4, doublesize=8, byteorder=1234
    d_longlong=undef, longlongsize=8, d_longdbl=define, longdblsize=10
    ivtype='long', ivsize=4, nvtype='double', nvsize=8, Off_t='off_t', lseeksize=4
    alignbytes=8, prototype=define
  Linker and Libraries:
    ld='link', ldflags ='-nologo -nodefaultlib -release  
-libpath:"g:\isv\3.0\lib\CORE"  -machine:x86'
    libpth=d:/fbe/1.0/vs6/VC98\lib
    libs=  oldnames.lib kernel32.lib user32.lib gdi32.lib winspool.lib  comdlg32.lib 
advapi32.lib shell32.lib ole32.lib oleaut32.lib  netapi32.lib uuid.lib wsock32.lib 
mpr.lib winmm.lib  version.lib odbc32.lib odbccp32.lib msvcrt.lib
    perllibs=  oldnames.lib kernel32.lib user32.lib gdi32.lib winspool.lib  
comdlg32.lib advapi32.lib shell32.lib ole32.lib oleaut32.lib  netapi32.lib uuid.lib 
wsock32.lib mpr.lib winmm.lib  version.lib odbc32.lib odbccp32.lib msvcrt.lib
    libc=msvcrt.lib, so=dll, useshrplib=yes, libperl=perl58.lib
    gnulibc_version='undef'
  Dynamic Linking:
    dlsrc=dl_win32.xs, dlext=dll, d_dlsymun=undef, ccdlflags=' '
    cccdlflags=' ', lddlflags='-dll -nologo -nodefaultlib -release  
-libpath:"g:\isv\3.0\lib\CORE"  -machine:x86'


Characteristics of this binary (from libperl): 
  Compile-time options:
  Built under MSWin32
  Compiled at Mar  7 2003 12:25:07
  @INC:
    d:/cruvolo/invio/adptdev/perllib/1.0/lib
    .


Thanks for looking at this.

-Chris

--
Chris Ruvolo
Invio Software
[EMAIL PROTECTED]
Tel: 650-937-0230 x132
Fax: 650-937-0240

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