[ID 20000428.005] Win32 fork support incompatible with GD.pm

GD.pm will fail if perl 5.6 is built with support for fork on
Win32.  Perl will seg fault and die (exit status 139) while
running the tests for the GD module.  Exactly where perl dies
depends on how the tests are run.  If I run "nmake test"
I get to "ok 3".  If I run "perl -Mblib t/GD.t" I can get
to "ok 5".  None of the tests actually fail.

Of the three compile time options required to enable fork,
USE_IMP_SYS seems to be the problem.  GD will build and pass
all test is only USE_MULTI and USE_ITHREADS are enabled.
Here are the versions I used for building GD:
 
     NT     4.0, SP 5      libjpeg   6b
     MSC    5.0            libpng    1.0.6
     perl   5.6.0          zlib      1.1.3
     GD.pm  1.27           freetype  1.1.3
     libgd  1.8.1
 
-- 
Warren Jones
Fluke Corporation

------------------------------------------------------------------------------

Summary of my perl5 (revision 5 version 6 subversion 0) configuration:
  Platform:
    osname=MSWin32, osvers=4.0, archname=MSWin32-x86-multi
    uname=''
    config_args='undef'
    hint=recommended, useposix=true, d_sigaction=undef
    usethreads=undef use5005threads=undef useithreads=undef usemultiplicity=define
    useperlio=undef d_sfio=undef uselargefiles=undef 
    use64bitint=undef use64bitall=undef uselongdouble=undef usesocks=undef
  Compiler:
    cc='cl', optimize='-Od -MD -DNDEBUG', gccversion=
    cppflags='-DWIN32'
    ccflags ='-Od -MD -DNDEBUG -DWIN32 -D_CONSOLE -DNO_STRICT  -DFLUKE  -DPERL_IMPLICIT_CONTEXT -DPERL_IMPLICIT_SYS -DPERL_MSVCRT_READFIX'
    stdchar='char', d_stdstdio=define, usevfork=false
    intsize=4, longsize=4, ptrsize=4, doublesize=8
    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, usemymalloc=n, prototype=define
  Linker and Libraries:
    ld='link', ldflags ='-nologo -nodefaultlib -release  -libpath:"\\engapp.tc.fluke.com\sweng\apps\perl\5.6.0\lib\CORE"  -machine:x86'
    libpth=D:\DevStudio\VC\lib \\engapp.tc.fluke.com\sweng\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
    libc=msvcrt.lib, so=dll, useshrplib=yes, libperl=perl56.lib
  Dynamic Linking:
    dlsrc=dl_win32.xs, dlext=dll, d_dlsymun=undef, ccdlflags=' '
    cccdlflags=' ', lddlflags='-dll -nologo -nodefaultlib -release  -libpath:"\\engapp.tc.fluke.com\sweng\apps\perl\5.6.0\lib\CORE"  -machine:x86'


Characteristics of this binary (from libperl): 
  Compile-time options: MULTIPLICITY PERL_IMPLICIT_CONTEXT PERL_IMPLICIT_SYS
  Built under MSWin32
  Compiled at Apr 28 2000 15:33:25
  @INC:
    \\engapp.tc.fluke.com\sweng\apps\perl\5.6.0\lib
    \\engapp.tc.fluke.com\sweng\apps\perl\site\5.6.0\lib
    .

• [ID 20000428.005] Win32 fork support incompatible with GD.pm by Warren Jones