createlang fails

I'm having a bit of trouble getting the plperl language to work on my
postgresql install (Win NT, sp5)
Perl was built on this machine with mingw and postgresql was built
with msys/mingw.

E:\Pg>createlang plperl dave
createlang: language installation failed: ERROR: could not load library
"E:/msys/local/pgsql/lib/plperl.dll": dynamic load error

The plperl.dll is infact there. Can anyone point me in the correct
direction?

Thanks in advance

psql (PostgreSQL) 8.1devel

Summary of my perl5 (revision 5 version 8 subversion 6) configuration:
Platform:
osname=MSWin32, osvers=4.0, archname=MSWin32-x86-multi-thread
uname=''
config_args='undef'
hint=recommended, useposix=true, d_sigaction=undef
usethreads=define use5005threads=undef useithreads=define
usemultiplicity=de
fine
useperlio=define d_sfio=undef uselargefiles=define usesocks=undef
use64bitint=undef use64bitall=undef uselongdouble=undef
usemymalloc=y, bincompat5005=undef
Compiler:
cc='gcc', ccflags ='-s -O2 -DWIN32 -DHAVE_DES_FCRYPT
-DPERL_DEBUGGING_MSTATS
-DPERL_IMPLICIT_CONTEXT -DPERL_IMPLICIT_SYS -fno-strict-aliasing
-DPERL_MSVCRT_
READFIX',
optimize='-s -O2',
cppflags='-DWIN32'
ccversion='', gccversion='', gccosandvers=''
intsize=4, longsize=4, ptrsize=4, doublesize=8, byteorder=1234
d_longlong=undef, longlongsize=8, d_longdbl=define, longdblsize=12
ivtype='long', ivsize=4, nvtype='double', nvsize=8, Off_t='long
long', lseek
size=8
alignbytes=8, prototype=define
Linker and Libraries:
ld='g++', ldflags ='-s -L"E:\perl\lib\CORE" -L"E:\msys\MinGW\lib"'
libpth=E:\msys\MinGW\lib
libs= -lmsvcrt -lmoldname -lkernel32 -luser32 -lgdi32 -lwinspool
-lcomdlg32
-ladvapi32 -lshell32 -lole32 -loleaut32 -lnetapi32 -luuid -lws2_32 -lmpr
-lwinmm
-lversion -lodbc32
perllibs= -lmsvcrt -lmoldname -lkernel32 -luser32 -lgdi32
-lwinspool -lcomdl
g32 -ladvapi32 -lshell32 -lole32 -loleaut32 -lnetapi32 -luuid -lws2_32
-lmpr -lw
inmm -lversion -lodbc32
libc=-lmsvcrt, so=dll, useshrplib=yes, libperl=libperl58.a
gnulibc_version='undef'
Dynamic Linking:
dlsrc=dl_win32.xs, dlext=dll, d_dlsymun=undef, ccdlflags=' '
cccdlflags=' ', lddlflags='-mdll -s -L"E:\perl\lib\CORE"
-L"E:\msys\MinGW\li
b"'

Characteristics of this binary (from libperl):
Compile-time options: MULTIPLICITY USE_ITHREADS USE_LARGE_FILES
PERL_IMPLICIT_
CONTEXT PERL_IMPLICIT_SYS
Built under MSWin32
Compiled at Jan 29 2005 16:35:56
@INC:
E:/perl/lib
E:/perl/site/lib
.