It is a real pity open source software requires closed source compilers !

trying to build with 7.0 gives:
--------------------------------
------ Build started: Project: pythoncore, Configuration: Debug Win32 ------

Compiling...
zipimport.c
yuvconvert.c
xxsubtype.c
weakrefobject.c
unicodeobject.c
unicodectype.c
typeobject.c
tupleobject.c
traceback.c
tokenizer.c
timemodule.c
threadmodule.c
thread.c
sysmodule.c
symtablemodule.c
symtable.c
structseq.c
structmember.c
stropmodule.c
stringobject.c
sliceobject.c
signalmodule.c
shamodule.c
sha512module.c
\Python-2.5\Modules\sha512module.c(146) : error C2059: syntax error : 'bad suffix on number'
\Python-2.5\Modules\sha512module.c(146) : error C2146: syntax error : missing ')' before identifier 'L'
\Python-2.5\Modules\sha512module.c(146) : error C2144: syntax error : '<Unknown>' should be preceded by '<Unknown>'
\Python-2.5\Modules\sha512module.c(146) : error C2144: syntax error : '<Unknown>' should be preceded by '<Unknown>'
\Python-2.5\Modules\sha512module.c(146) : error C2143: syntax error : missing ')' before 'identifier'
\Python-2.5\Modules\sha512module.c(146) : error C2059: syntax error : 'bad suffix on number'
\Python-2.5\Modules\sha512module.c(146) : error C2059: syntax error : 'bad suffix on number'
\Python-2.5\Modules\sha512module.c(146) : error C2059: syntax error : 'bad suffix on number'
\Python-2.5\Modules\sha512module.c(146) : error C2059: syntax error : 'bad suffix on number'
\Python-2.5\Modules\sha512module.c(146) : error C2059: syntax error : 'bad suffix on number'
\Python-2.5\Modules\sha512module.c(146) : error C2059: syntax error : 'bad suffix on number'
\Python-2.5\Modules\sha512module.c(146) : error C2059: syntax error : 'bad suffix on number'
\Python-2.5\Modules\sha512module.c(146) : error C2059: syntax error : 'bad suffix on number'
\Python-2.5\Modules\sha512module.c(146) : error C2059: syntax error : 'bad suffix on number'
\Python-2.5\Modules\sha512module.c(159) : error C2059: syntax error : 'bad suffix on number'
\Python-2.5\Modules\sha512module.c(159) : error C2146: syntax error : missing ')' before identifier 'L'
\Python-2.5\Modules\sha512module.c(159) : error C2144: syntax error : '<Unknown>' should be preceded by '<Unknown>'
\Python-2.5\Modules\sha512module.c(159) : error C2144: syntax error : '<Unknown>' should be preceded by '<Unknown>'
\Python-2.5\Modules\sha512module.c(159) : error C2143: syntax error : missing ')' before 'identifier'
\Python-2.5\Modules\sha512module.c(159) : error C2059: syntax error : 'bad suffix on number'
\Python-2.5\Modules\sha512module.c(159) : error C2059: syntax error : 'bad suffix on number'
\Python-2.5\Modules\sha512module.c(159) : error C2059: syntax error : 'bad suffix on number'
\Python-2.5\Modules\sha512module.c(159) : error C2059: syntax error : 'bad suffix on number'
\Python-2.5\Modules\sha512module.c(159) : error C2059: syntax error : 'bad suffix on number'
\Python-2.5\Modules\sha512module.c(159) : error C2059: syntax error : 'bad suffix on number'
\Python-2.5\Modules\sha512module.c(159) : error C2059: syntax error : 'bad suffix on number'
\Python-2.5\Modules\sha512module.c(159) : error C2146: syntax error : missing ')' before identifier 'L'
\Python-2.5\Modules\sha512module.c(159) : error C2144: syntax error : '<Unknown>' should be preceded by '<Unknown>'
\Python-2.5\Modules\sha512module.c(159) : error C2144: syntax error : '<Unknown>' should be preceded by '<Unknown>'
\Python-2.5\Modules\sha512module.c(159) : error C2143: syntax error : missing ')' before 'identifier'
\Python-2.5\Modules\sha512module.c(159) : error C2059: syntax error : 'bad suffix on number'
\Python-2.5\Modules\sha512module.c(159) : error C2059: syntax error : 'bad suffix on number'
\Python-2.5\Modules\sha512module.c(159) : error C2059: syntax error : 'bad suffix on number'
\Python-2.5\Modules\sha512module.c(159) : error C2059: syntax error : 'bad suffix on number'
\Python-2.5\Modules\sha512module.c(159) : error C2059: syntax error : 'bad suffix on number'
\Python-2.5\Modules\sha512module.c(160) : error C2059: syntax error : 'bad suffix on number'
\Python-2.5\Modules\sha512module.c(160) : error C2146: syntax error : missing ')' before identifier 'L'
\Python-2.5\Modules\sha512module.c(160) : error C2144: syntax error : '<Unknown>' should be preceded by '<Unknown>'
\Python-2.5\Modules\sha512module.c(160) : error C2144: syntax error : '<Unknown>' should be preceded by '<Unknown>'
\Python-2.5\Modules\sha512module.c(160) : error C2143: syntax error : missing ')' before 'identifier'
\Python-2.5\Modules\sha512module.c(160) : error C2059: syntax error : 'bad suffix on number'
\Python-2.5\Modules\sha512module.c(160) : error C2059: syntax error : 'bad suffix on number'
\Python-2.5\Modules\sha512module.c(160) : error C2059: syntax error : 'bad suffix on number'
\Python-2.5\Modules\sha512module.c(160) : error C2059: syntax error : 'bad suffix on number'
\Python-2.5\Modules\sha512module.c(160) : error C2059: syntax error : 'bad suffix on number'
\Python-2.5\Modules\sha512module.c(160) : error C2059: syntax error : 'bad suffix on number'
\Python-2.5\Modules\sha512module.c(160) : error C2059: syntax error : 'bad suffix on number'
\Python-2.5\Modules\sha512module.c(160) : error C2146: syntax error : missing ')' before identifier 'L'
\Python-2.5\Modules\sha512module.c(160) : error C2144: syntax error : '<Unknown>' should be preceded by '<Unknown>'
\Python-2.5\Modules\sha512module.c(160) : error C2144: syntax error : '<Unknown>' should be preceded by '<Unknown>'
\Python-2.5\Modules\sha512module.c(160) : error C2143: syntax error : missing ')' before 'identifier'
\Python-2.5\Modules\sha512module.c(160) : error C2059: syntax error : 'bad suffix on number'
\Python-2.5\Modules\sha512module.c(160) : error C2059: syntax error : 'bad suffix on number'
\Python-2.5\Modules\sha512module.c(160) : error C2059: syntax error : 'bad suffix on number'
\Python-2.5\Modules\sha512module.c(160) : error C2059: syntax error : 'bad suffix on number'
\Python-2.5\Modules\sha512module.c(160) : error C2059: syntax error : 'bad suffix on number'
\Python-2.5\Modules\sha512module.c(161) : error C2059: syntax error : 'bad suffix on number'
\Python-2.5\Modules\sha512module.c(161) : error C2146: syntax error : missing ')' before identifier 'L'
\Python-2.5\Modules\sha512module.c(161) : error C2144: syntax error : '<Unknown>' should be preceded by '<Unknown>'
\Python-2.5\Modules\sha512module.c(161) : error C2144: syntax error : '<Unknown>' should be preceded by '<Unknown>'
\Python-2.5\Modules\sha512module.c(161) : error C2143: syntax error : missing ')' before 'identifier'
\Python-2.5\Modules\sha512module.c(161) : error C2059: syntax error : 'bad suffix on number'
\Python-2.5\Modules\sha512module.c(161) : error C2059: syntax error : 'bad suffix on number'
\Python-2.5\Modules\sha512module.c(161) : error C2059: syntax error : 'bad suffix on number'
\Python-2.5\Modules\sha512module.c(161) : error C2059: syntax error : 'bad suffix on number'
\Python-2.5\Modules\sha512module.c(161) : error C2059: syntax error : 'bad suffix on number'
\Python-2.5\Modules\sha512module.c(161) : error C2059: syntax error : 'bad suffix on number'
\Python-2.5\Modules\sha512module.c(161) : error C2059: syntax error : 'bad suffix on number'
\Python-2.5\Modules\sha512module.c(161) : error C2146: syntax error : missing ')' before identifier 'L'
\Python-2.5\Modules\sha512module.c(161) : error C2144: syntax error : '<Unknown>' should be preceded by '<Unknown>'
\Python-2.5\Modules\sha512module.c(161) : error C2144: syntax error : '<Unknown>' should be preceded by '<Unknown>'
\Python-2.5\Modules\sha512module.c(161) : error C2143: syntax error : missing ')' before 'identifier'
\Python-2.5\Modules\sha512module.c(161) : error C2059: syntax error : 'bad suffix on number'
\Python-2.5\Modules\sha512module.c(161) : error C2059: syntax error : 'bad suffix on number'
\Python-2.5\Modules\sha512module.c(161) : error C2059: syntax error : 'bad suffix on number'
\Python-2.5\Modules\sha512module.c(161) : error C2059: syntax error : 'bad suffix on number'
\Python-2.5\Modules\sha512module.c(161) : error C2059: syntax error : 'bad suffix on number'
\Python-2.5\Modules\sha512module.c(162) : error C2059: syntax error : 'bad suffix on number'
\Python-2.5\Modules\sha512module.c(162) : error C2146: syntax error : missing ')' before identifier 'L'
\Python-2.5\Modules\sha512module.c(162) : error C2144: syntax error : '<Unknown>' should be preceded by '<Unknown>'
\Python-2.5\Modules\sha512module.c(162) : error C2144: syntax error : '<Unknown>' should be preceded by '<Unknown>'
\Python-2.5\Modules\sha512module.c(162) : error C2143: syntax error : missing ')' before 'identifier'
\Python-2.5\Modules\sha512module.c(162) : error C2059: syntax error : 'bad suffix on number'
\Python-2.5\Modules\sha512module.c(162) : error C2059: syntax error : 'bad suffix on number'
\Python-2.5\Modules\sha512module.c(162) : error C2059: syntax error : 'bad suffix on number'
\Python-2.5\Modules\sha512module.c(162) : error C2059: syntax error : 'bad suffix on number'
\Python-2.5\Modules\sha512module.c(162) : error C2059: syntax error : 'bad suffix on number'
\Python-2.5\Modules\sha512module.c(162) : error C2059: syntax error : 'bad suffix on number'
\Python-2.5\Modules\sha512module.c(162) : error C2059: syntax error : 'bad suffix on number'
\Python-2.5\Modules\sha512module.c(162) : error C2146: syntax error : missing ')' before identifier 'L'
\Python-2.5\Modules\sha512module.c(162) : error C2144: syntax error : '<Unknown>' should be preceded by '<Unknown>'
\Python-2.5\Modules\sha512module.c(162) : error C2144: syntax error : '<Unknown>' should be preceded by '<Unknown>'
\Python-2.5\Modules\sha512module.c(162) : error C2143: syntax error : missing ')' before 'identifier'
\Python-2.5\Modules\sha512module.c(162) : error C2059: syntax error : 'bad suffix on number'
\Python-2.5\Modules\sha512module.c(162) : fatal error C1013: compiler limit : too many open parentheses
sha256module.c
setobject.c
rotatingtree.c
rgbimgmodule.c
rangeobject.c
pythonrun.c
Python-ast.c
pystrtod.c
pystate.c
pyfpe.c
pyarena.c
posixmodule.c
parsetok.c
parsermodule.c
parser.c
operator.c
obmalloc.c
object.c
node.c
mystrtoul.c
mysnprintf.c
myreadline.c
multibytecodec.c
msvcrtmodule.c
moduleobject.c
modsupport.c
mmapmodule.c
methodobject.c
metagrammar.c
md5module.c
md5.c
mathmodule.c
marshal.c
main.c
longobject.c
listobject.c
listnode.c
itertoolsmodule.c
iterobject.c
intobject.c
importdl.c
import.c
imageop.c
grammar1.c
grammar.c
graminit.c
getversion.c
getplatform.c
getpathp.c
getopt.c
getmtime.c
getcopyright.c
getcompiler.c
getargs.c
genobject.c
gcmodule.c
future.c
funcobject.c
frozen.c
frameobject.c
floatobject.c
firstsets.c
fileobject.c
exceptions.c
errors.c
errnomodule.c
enumobject.c
dynload_win.c
dl_nt.c
dictobject.c
Build cancelled

Build log was saved at "file://c:\Python-2.5\PCbuild\x86-temp-debug\pythoncore\BuildLog.htm"
pythoncore - 95 error(s), 0 warning(s)


---------------------- Done ----------------------