[SciPy-user] Weave on W2K problems -- more clues

[eric jones]

> 
> I also get the following in the test output:
> 
> WARNING: failed to build import library for gcc. Linking will fail.

Looking at build_tools.py, I think this is associated with the use of
cygwin instead of mingw.  Mingw has a tool called "dlltool" that is used
in converting the python22.lib to a libpython22.a file.  It doesn't look
like cygwin has the same tools.

Can you use mingw instead of cygwin and see if it solves your problems?
You'll need to use the version based on 2.95.3 (mingw1.1 I believe), as
weave doesn't work with the latest version. 

> E
> warning: specified build_dir '_bad_path_' does not exist or is not
> writable. Trying default locations

This warning is supposed to happen -- it is part of a unit test.

> 
> Not sure if that helps with respect to the g++ problems

Hopefully moving to mingw fixes your problems.

Good luck,
Eric

> 
> 
> 
> ----- Original Message -----
> From: "eric jones" <eric at enthought.com>
> Date: Fri, 15 Nov 2002 16:31:29 -0600
> To: <scipy-user at scipy.net>
> Subject: RE: [SciPy-user] Weave on W2K problems
> 
> 
> > Hey Chris,
> >
> > > I am trying to set up weave/scipy on a very fast machine,
> > unfortunately
> > > running W2K, rather than *NIX, and am having a couple of problems
with
> > > weave.  First, although the scipy binary puts its weave components
in
> > > $PYTHONHOME\Lib\site-packages as I would expect, the full weave
binary
> > > puts its stuff in $PYTHONHOME.
> >
> > This may be because the standalone version was built with 2.1.3 and
I
> > believe it defaulted to putting things in $PYTHONHOME on windows
> > distributions.  This was corrected in Python2.2 (which is used to
build
> > SciPy).
> >
> > > Second, though I have the cygwin gcc
> > > compiler (with g++ also) installed and listed first on my user
path, I
> > get
> > > the following error claiming g++ cannot be found.
> > >
> > >
======================================================================
> > > ERROR: result[1:-1,1:-1] = (b[1:-1,1:-1] + b[2:,1:-1] +
b[:-2,1:-1]
> > >
----------------------------------------------------------------------
> > > Traceback (most recent call last):
> > >   File
> > "T:\Python22\Lib\site-packages\weave\tests\test_blitz_tools.py",
> > > line 150, in check_5point_avg_2d
> > >     self.generic_2d(expr)
> > >   File
> > "T:\Python22\Lib\site-packages\weave\tests\test_blitz_tools.py",
> > > line 124, in generic_2d
> > >     mod_location)
> > >   File
> > "T:\Python22\Lib\site-packages\weave\tests\test_blitz_tools.py",
> > > line 80, in generic_test
> > >     blitz_tools.blitz(expr,arg_dict,{},verbose=0) #,
> > >   File "T:\Python22\Lib\site-packages\weave\blitz_tools.py", line
72,
> > in
> > > blitz
> > >     type_converters = converters.blitz,
> > >   File "T:\Python22\Lib\site-packages\weave\inline_tools.py", line
> > 439, in
> > > compile_function
> > >     verbose=verbose, **kw)
> > >   File "T:\Python22\Lib\site-packages\weave\ext_tools.py", line
332,
> > in
> > > compile
> > >     verbose = verbose, **kw)
> > >   File "T:\Python22\Lib\site-packages\weave\build_tools.py", line
221,
> > in
> > > build_extension
> > >     setup(name = module_name, ext_modules = [ext],verbose=verb)
> > >   File "T:\Python22\lib\distutils\core.py", line 157, in setup
> > >     raise SystemExit, "error: " + str(msg)
> > > CompileError: error: command 'g++' failed: No such file or
directory
> > >
> > >
----------------------------------------------------------------------
> > > Ran 184 tests in 250.797s
> > >
> > > FAILED (errors=1)
> > > <unittest.TextTestRunner instance at 0x00D90AD0>
> > >
> > > I need this stuff to work in order to make my dynamic
optimizations
> > run
> > > faster, so any assistance is most welcome.
> >
> > It looks like all the weave tests passed accept for the one blitz
test.
> > If your not planning on using blitz, then I think you may be OK.
> >
> > I just tried running weave with my cygwin installation with:
> >
> >
----------------------------------------------------------------------
> > Ran 184 tests in 74.055s
> >
> > FAILED (failures=1, errors=22)
> >
> > The blitz() test failed but not like yours.  I actually got
incorrect
> > results.  The 22 errors were all of the MSC++ tests failing because
they
> > couldn't find the C++ file they were asked to compile:
> >
> > sc_abccabed66f253b594f63a36ae4b0cdb0.cpp
> > fatal error C1083: Cannot open source file:
> > '/cygdrive/c/DOCUME~1/eric/LOCALS~1/
> > Temp/@1336.2/sc_abccabed66f253b594f63a36ae4b0cdb0.cpp': No such file
or
> > directory
> > E
> >
> > I'll have to explore these.
> >
> > As for the error of not finding g++, I don't know why it is
happening.
> > If it is in the path and you can execute the following:
> >
> > eric at ERICDESKTOP ~/wrk
> > $ python
> > Python 2.2.1 (#1, Jun 25 2002, 10:55:46)
> > [GCC 2.95.3-5 (cygwin special)] on cygwin
> > Type "help", "copyright", "credits" or "license" for more
information.
> > >>> import os
> > >>> os.system('g++')
> > g++: No input files
> > 256
> >
> > weave shouldn't complain -- especially since it appears to be
finding it
> > in many of the other 184 tests.
> >
> > Hope something here helps,
> > eric
> >
> >
> >
> >
> > >
> > > Thanks,
> > > Chris Fonnesbeck
> > > --
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