FIX Handle large lengths and negative lengths in hiwire_get_length. While investigating this bug:

> ```
> Pyodide has suffered a fatal error. Please report this to the Pyodide maintainers.
> The cause of the fatal error was:
> PythonError: OverflowError: Python int too large to convert to C ssize_t
> ```
> 
> _Originally posted by @amitsaha in https://github.com/pyodide/pyodide/issues/2584#issuecomment-1139530294_

I found a different one. Turns out handling lengths correctly is quite hard.
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	echo.If you don't have Sphinx installed, grab it from
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	exit /b 1
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%SPHINXBUILD% -M %1 %SOURCEDIR% %BUILDDIR% %SPHINXOPTS%
goto end

:help
%SPHINXBUILD% -M help %SOURCEDIR% %BUILDDIR% %SPHINXOPTS%

:end
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@ECHO OFF

pushd %~dp0

REM Command file for Sphinx documentation

if "%SPHINXBUILD%" == "" (
	set SPHINXBUILD=sphinx-build
)
set SOURCEDIR=.
set BUILDDIR=_build

if "%1" == "" goto help

%SPHINXBUILD% >NUL 2>NUL
if errorlevel 9009 (
	echo.
	echo.The 'sphinx-build' command was not found. Make sure you have Sphinx
	echo.installed, then set the SPHINXBUILD environment variable to point
	echo.to the full path of the 'sphinx-build' executable. Alternatively you
	echo.may add the Sphinx directory to PATH.
	echo.
	echo.If you don't have Sphinx installed, grab it from
	echo.http://sphinx-doc.org/
	exit /b 1
)

%SPHINXBUILD% -M %1 %SOURCEDIR% %BUILDDIR% %SPHINXOPTS%
goto end

:help
%SPHINXBUILD% -M help %SOURCEDIR% %BUILDDIR% %SPHINXOPTS%

:end
popd
