extensions: include current version in "invalid version" message
It is "not so rare" for the mercurial version to be badly detected at build
time. In such case, version check for extensions gets confused.
To help pinpoint the error, we now include the Mercurial's version number in
the error message.
@echo off
rem Double-click this file to (re)build Mercurial for Windows in place.
rem Useful for testing and development.
cd ..\..
del /Q mercurial\*.pyd
del /Q mercurial\*.pyc
rmdir /Q /S mercurial\locale
python setup.py build_py -c -d . build_ext -i build_mo
pause