+# Check git config
+- git config core.autocrlf
+# Check pip
+- python --version
+- python -m pip --version
+# Install Mako
+- python -m pip install Mako==1.0.7
+# Install pywin32 extensions, needed by SCons
+- python -m pip install pypiwin32
+# Install python wheels, necessary to install SCons via pip
+- python -m pip install wheel
+# Install SCons
+- python -m pip install scons==3.0.1
+- scons --version
+# Install flex/bison
+- set WINFLEXBISON_ARCHIVE=win_flex_bison-%WINFLEXBISON_VERSION%.zip
+- if not exist "%WINFLEXBISON_ARCHIVE%" appveyor DownloadFile "https://github.com/lexxmark/winflexbison/releases/download/v%WINFLEXBISON_VERSION%/%WINFLEXBISON_ARCHIVE%"
+- 7z x -y -owinflexbison\ "%WINFLEXBISON_ARCHIVE%" > nul
+- set Path=%CD%\winflexbison;%Path%
+- win_flex --version
+- win_bison --version
+# Download and extract LLVM
+- if not exist "%LLVM_ARCHIVE%" appveyor DownloadFile "https://people.freedesktop.org/~jrfonseca/llvm/%LLVM_ARCHIVE%"
+- 7z x -y "%LLVM_ARCHIVE%" > nul
+- mkdir llvm\bin
+- set LLVM=%CD%\llvm