Hi, I have a build script (python) that builds libxml2 and libxslt for me on windows. I wanted to add lxml to this however I can't find out how to add the paths of these self-built libs to the lxml build. So I have: sources\libxml2-2.7.8 sources\libxslt-1.1.26 and built\libxml2-2.7.8 built\libxslt-1.1.26 and from sources\lxml-lxml-3.6.0 I would like to build, using the already-built libxml and libxslt (on windows..) however using 'python setup.py install' gives the following output: ... Building without Cython. ERROR: 'xslt-config' is not recognized as an internal or external command, operable program or batch file. ... ... xmlXPathInitdjji7e.c(1) : fatal error C1083: Cannot open include file: 'libxml/xpath.h': No such file or directory ************************************************************************ ********* Could not find function xmlCheckVersion in library libxml2. Is libxml2 installed? ************************************************************************ ********* Can this library be built with self-built versions of libxml and libxslt or are those dev packages a hard requirement? Thanks in advance