Hi to all, I'm trying to configure, build and install graph-tool in a windows environment using CygWin. I already successfully installed all the dependencies reported in the graph-tool website. The problem arises while running "configure" script: when it tries to find a python version it comes to me the following error: checking for python... (cached) /cygdrive/c/Program Files/Python27/python checking for a version of Python >= '2.1.0'... configure: line 16603: /cygdrive/ c/Program: No such file or directory no configure: error: in `/cygdrive/c/Program Files/graph-tool-2.2.11': configure: error: This version of the AC_PYTHON_DEVEL macro doesn't work properly with versions of Python before 2.1.0. You may need to re-run configure, setting the variables PYTHON_CPPFLAGS, PYTHON_LDFLAGS, PYTHON_SITE_PKG, PYTHON_EXTRA_LIBS and PYTHON_EXTRA_LDFLAGS by hand. Moreover, to disable this check, set PYTHON_NOVERSIONCHECK to something else than an empty string. See `config.log' for more details I guess the problem is with my python root directory, that is "C:\Program Files\Python27" and contains a blank space, so when the script receives from the cygwin environment the path "/cygdrive/c/Program Files/Python27" it searches for "/cygdrive/c/Program" that doesn't exist. I don't know if my supposition is correct... in any case, can anybody please help me to deal with this problem? Thanks in advance, DD -- View this message in context: http://main-discussion-list-for-the-graph-tool-project.982480.n3.nabble.com/... Sent from the Main discussion list for the graph-tool project mailing list archive at Nabble.com.