Hi all, I'am currently trying to install relax on my computer and I have some difficulties for compiling the C modules. I've tried to manually compile the modules but I failed... Notice that I use Enthough Python Distribution. Here is the output of the --info command: [mlescanne@localhost ~/relax_disp]$ relax --info relax repository checkout r20477 svn://svn.gna.org/svn/relax/branches/relax_disp Molecular dynamics by NMR data analysis Copyright (C) 2001-2006 Edward d'Auvergne Copyright (C) 2006-2013 the relax development team This is free software which you are welcome to modify and redistribute under the conditions of the GNU General Public License (GPL). This program, including all modules, is licensed under the GPL and comes with absolutely no warranty. For details type 'GPL' within the relax prompt. Assistance in using the relax prompt and scripting interface can be accessed by typing 'help' within the prompt. ImportError: relaxation curve fitting is unavailable, the corresponding C modules have not been compiled. Processor fabric: Uni-processor. Hardware information: Machine: i686 Processor: i686 Endianness: little Total RAM size: 1967 Mb Total swap size: 4102 Mb Operating system information: System: Linux Release: 2.6.30.10-105.2.23.fc11.i686.PAE Version: #1 SMP Thu Feb 11 07:05:37 UTC 2010 GNU/Linux version: Fedora 11 Leonidas Distribution: fedora 11 Leonidas Full platform string: Linux-2.6.30.10-105.2.23.fc11.i686.PAE-i686-with-fedora-11-Leonidas Python information: Architecture: 32bit ELF Python version: 2.7.3 Python branch: Python build: default, Apr 11 2012 18:02:54 Python compiler: GCC 4.1.2 20080704 (Red Hat 4.1.2-44) Libc version: glibc 2.0 Python implementation: CPython Python revision: Python executable: /data/people/mlescanne/epd_free-7.3-2-rh5-x86/bin/python Python flags: sys.flags(debug=0, py3k_warning=0, division_warning=0, division_new=0, inspect=0, interactive=0, optimize=0, dont_write_bytecode=0, no_user_site=0, no_site=0, ignore_environment=0, tabcheck=0, verbose=0, unicode=0, bytes_warning=0, hash_randomization=0) Python float info: sys.float_info(max=1.7976931348623157e+308, max_exp=1024, max_10_exp=308, min=2.2250738585072014e-308, min_exp=-1021, min_10_exp=-307, dig=15, mant_dig=53, epsilon=2.220446049250313e-16, radix=2, rounds=1) Python module path: ['/data/people/mlescanne/fct_optimisation/relax/relax_disp', '/data/soft/ccpnmr_2.1.3_1/ccpnmr2.1/python', '/data/people/mlescanne/epd_free-7.3-2-rh5-x86/lib/python27.zip', '/data/people/mlescanne/epd_free-7.3-2-rh5-x86/lib/python2.7', '/data/people/mlescanne/epd_free-7.3-2-rh5-x86/lib/python2.7/plat-linux2', '/data/people/mlescanne/epd_free-7.3-2-rh5-x86/lib/python2.7/lib-tk', '/data/people/mlescanne/epd_free-7.3-2-rh5-x86/lib/python2.7/lib-old', '/data/people/mlescanne/epd_free-7.3-2-rh5-x86/lib/python2.7/lib-dynload', '/data/people/mlescanne/epd_free-7.3-2-rh5-x86/lib/python2.7/site-packages', '/data/people/mlescanne/epd_free-7.3-2-rh5-x86/lib/python2.7/site-packages/PIL'] Python packages and modules (most are optional): Name Installed Version Path minfx True 1.0.5 /data/people/mlescanne/epd_free-7.3-2-rh5-x86/lib/python2.7/site-packages/minfx bmrblib True 1.0.3 /data/people/mlescanne/epd_free-7.3-2-rh5-x86/lib/python2.7/site-packages/bmrblib numpy True 1.6.1 /data/people/mlescanne/epd_free-7.3-2-rh5-x86/lib/python2.7/site-packages/numpy scipy True 0.10.1 /data/people/mlescanne/epd_free-7.3-2-rh5-x86/lib/python2.7/site-packages/scipy wxPython True 2.8.10.1 (gtk2-unicode) /data/people/mlescanne/epd_free-7.3-2-rh5-x86/lib/python2.7/site-packages/wx mpi4py False epydoc False optparse True 1.5.3 /data/people/mlescanne/epd_free-7.3-2-rh5-x86/lib/python2.7/optparse.pyc readline True /data/people/mlescanne/epd_free-7.3-2-rh5-x86/lib/python2.7/lib-dynload/readline.so profile True /data/people/mlescanne/epd_free-7.3-2-rh5-x86/lib/python2.7/profile.pyc bz2 True /data/people/mlescanne/epd_free-7.3-2-rh5-x86/lib/python2.7/lib-dynload/bz2.so gzip True /data/people/mlescanne/epd_free-7.3-2-rh5-x86/lib/python2.7/gzip.pyc io True /data/people/mlescanne/epd_free-7.3-2-rh5-x86/lib/python2.7/io.pyc xml True 0.8.4 (internal) /data/people/mlescanne/epd_free-7.3-2-rh5-x86/lib/python2.7/xml/__init__.pyc xml.dom.minidom True /data/people/mlescanne/epd_free-7.3-2-rh5-x86/lib/python2.7/xml/dom/minidom.pyc relax information: Version: repository checkout r20477 svn://svn.gna.org/svn/relax/branches/relax_disp Processor fabric: Uni-processor. relax C modules: Module Compiled File type Path target_functions.relax_fit False Here is the output when I type scons: [mlescanne@localhost ~/relax_disp]$ scons scons: Reading SConscript files ... The dependency 'minfx' has not been installed (see https://gna.org/projects/minfx/). I you dealt with this kind of problem I would be interested in the way you overcame it. Regards, Mathilde