git clone https://github.com/MRtrix3/mrtrix3.git
I get the following error
ERROR: error compiling Eigen3 application!
MRtrix3 was unable to compile a test program involving Eigen3.
Set the EIGEN_CFLAGS environment variable to inform 'configure' of
the flags it must provide to the compiler in order to compile
programs that use Eigen3 functionality; this may include the path to
the Eigen3 include files, as well as any required flags.
$ export EIGEN_CFLAGS="-isystem /usr/include/eigen3"
(amend with the actual path to the Eigen3 include files on your system)
OK, that really shouldn’t be required… I’m surprised about this, the only reason I can think of that might explain this would that you’re not using the MinGW 64-bit shell (things won’t work using the 32-bit or MSYS-only shell)…? But then I’d expect things to fall over much earlier if that was the case. Any chance you could post the contents of your configure.log file after a failed ./configure…?
This was for a coworker. I no longer have the machine. They had requested mrtrix3 installed (I’m IT) I am sure I installed the 64-bit msys2.
I did not do any of the “git config” commands because those are for developers.
The set_path I undid as I wanted it in the /etc/bash.bashrc for all users.
mrview ran as she expected. I watched her open a file and look at the brain pictures she had on it. So I left it with her.
Apparently she knows how to use mrview. I do not. I tinker with some cross platform things once in awhile. I use to use cygwin and had tinkered with the linux subsystem. This was the first time I had seen msys2 I found it rather intriguing knowing it had the build tools so easily installable and upgradable with “pacman -Syuu”. I could try the install again on a windows 10 vm I have at home when I get a chance. But I usually use linux machines myself.
OK, that makes sense. Thanks for reporting back! MSYS2 is a great project, but it does have a few rough edges… I wish there was a simpler way - maybe when we start shipping precompiled binaries, which shouldn’t be too long…