The Sage Installation Guide Release 8.7 seems to assume that one installs Sage in Windows using Cygwin, in particular regarding upgrading. However, I installed Sage on Windows 10 from the bin files without installing Cygwin at all. How should I update both Sage and the packages?
I favour an easy way that does not make me uninstall-reinstall.
I forgot about this question, but just as a quick follow-up Jesus and I met last week at the University of Essex and I walked him through building Sage on Windows/Cygwin using the instructions at: https://trac.sagemath.org/wiki/Cygwin...
As we noted at the time, one bit of information currently missing from those instructions is to set:
export FFLAS_FFPACK_CONFIGURE=--disable-openmp
This is just to work around a slight defect in the build system that should get fixed at some point...
Meant mingw
Not cygwin, but mintty. C:\Users{username}\AppData\Local\SageMath 8.7 Sagemath does not run natively in Windows.
Hi, I'm not sure what you intended exactly by this answer but it appears to be misleading. Sage on Windows uses Cygwin. MinTTY is just a terminal emulator that is included in Cygwin, and is also the terminal emulator used by default when running Sage for Windows.
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Last updated: Aug 01 '20
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What do you mean "from the bin file"? If you downloaded the installer from https://github.com/sagemath/sage-wind... then you did install SageMath on Cygwin. Concerning update on Windows, I don't think that there is anything easier for now than uninstall-reinstall.
@vdelecroix I don't think that is correct. I downloaded bin files here http://www.mirrorservice.org/sites/ww... and then simply ran the installation file. I do not have cygwin installed on my computer. If sagemath installs cygwin and runs over it, it does it in a completely transparent way. I cannot even find a cygwin folder in my computer.
I still believe that you have installed cygwin! You should check for the presence of
c:\program files\cygwin.@vdelecroix It is not there. I tell you, I have done a search for cygwin and there is not such directory in the whole disk.
@vdelecroix's first comment is correct. The SageMath installer for Windows includes its own copy of cygwin built-in, including more-or-less exactly the dependencies it needs to run and nothing more. I'm not sure why you're specifically trying to "find Cygwin", but as @vdelecroix there is unfortunately not yet a specific "upgrade" functionality. You can have multiple versions installed side-by-side, and just uninstall the ones you're not using anymore.