Win10 compiling error with MS-MPI +Msys2 latest-version +git : error occuring for lacking libarpack.a file

[Hsiang-Yj]

I follow the installation guide website:https://doc.freefem.org/introduction/installation.html#compilation-on-windows, to compile the FreeFem, however something wrong happened. The screenshot of Msys2_MinGW_64 is like the following picture:

Pls tell me how to fix it! Thanks a lot!

[prj-]

You should compile PETSc first, see https://github.com/FreeFem/FreeFem-sources/blob/develop/README.md#freefem. Make sure that you have these pacman packages installed autoconf automake-wrapper bison bsdcpio make git mingw-w64-x86_64-toolchain patch python flex pkg-config pkgfile tar unzip mingw-w64-x86_64-cmake mingw-w64-x86_64-msmpi mingw-w64-x86_64-openblas mingw-w64-x86_64-jq.

[Hsiang-Yj]

Thank you, I try to compile PETS first, but it feedback: no mpicc in （......）as following:

[Hsiang-Yj]

My 3rdparty isall download from git:

My config.log in FreeFem-sources is below: config.log

[prj-]

Please, make sure that:

1. you are on a fresh copy of FreeFEM develop branch;
2. the package mingw-w64-x86_64-msmpi is installed;
3. you are using a proper --prefix, see again README.md referenced earlier.

You should not use SUDO to install PETSc (which will install ARPACK).

[Hsiang-Yj]

Problem still exists! When compiling PETSc alone.

[prj-]

You are still not using a fresh FreeFEM develop branch, see https://github.com/FreeFem/FreeFem-sources/blob/b34f967acc05df3d91f4acf102c750518bb2d7ec/3rdparty/getall#L176 And it looks like you installed the wrong Python, so you may want to type export PYTHON=/usr/bin/python in your terminal before make petsc-slepc.

[Hsiang-Yj]

Thank u, I will use a fresh FreeFEM develop branch to have another try, and my python version is 3.10.11, I didn't do some special operation on Python, which already existed in my computer. Did the python suit for this project?

[prj-]

No, you must use /usr/bin/python, cf. the export command from above. Just run it before make petsc-slepc.

[Hsiang-Yj]

Okay, appreciate for your suggestion. I will try again!

[Hsiang-Yj]

Can you provide me some more suggestion! Thank U very much!

[prj-]

You are still not using a fresh develop branch...

[prj-]

And you still did not install mingw-w64-x86_64-msmpi. Why ask for advices, if you don't follow the instructions? Once the package is installed, you'll have

$ which mpicc
/mingw64/bin/mpicc

You currently have which: no mpicc.

[prj-]

Can I close the issue or do you still have issues?

[Hsiang-Yj]

Of course. Thank you for your time!

from：iPhone

------------------ Original ------------------ From: Pierre Jolivet @.> Date: Sat,May 13,2023 10:00 PM To: FreeFem/FreeFem-sources @.> Cc: Hsiang-Yj @.>, Author @.> Subject: Re: [FreeFem/FreeFem-sources] Win10 compiling error with MS-MPI+Msys2 latest-version +git : error occuring for lacking libarpack.a file (Issue #267)

Can I close the issue or do you still have issues?

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