LFortran now recognized by CMake

Compilers LFortran
1

I don’t think this has been mentioned elsewhere, see the release notes for CMake 3.31 Lfortran is now supported in CMake! :smiley:

16 Likes
2

Yes. Please report all bugs. This is a new feature and some things might break.

2 Likes
3

This is great to hear, fantastic!

2 Likes
4

How to use it?

I tried lfortran-0.63.0\examples\project1 on Win 10 with cmake 4.3.2.

The readme.md says:

To compile with LFortran:

    FC=lfortran cmake .

Have to changed to:

cmake FC=lfortran .

The error is:

D:\00masterLib\lfortran-0.63.0\examples\project1>cmake FC=lfortran .
-- Selecting Windows SDK version 10.0.26100.0 to target Windows 10.0.19045.
-- The Fortran compiler identification is IntelLLVM 2025.1.0 with MSVC-like command-line
CMake Error at CMakeLists.txt:3 (project):
  The CMAKE_Fortran_COMPILER:

    lfortran

  is not a full path and was not found in the PATH.  Perhaps the extension is
  missing?

I have Intel Fortran on my pc. It found IntelLLVM first, then says lfortran not found. In that folder, I do can start lfortran. My lfortran.exe is at D:\00masterLib\lfortran-0.63.0\inst\bin\lfortran.exe and it is in the PATH.

Thanks for help

Cean

5

I don’t know how to fix it. I don’t have time right now to debug it myself, but if somebody can help with setting up cmake+lfortran on Windows, that would be highly appreciated. It works on linux/macOS.

6

I uploaded my lfortran_0.63.0.exe to my google drive. 20.54MB

https://drive.google.com/file/d/11GRJIIPredV8lLlsPljtQHL0FDObDxM6/view?usp=drivesdk

After unzip, all under an inst folder. Need to set the inst/bin into Windows 10’s PATH.

If lfortran asks some Dlls to run, upzip these into the bin folder. 9.49MB.

https://drive.google.com/file/d/1NWAF8EqfsKtw8uyMTnPC2eQMtaeyPrE8/view?usp=drivesdk

Because lfortran needs VS’s link to generate exe file, you must have VS installed and run lfortran inside the X64 native terminal.

Hope that will help.

7

it might be a CMake for windows thing? Can you use the WSL?

8

Not really want to use wsl.

What file and where cmake look for lFortran? Never tried to figure out how the find package works.

9

you can use cmake --debug-find ../ to see what it is looking for

10

Put full path worked.

cmake -DCMAKE_Fortran_COMPILER="D:/bjbin/lfortran/bin/lfortran.exe" .
3 Likes
11

This generates sln file. When loaded in VS, it is actually build by Intel Fortran on my computer.

I should add the -G “Unix Makefiles”. Then it generates makefile file and then can be build by lfortran.

Disable my Intel Fortran first, then no need for full path of lfortran.