Updated to oneAPI 2025.0 and now libifcore.a is missing

[Dan78]

Hi all,

I have updated Intel oneAPI to 2025.0 and now the linking process of my code hat used to work without any problem is failing because libifcore.a is missing and -lifcore which is passed to the linked will fail. Does anybody know what libraries should I used instead of libifcore.a in 2025.0? The library is for Fortran calls and I need it for some 3rd party libraries.

Regards,

Dan

[morskaya_svinka_1]

Here is a linking advisor that may help you: https://www.intel.com/content/www/us/en/developer/tools/oneapi/onemkl-link-line-advisor.html#gs.hedwhf

[Fengrui · Accepted solution]

Hi Dan,

I was able to find the Fortran runtime on my end,

...:/opt/intel/oneapi/compiler/2025.0$ find . -name libifcore*
./lib/libifcore.a
./lib/libifcore.so.5
./lib/libifcore.so
...

Could you please double check if the installation was complete?

BTW this issue is about Fortran compiler. I would recommend to post future Fortran compiler issues in its forum: https://community.intel.com/t5/Intel-Fortran-Compiler/bd-p/fortran-compiler

Thanks,

Fengrui

[Dan78]

Hi Fegrui,

When Intel oneAPI was updated 2025, then the Fortran compiler was not installed while I had installed it before. I had to install Fortran compiler and now the problem is gone.

Regards,

Danesh