Add support for Intel compilers

[mkappas]

Instructions:

1. Create a python venv, activate it and pip install fypp.
2. Create a pkgconfigs directory and add the following two files:

lapack.pc:

prefix=/rds/bear-apps/2024a/EL8-ice/software/imkl/2024.2.0/mkl/2024.2
exec_prefix=${prefix}
libdir=${prefix}/lib
includedir=${prefix}/include

Name: LAPACK
Description: Intel(R) oneAPI Math Kernel Library acting as LAPACK
Version: 2024.2

Libs: -L${libdir} -lmkl_rt -lpthread -lm -ldl
Cflags: -I"${includedir}"

hdf5_fortran.pc:

Name: HDF5
Description: Hierarchical Data Format 5 (HDF5)
Version: 1.14.5
Requires:
Cflags: -I/rds/bear-apps/2024a/EL8-ice/software/HDF5/1.14.5-iimpi-2024a/include/
Libs: -L/rds/bear-apps/2024a/EL8-ice/software/HDF5/1.14.5-iimpi-2024a/lib -lhdf5_fortran

3. Load the necessary module

module reset
module load bear-apps/2024a
module load intel/2024a

4. Set the env variables

export WITH_ADIPLS=no
export WITH_CRLIBM=no
export WITH_GYRE=no
export WITH_PGSTAR=no
export COMPILER=ifx

export PKG_CONFIG_PATH=path_to_the_pkgconfigs_dir:$PKG_CONFIG_PATH

5. Run make star. If the process fails due to permission issues with fypp_deps, execute chmod 750 build/forum/src/build/fypp_deps and restart make star. If it later fails because of missing module files, run cp build/forum/src/build/*.mod build/forum/include/ and run make star one final time.