Dear all,

We are trying to compile ETK on ParamGanga at IIT Roorkee. The compilation stops at a very initial step and gives out the error:

checking whether the Fortran compiler (gfortran ) works... yes
checking whether the Fortran compiler (gfortran ) is a cross-compiler... no
checking whether the Fortran compiler (gfortran ) supports TYPE(*) for CCTK_PointerTo... yes
checking how to run the C preprocessor... cpp
checking for ANSI C header files... no
checking for C99 features... yes
checking for M_PI... no
configure: error: M_PI not defined. Try adding -D_XOPEN_SOURCE to CPPFLAGS.

We tried adding -D_XOPEN_SOURCE to CPPFLAGS, but it does not help. This error is consistent if we set up using Intel Compiler (2020 or 2019), or gcc (11 or 10). I have attached the outfile, error file, machine script, and option lists for both cases (Intel and gcc) for any reference.

Secondly, we are not allowed to compile ETK on login nodes. So we are queuing a job script, which upon execution, enters the Cactus directory, does "setup-silent", and then executes the build command. Is this the right way to compile ETK using the batch script? Or should we do something different? I have attached the shell script (compile.sh) used for sbatch queue for reference.

Thanks in advance for the help.

Regards

Shamim Haque

Senior Research Fellow (SRF)

Department of Physics

IISER Bhopal