ExternalLibraries/ADIOS2 compilation fails at the thirdparth/ffs stage, which seemed to happen when the size of int was not correctly detected by CMake.

This error happened when I was trying to compile on Delta using cmake/3.31.8 and GNU 13.3.1 compilers, more details on the configuration here

The first error occurred here

[ 15%] Building C object thirdparty/ffs/ffs/CMakeFiles/ffs.dir/ffs/ffs_marshal.c.o
In file included from /projects/bcvu/chcheng3/ETK_2025_05/Cactus/configs/et-test-simfactory/scratch/build/ADIOS2/ADIOS2-2.10.2--

Ticket URL: https://bitbucket.org/einsteintoolkit/tickets/issues/2923/adios2-compilation-fails-due-to-unknown