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On another Ubuntu machine, I managed to get until the eSASS ./configure script, but it kept throwing the error "healpix not found", even though I gave a valid path (--with-healpix=/full/path/to/external/Healpix_3.50/). Looking into config.log, there are compilation errors towards the end (...

I was following the install instructions at https://erosita.mpe.mpg.de/dr1/eSASS4DR1/eSASS4DR1_installation/ for the eRO-SDAS workshop. Here are my notes on Ubuntu 24.04.1: 1) fftw3 is not a ubuntu package. "sudo apt-get install libfftw3-dev" is enough and works 2) for cfitsio, one needs t...