k-nucleotide Intel Fortran program

! The Computer Language Benchmarks Game
! https://salsa.debian.org/benchmarksgame-team/benchmarksgame/

! There does not seem to be a Fortran library
! hash-table that could be used?
    

NOTES:
64-bit Ubuntu quad core
ifx (IFX)
2024.0.2 20231213


 Mon, 04 Mar 2024 20:43:24 GMT

MAKE:
mv knucleotide.ifx knucleotide.f90
~/intel/oneapi/compiler/latest/bin/ifx -O3 -march=ivybridge -qopenmp knucleotide.f90 -o knucleotide.ifx_run
ld: /home/dunham/intel/oneapi/compiler/2024.0/lib/for_main.o: in function `main':
for_main.c:(.text+0x19): undefined reference to `MAIN__'
make: [/home/dunham/all-benchmarksgame/2000-benchmarksgame/nanobench/makefiles/u64q.programs.Makefile:255: knucleotide.ifx_run] Error 1 (ignored)
rm knucleotide.f90

2.39s to complete and log all make actions

COMMAND LINE:
 ./knucleotide.ifx_run 0 < knucleotide-input250000.txt

MAKE ERROR