Aotus relies on the ISO-C-Binding of the Fortran 2003 standard, and therefore requires relatively new compiler versions. However a wide range of different compilers are known to compile the library.
Cray: Known to work with version 7.4.0 and newer.
GNU gfortran: Known to work with version 4.4.5 and newer.
IBM: Known to work with version 11.1.
Intel: Known to work with version 12.0 and newer.
NAG: Known to work with version 5.2. and newer.
NEC: Known to work with the NEC Fortran 2003 Compiler Rev.003 2014/07/31.
PGI: Known to work with pgfortan version 15.7.