A FORTRAN or C++ compiler is required to compile and link user subroutines for Abaqus. SIMULIA cannot guarantee compatibility of Abaqus with user subroutines written in programming languages other than FORTRAN or C++. For more information, see “User subroutines and utilities,” Section 18.1 of the Abaqus Analysis User's Guide.

User-written postprocessing programs created with the abaqus make utility in Abaqus 6.14 should be compiled using the compiler for the program language and linked using a C++ compiler. Therefore, both a FORTRAN and C++ compiler are required for user-written FORTRAN programs. User-written programs that were compiled and linked with the abaqus make utility in a previous release of Abaqus (before Abaqus 6.14) and processing only the results (.fil) file can still be used with an Abaqus 6.14 results file without any change. In these instances no C++ compiler is required.