https://gcc.gnu.org/bugzilla/show_bug.cgi?id=96797
Tobias Burnus <burnus at gcc dot gnu.org> changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |burnus at gcc dot gnu.org --- Comment #1 from Tobias Burnus <burnus at gcc dot gnu.org> --- (In reply to Pavan from comment #0) > We observed that, acc_get_cuda_stream is declared in openacc.h file(C > implementaion uses this) > But acc_get_cuda_stream is not declared in openacc.f90 file(fortran > implementation uses openacc.mod) If you look at section A.2 of either OpenACC 2.6 (supported by GCC) https://www.openacc.org/sites/default/files/inline-files/OpenACC.2.6.final.pdf or in 3.0 (latest version) you only find the C/C++ version: https://www.openacc.org/sites/default/files/inline-images/Specification/OpenACC.3.0.pdf I note that there is an attempt to add a Fortran C-binding interface to it at https://sourceforge.net/projects/fortcuda/ (does not seem to be very active). That would be also my proposal to you as quick solution: Simply create an INTERFACE for them using BIND(C).