Calling function mktime from fortran.

[Michael_Menge]

We are porting a fortran program from OpenVMS to Suse Linux SLES10 an have installed for testing the Intel Compiler Suite Professional Edition for Linux*. The application uses function qsort and mktime (VMS: decc$qsort and decc$mktime from VMS-CRTL-Library).
Function qsort is part of the intel fortran compatibility library, but the reference to function mktime isn't resolved, I get 'undefined reference to mktime_' when linking.
In which library can I find function mktime? Do I have to install the intel c/c++ compiler too for mktime is probably part of a library of the c compiler? What is to do to get the reference resolved?

[Stephen_D_Intel]

Hi Michael,

The C-library mktime is defined in libc. To get rid of the trailing underscore, you can try something like this
in your Fortran program:

!dir$ attributes alias: 'mktime' :: mktime

Regards,
Steve D.
Intel Developer Support

[TimP]

gcc counts as an ifort interoperable compiler for USE iso_c_binding, so you ought to be able to call mktime the portable way.