Traceback line numbers do not match source line numbers

Hi,

I have an example where lines reported in the traceback on an error do not match source line numbers. The same mismatch exists between gdb line numbers and the source file. The mismatch starts midway through the main file, and it is occurring in at least one linked module file. 

This is the first time I've seen such an example, and I haven't noticed it in any other version of the code using the same module files. I made a clean compile with -c -r8 -heap-arrays -g -debug -traceback -O0 -check all -ftrapuv -fp-stack-check -fpe0 -gen-interfaces -warn interfaces -p. 

I'm using ifort version 15.0.2. I would appreciate any clarification on this matter.

Thanks,

Grgur