..... the compile the latest version of tdefnode with the compilers below but it did not work.  It give relocation errors and later solve2 error.

GNU Fortran (Ubuntu 13.3.0-6ubuntu2~24.04) 13.3.0
gcc version 13.3.0 (Ubuntu 13.3.0-6ubuntu2~24.04)

Thus, I used the previous version but that did not recognize InSAR data.

So I have tried again to compile it.  Thanks to chatGPT, it works with the minor changes in Makefile below:

#FFLAGS=  -w
FFLAGS=  -w -mcmodel=large

#OBJS = tdefnode.o tdefavail.o solve1.o writegps.o rwparms.o

OBJS = tdefnode.o solve1.o tdefavail.o writegps.o rwparms.o


I thought this may help other users who may have the same problem.

Ziya Cakir