ddd cannot find the source code

Dear all,

Here is my procedure to use ddd with idb.=20
(1) compile the code using these ifort options: -extend-source 132 -O0 =
-g -save-temps -fpic -Wl,-no_pie
(2) run the DDD with idb: ddd --ladebug --debugger idb  my_program

I got the messages from DDD:
The DDD GUI window showed the following messages:
GNU DDD 3.3.12 (i386-apple-darwin12.1.0), by Dorothea LIntel(R) Debugger =
for applications running on Intel(R) 64, Version 12.1, Build [76.205.11]
------------------=20
object file name: /Users/changks/IBIS/ibis_ted/EDG/ibis=20
Reading symbols from /Users/changks/IBIS/ibis_ted/EDG/ibis...done.
(idb) No file.
(idb)=20
No symbol "MAIN" in current context.
No source file for address MAIN.
(idb)=20
No symbol "MAIN_" in current context.
No source file for address MAIN_.
(idb)=20
No symbol "MAIN__" in current context.
No source file for address MAIN__.
(idb)=20
No symbol "_MAIN" in current context.
No source file for address _MAIN.
(idb)=20
No symbol "__MAIN" in current context.
No source file for address __MAIN.
(idb)=20
No symbol "the_main" in current context.
No source file for address the_main.
(idb)=20
No symbol "main_vxworks" in current context.
No source file for address main_vxworks.
(idb)


I was wondering if my_program did not carry on the path of the source =
code.=20

What is the solution? Thanks for helping me on this.

Cheers,
Michael=