preprocessor problem

[Magnus Damm]

Good day.

My preprocessor behaves strange when I use macros with multiple arguments.

System:
Linux 2.2.12 kernel with debian 2.1.
Running on a Pentium 2 system with lots of disk and enough ram. 

Version:
"gcc -v" says:
gcc version 2.7.2.3

Errors or Warnings:
none.

Files attached:
bug.c - source to generate the case.
bug_out.c - file generated by "gcc -c bug.c -E > bug_out.c"

Problem:

If you look at the "hello world" line in bug_out.c you will see that 
the ->bar part from the foobar->bar argument is missing...

The line with "bye world" has no problems.

This might be a feature that I am not aware of.

Any clue?

TIA /

Magnus Damm
bug.c
bug_out.c

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