preprocessor/5498: indirect self-reference is not recognized

[alexandervpetrov@hotmail.com]

>Number:         5498
>Category:       preprocessor
>Synopsis:       indirect self-reference is not recognized
>Confidential:   no
>Severity:       serious
>Priority:       medium
>Responsible:    unassigned
>State:          open
>Class:          sw-bug
>Submitter-Id:   net
>Arrival-Date:   Sat Jan 26 09:26:00 PST 2002
>Closed-Date:
>Last-Modified:
>Originator:     Alexander Petrov
>Release:        gcc version 2.95.1 19990816 (release)
>Organization:
>Environment:
SunOS dionysus 5.7 Generic_106541-02 sun4u sparc SUNW,Ultra-5_10
>Description:
Macro A refers to B, macro B refers to A;
single A is expanded twice in the following code:

# define A A_EXP B(
# define B() B_EXP A

A )

result:

A_EXP B_EXP A_EXP B(
>How-To-Repeat:
# define A A_EXP B(
# define B() B_EXP A

A )
>Fix:
explicit specification of object-like macro rescan needed
>Release-Note:
>Audit-Trail:
>Unformatted: