Summary
=======
.) cflow does not see calls to function inside a function
   1) returning a pointer to a struct
   2) with arguments declared using old style (Kernighan & Ritchie)
      instead of "modern" ANSI C style

Details
=======

System Setup
-----------
On GNU/Linux ubuntu 9.10 karmic
kernel: Linux 2.6.31-22-generic)
architecture: i386
$ uname  -a
Linux henri 2.6.31-22-generic #68-Ubuntu SMP Tue Oct 26 16:38:35 UTC 2010 i686 GNU/Linux

cflow version
-------------
ftp://download.gnu.org.ua/pub/release/cflow/cflow-1.3.tar.gz


-----%< cflow-OK.c -------------------------------------------
struct s * foo (int arg)
{
  bar();
}
----->% cflow-OK.c -------------------------------------------


-----%< cflow-BUG.c -------------------------------------------
struct s * foo (arg)
     int arg;
{
  bar();
}
----->% cflow-BUG.c -------------------------------------------

Results
-------
$ cflow --xref cflow-OK.c
bar   cflow-OK.c:3
foo * cflow-OK.c:1 struct s foo (int arg)

$ cflow --xref cflow-BUG.c
foo * cflow-BUG.c:1 struct s foo (arg)

The call to bar() DOES NOT SHOW UP

Remarks
-------
you need BOTH
1) old style arguments declaration
2) function returning struct of pointer to a struct

to trigger the bug.  otherwhise old style arguments declarations or
functions returning struct or pointer to struct are handled correctly
Even inserting a declaration for bar... and making sure that
"gcc -Wall -ansi -pedantic" accepts the test case  does not help:


-----%< cflow-STRICT.c -------------------------------------------
extern struct s * bar(void);
struct s * foo (arg)
     int arg;
{
  return (bar());
}
----->% cflow-STRICT.c -------------------------------------------