c/4080: GCC 3.0.1 doesn't give proper warnings on C++ style declarations

[Jorn Baayen <jorn at nl dot linux dot org>]

>Number:         4080
>Category:       c
>Synopsis:       GCC 3.0.1 doesn't give proper warnings on C++ style declarations
>Confidential:   no
>Severity:       non-critical
>Priority:       medium
>Responsible:    unassigned
>State:          open
>Class:          accepts-illegal
>Submitter-Id:   net
>Arrival-Date:   Wed Aug 22 06:16:02 PDT 2001
>Closed-Date:
>Last-Modified:
>Originator:     
>Release:        3.0.1
>Organization:
>Environment:
System: Linux orthanc 2.4.8-ac1 #3 Sun Aug 12 00:11:33 CDT 2001 i586 unknown
Architecture: i586
cpu: AMD K6-2 400
libc: GNU Libc 2.2.3
host: i586-pc-linux-gnu
build: i586-pc-linux-gnu
target: i586-pc-linux-gnu
configured with: ../gcc-3.0.1/configure --prefix=/usr --with-gxx-include-dir=/usr/include/g++ --enable-shared --enable-languages=c,c++,f77
>Description:
	When compiling a program like this, GCC doesn't warn about the C++
	style declarations in the C code without -Wall, and it does warn,
	but incorrectly, when -Wall is turned on.

>How-To-Repeat:
	Example code:
	int
	main (int argc, char **argv)
	{
		int bla;
		bla = 1;
		int bla2 = 2;

		return 1;
	}

	Output with -Wall:
	bla.c: In function `main':
	bla.c:6 warning: unused variable `bla2'
>Fix:
	None
>Release-Note:
>Audit-Trail:
>Unformatted:
 in C code.