There is a bug in gcc V 3.3.5 which is distributed with
Novell (SuSE) Linux 9.3.
The older gcc V 2.95.3 (coming with SuSE 7.3) doesn't
have the following behaviour and is working correct.
Please generate the following 2 Files:
inc_ext.h:
extern int iVal;
<eof>
and t.c:
#include <stdio.h>
void t(void)
{
#include "inc_ext.h"
static int iVal=0;
printf("Hello World\n");
return;
}
<eof>
Using the older gcc V 2.95.3, you will get a correct error-message:
>
> cc -c t.c -o t.o
t.c: In function `t':
t.c:5: redeclaration of `iVal'
inc_ext.h:1: `iVal' previously declared here
>
>
Using gcc V 3.3.5, no error message will be displayed:
>
> cc -c t.c -o t.o
>
>From our point of view, this behavior is very dangerous during
programming and testing C-Code. If the compiler is additionally
switched into the pedantic mode, you will see only a simple warning.
--
Summary: Missing Errormessage
Product: gcc
Version: 3.3.5
Status: UNCONFIRMED
Severity: critical
Priority: P2
Component: c
AssignedTo: unassigned at gcc dot gnu dot org
ReportedBy: Klaus-Dieter dot Weber at eads dot com
GCC host triplet: i386-Linux
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=24363
