[Bug c/31389] New: [4.3 Regression] undefined reference with inline function and -std=gnu99
tbm at cyrius dot com
gcc-bugzilla@gcc.gnu.org
Thu Mar 29 10:51:00 GMT 2007
Is the following buggy core or a bug in 4.3? I don't see why it should fail.
The problem is that when I compile an inline function with -std=gnu99, it will
not be found during linking.
Example:
gcc -c t.c
gcc -c -std=gnu99 timer.c
gcc -o t t.o timer.o
This results in:
t.c:(.text+0x1c): undefined reference to `timerdiv'
but it works when I either remove the "inline" attribute to timerdiv or
the -std=gnu99.
Code:
timer.c:
#include <sys/time.h>
inline void
timerdiv(struct timeval *tvp, float div)
{
double interval;
if (div == 0 || div == 1)
return;
interval = ((double)tvp->tv_sec * 1000000 + tvp->tv_usec) / (double)div;
tvp->tv_sec = interval / (int)1000000;
tvp->tv_usec = interval - (tvp->tv_sec * 1000000);
}
t.c:
#include <sys/time.h>
struct tcpr_speed_s {
float speed;
};
typedef struct tcpr_speed_s tcpr_speed_t;
struct tcpreplay_opt_s {
tcpr_speed_t speed;
};
typedef struct tcpreplay_opt_s tcpreplay_opt_t;
struct timeval nap;
tcpreplay_opt_t options;
extern void timerdiv(struct timeval *tvp, float div);
int main() {
timerdiv(&nap, options.speed.speed);
return 0;
}
--
Summary: [4.3 Regression] undefined reference with inline
function and -std=gnu99
Product: gcc
Version: 4.3.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: c
AssignedTo: unassigned at gcc dot gnu dot org
ReportedBy: tbm at cyrius dot com
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=31389
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