<yoda@cef.org.tw> writes:
> I think the key point is the define of accept() in 2.2.
> accept() define in glibc 2.2
> extern int accept (int __fd, __SOCKADDR_ARG __addr,
> socklen_t *__restrict __addr_len)
> __THROW;
> Definition of __SOCKADDR_ARG in glibc 2.2
> #if defined __cplusplus || !__GNUC_PREREQ (2, 7)
> # define __SOCKADDR_ARG struct sockaddr *__restrict
> # define __CONST_SOCKADDR_ARG __const struct sockaddr *
> #else
> Definition of __restrict in glibc 2.2
> /* __restrict is known in EGCS 1.2 and above. */
> #if !__GNUC_PREREQ (2,92)
> # define __restrict /* Ignore */
> #endif
After staring at this a little, I wonder whether the __restrict
qualifiers might be the problem. However, my compiler (gcc 2.95.3)
does not complain about this test program:
struct sockaddr { int x; };
typedef int socklen_t;
extern int accept (int __fd, struct sockaddr *__restrict __addr,
socklen_t *__restrict __addr_len);
extern int accept (int __fd, struct sockaddr * __addr,
socklen_t * __addr_len);
int main() { return 0; }
so at least in this version of gcc, it should not be a problem to
probe for accept's argument types without worrying about __restrict.
What compiler version are you using? Does it reject the above test
program?
regards, tom lane