Re: Undefined reference to 'select()'

[David Cuthbert <dacut@xxxxxxxxx>]

walt wrote:
> Just for fun I added this prototype to the code:
> extern "C" int select(int, fd_set*, fd_set*, fd_set*, struct timeval*);
> Now I get complaints from <sys/select.h> about duplicate definitions
> of select()  :o(

This indicates that sys/select.h should be wrapped in the extern "C". 
Sounds like this got removed from a recent commit.

In general, all headers for C functions should look like:


#ifndef MY_HEADER
#define MY_HEADER
#include <blah.h>
#include ...

#ifdef __cplusplus
extern "C" {
#endif

void my_function();

#ifdef __cplusplus
}
#endif

#endif /* MY_HEADER */