Re: [Discuss-gnuradio] Make fail...config.h:467: error: 'usleep'was not declared in this scope

[Don Ward]

"Dan J" wrote:

> Thanks for the input.  The result of "fgrep -i sleep config.h" is:
>
> fgrep -i sleep config.h
> /* Define to 1 if you have the `nanosleep' function. */
> /* #undef HAVE_NANOSLEEP */
> /* Define to 1 if you have the `sleep' function. */
> /* #undef HAVE_SLEEP */
> /* Define to 1 if you have win32 Sleep */
> #define HAVE_SSLEEP 1
> /* Define to 1 if you have the `usleep' function. */
> #define HAVE_USLEEP 1

This says that configure thinks you have a usleep() function somewhere. 
This is different from my MinGW installation.

> #ifndef HAVE_USLEEP
> int usleep(unsigned long usec); /* SUSv2 */
> #ifndef HAVE_NANOSLEEP
> static inline int nanosleep(const struct timespec *req, struct timespec 
> *rem) { return usleep(req->tv_sec*1000000+req->tv_nsec/1000); }
> #if defined(HAVE_SSLEEP) && !defined(HAVE_SLEEP)
> /* TODO: what about SleepEx? */
> static inline unsigned int sleep (unsigned int nb_sec) { 
> Sleep(nb_sec*1000); return 0; }
>
> 1) I only installed MinGW yesterday and used MinGW-5.1.4.exe.
> 2) Using w32api3.11

Your installation is much newer than mine, but I think I am using the same 
w32api.

You need to find out where configure is finding usleep.  Looking at 
config.log (search for "usleep") may help.  You can also go to 
/mingw/include, /usr/include, /usr/local/include, etc. and try "fgrep usleep 
*.h", "fgrep usleep */*.h", "fgrep usleep */*/*.h", etc. to look for it. 
Then figure out why configure found it but your gnuradio compile didn't.

-- Don W.