Always enable CALL_PTHREAD_SETCONCURRENCY as it is part of POSIX Threads

acconfig.h

@@ -17,12 +17,6 @@
  ***/
 @TOP@
 
-/**
- * define if pthread_setconcurrency() should be called to tell the
- * OS how many threads we might want to run.
- */
-#undef CALL_PTHREAD_SETCONCURRENCY
-
 /** define if flockfile() is available */
 #undef HAVE_FLOCKFILE
 

config.h.in

@@ -17,12 +17,6 @@
  *** it does not get installed.
  ***/
 
-/**
- * define if pthread_setconcurrency() should be called to tell the
- * OS how many threads we might want to run.
- */
-#undef CALL_PTHREAD_SETCONCURRENCY
-
 /** define if flockfile() is available */
 #undef HAVE_FLOCKFILE
 

lib/isc/pthreads/thread.c

@@ -68,11 +68,7 @@ isc_thread_create(isc_threadfunc_t func, isc_threadarg_t arg,
 
 void
 isc_thread_setconcurrency(unsigned int level) {
-#if defined(CALL_PTHREAD_SETCONCURRENCY)
 	(void)pthread_setconcurrency(level);
-#else
-	UNUSED(level);
-#endif
 }
 
 void