------- Comment #1 from jakub at gcc dot gnu dot org 2009-12-28 17:33 ------- So, your pthread.h doesn't contain prototype for pthread_getaffinity_np, yet libpthread.so.0 exports it? Otherwise: # Check for pthread_{,attr_}[sg]etaffinity_np. AC_LINK_IFELSE( [AC_LANG_PROGRAM( [#define _GNU_SOURCE #include <pthread.h>], [cpu_set_t cpuset; pthread_attr_t attr; pthread_getaffinity_np (pthread_self (), sizeof (cpu_set_t), &cpuset); if (CPU_ISSET (0, &cpuset)) CPU_SET (1, &cpuset); else CPU_ZERO (&cpuset); pthread_setaffinity_np (pthread_self (), sizeof (cpu_set_t), &cpuset); pthread_attr_init (&attr); pthread_attr_getaffinity_np (&attr, sizeof (cpu_set_t), &cpuset); pthread_attr_setaffinity_np (&attr, sizeof (cpu_set_t), &cpuset);])], AC_DEFINE(HAVE_PTHREAD_AFFINITY_NP, 1, [ Define if pthread_{,attr_}{g,s}etaffinity_np is supported.])) would fail... pthread_getaffinity_np has been added to both pthread.h and libpthread.so.0 at the same time, 2003-05-09. libgomp/config/linux/proc.c starts with #ifndef _GNU_SOURCE #define _GNU_SOURCE 1 #endif, so the right CPU feature test macro is certainly defined.
-- jakub at gcc dot gnu dot org changed: What |Removed |Added ---------------------------------------------------------------------------- Status|UNCONFIRMED |WAITING http://gcc.gnu.org/bugzilla/show_bug.cgi?id=42519