[Bug libgomp/42519] bootstrap fails on powerpc64-linux because of libgomp

["jakub at gcc dot gnu dot org" <gcc-bugzilla at gcc dot gnu dot org>]

------- 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