Change some #if to #ifdef

src/plugins/task/affinity/affinity.h

@@ -32,7 +32,7 @@
  *  with SLURM; if not, write to the Free Software Foundation, Inc.,
  *  51 Franklin Street, Fifth Floor, Boston, MA 02110-1301  USA.
 \*****************************************************************************/
-#if HAVE_CONFIG_H
+#ifdef HAVE_CONFIG_H
 #  include "config.h"
 #endif
 
@@ -40,11 +40,11 @@
 #  include <numa.h>
 #endif
 
-#if HAVE_SYS_TYPES_H
+#ifdef HAVE_SYS_TYPES_H
 #  include <sys/types.h>
 #endif
 
-#if HAVE_SYS_PRCTL_H
+#ifdef HAVE_SYS_PRCTL_H
 #  include <sys/prctl.h>
 #endif