Small fix for including unistd.h header file.

This commit was SVN r18758.

ompi/class/ompi_circular_buffer_fifo.h

@@ -18,7 +18,9 @@
 
 #ifndef _OMPI_CIRCULAR_BUFFER_FIFO
 #define _OMPI_CIRCULAR_BUFFER_FIFO
+#ifdef HAVE_UNISTD_H
 #include <unistd.h> /* for getpagesize() */
+#endif
 
 #include "ompi/constants.h"
 #include "opal/sys/cache.h"

ompi/mca/mpool/rdma/mpool_rdma_component.c

@@ -27,7 +27,9 @@
 #include "mpool_rdma.h"
 #include "orte/util/proc_info.h"
 #include "ompi/runtime/params.h"
+#ifdef HAVE_UNISTD_H
 #include <unistd.h>
+#endif
 #ifdef HAVE_MALLOC_H
 #include <malloc.h>
 #endif

ompi/mca/mpool/sm/mpool_sm_module.c

@@ -21,7 +21,9 @@
 #include "orte/util/show_help.h"
 #include "ompi/mca/mpool/sm/mpool_sm.h"
 #include "ompi/mca/common/sm/common_sm_mmap.h"
+#ifdef HAVE_UNISTD_H
 #include <unistd.h>
+#endif
 #include "opal/include/opal/align.h"
 #include "opal/mca/maffinity/maffinity.h"
 #include "opal/mca/maffinity/maffinity_types.h"

opal/mca/base/mca_base_component_find.c

@@ -24,7 +24,9 @@
 #include <string.h>
 #include <ctype.h>
 #include <stdlib.h>
+#ifdef HAVE_UNISTD_H
 #include <unistd.h>
+#endif
 #ifdef HAVE_SYS_PARAM_H
 #include <sys/param.h>
 #endif