misc: protect <unistd.h> with #ifdef

Some windows build don't have it.

Thanks to Isuru Fernando for reporting the issue. Refs #327.

Signed-off-by: Brice Goglin <Brice.Goglin@inria.fr>

doc/examples/cpuset+bitmap+cpubind.c

@@ -3,15 +3,17 @@
  * - retrieving the location where the current thread executes
  * - combining/modifying cpusets using the bitmap API
  *
- * Copyright © 2014-2017 Inria.  All rights reserved.
+ * Copyright © 2014-2018 Inria.  All rights reserved.
  * See COPYING in top-level directory.
  */
 
 #include <hwloc.h>
 #include <errno.h>
 #include <stdio.h>
 #include <string.h>
+#ifdef HAVE_UNISTD_H
 #include <unistd.h>
+#endif
 
 int main(void)
 {

doc/examples/nodeset+membind+policy.c

@@ -3,15 +3,17 @@
  * - manipulating nodesets
  * - memory binding and binding policies
  *
- * Copyright © 2014-2017 Inria.  All rights reserved.
+ * Copyright © 2014-2018 Inria.  All rights reserved.
  * See COPYING in top-level directory.
  */
 
 #include <hwloc.h>
 #include <errno.h>
 #include <stdio.h>
 #include <string.h>
+#ifdef HAVE_UNISTD_H
 #include <unistd.h>
+#endif
 #include <assert.h>
 
 int main(void)

doc/examples/sharedcaches.c

@@ -1,15 +1,17 @@
 /* This example program looks for caches shared between this process
  * and another one based on their current binding.
  *
- * Copyright © 2014-2015 Inria.  All rights reserved.
+ * Copyright © 2014-2018 Inria.  All rights reserved.
  * See COPYING in top-level directory.
  */
 
 #include <hwloc.h>
 #include <errno.h>
 #include <stdio.h>
 #include <string.h>
+#ifdef HAVE_UNISTD_H
 #include <unistd.h>
+#endif
 
 int main(int argc, char *argv[])
 {

hwloc/shmem.c

@@ -1,5 +1,5 @@
 /*
- * Copyright © 2017 Inria.  All rights reserved.
+ * Copyright © 2017-2018 Inria.  All rights reserved.
  * See COPYING in top-level directory.
  */
 
@@ -11,7 +11,9 @@
 #ifndef HWLOC_WIN_SYS
 
 #include <sys/mman.h>
+#ifdef HAVE_UNISTD_H
 #include <unistd.h>
+#endif
 #include <assert.h>
 
 #define HWLOC_SHMEM_HEADER_VERSION 1

netloc/support.c

@@ -1,7 +1,7 @@
 /*
  * Copyright © 2013-2014 University of Wisconsin-La Crosse.
  *                         All rights reserved.
- * Copyright © 2016-2017 Inria.  All rights reserved.
+ * Copyright © 2016-2018 Inria.  All rights reserved.
  *
  * $COPYRIGHT$
  *
@@ -17,7 +17,9 @@
 #include <sys/types.h>
 #include <sys/stat.h>
 #include <fcntl.h>
+#ifdef HAVE_UNISTD_H
 #include <unistd.h>
+#endif
 
 char *netloc_line_get_next_token(char **string, char c)
 {

tests/hwloc/shmem.c

@@ -10,7 +10,9 @@
 #include <stdlib.h>
 #include <fcntl.h>
 #include <stdio.h>
+#ifdef HAVE_UNISTD_H
 #include <unistd.h>
+#endif
 #include <sys/mman.h>
 #include <sys/types.h>
 #include <sys/stat.h>

utils/hwloc/hwloc-dump-hwdata-knl.c

@@ -10,7 +10,9 @@
 #include <dirent.h>
 #include <errno.h>
 #include <fcntl.h>
+#ifdef HAVE_UNISTD_H
 #include <unistd.h>
+#endif
 #include <stdlib.h>
 #include <string.h>
 #include <sys/stat.h>

utils/hwloc/hwloc-dump-hwdata.c

@@ -11,7 +11,9 @@
 #include <fcntl.h>
 #include <sys/stat.h>
 #include <sys/types.h>
+#ifdef HAVE_UNISTD_H
 #include <unistd.h>
+#endif
 #include <errno.h>
 #include <assert.h>
 

utils/netloc/infiniband/netloc_ib_extract_dats.c

@@ -1,5 +1,5 @@
 /*
- * Copyright © 2016 Inria.  All rights reserved.
+ * Copyright © 2016-2018 Inria.  All rights reserved.
  *
  * $COPYRIGHT$
  *
@@ -13,7 +13,9 @@
 #include <stdio.h>
 #include <assert.h>
 #include <stdlib.h>
+#ifdef HAVE_UNISTD_H
 #include <unistd.h>
+#endif
 #include <private/netloc.h>
 #include <netloc/uthash.h>
 #include <netloc/utarray.h>