variuos: add missing includes

src/basic/limits-util.c

@@ -1,5 +1,7 @@
 /* SPDX-License-Identifier: LGPL-2.1-or-later */
 
+#include <unistd.h>
+
 #include "alloc-util.h"
 #include "cgroup-util.h"
 #include "limits-util.h"

src/basic/procfs-util.c

@@ -1,6 +1,7 @@
 /* SPDX-License-Identifier: LGPL-2.1-or-later */
 
 #include <errno.h>
+#include <unistd.h>
 
 #include "alloc-util.h"
 #include "def.h"

src/creds/creds.c

@@ -1,6 +1,7 @@
 /* SPDX-License-Identifier: LGPL-2.1-or-later */
 
 #include <getopt.h>
+#include <unistd.h>
 
 #include "creds-util.h"
 #include "dirent-util.h"

src/journal-remote/journal-upload.c

@@ -5,6 +5,7 @@
 #include <getopt.h>
 #include <stdio.h>
 #include <sys/stat.h>
+#include <unistd.h>
 
 #include "sd-daemon.h"
 

src/machine/operation.c

@@ -1,6 +1,7 @@
 /* SPDX-License-Identifier: LGPL-2.1-or-later */
 
 #include <sys/wait.h>
+#include <unistd.h>
 
 #include "alloc-util.h"
 #include "fd-util.h"

src/portable/portabled-operation.c

@@ -1,5 +1,7 @@
 /* SPDX-License-Identifier: LGPL-2.1-or-later */
 
+#include <unistd.h>
+
 #include "alloc-util.h"
 #include "fd-util.h"
 #include "portabled-operation.h"

src/shared/calendarspec.c

@@ -7,6 +7,7 @@
 #include <stdio.h>
 #include <stdlib.h>
 #include <sys/mman.h>
+#include <unistd.h>
 
 #include "alloc-util.h"
 #include "calendarspec.h"

src/shared/mkfs-util.c

@@ -1,5 +1,7 @@
 /* SPDX-License-Identifier: LGPL-2.1-or-later */
 
+#include <unistd.h>
+
 #include "id128-util.h"
 #include "mkfs-util.h"
 #include "path-util.h"

src/systemctl/systemctl-start-special.c

@@ -1,5 +1,7 @@
 /* SPDX-License-Identifier: LGPL-2.1-or-later */
 
+#include <unistd.h>
+
 #include "bootspec.h"
 #include "bus-error.h"
 #include "bus-locator.h"

src/test/test-data-fd-util.c

@@ -3,6 +3,7 @@
 #include <sys/types.h>
 #include <sys/stat.h>
 #include <fcntl.h>
+#include <unistd.h>
 
 #include "data-fd-util.h"
 #include "fd-util.h"