Make all required includes explicit

Information as seen by IWYU 0.12 + clang 9 on Linux

1 files changed, 6 insertions, 4 deletions

diff --git a/ListItem.c b/ListItem.c
index c4479d73..866f20ff 100644
--- a/ListItem.c
+++ b/ListItem.c
@@ -5,16 +5,18 @@ Released under the GNU GPLv2, see the COPYING file
 in the source distribution for its full text.
 */
 
+#include "config.h" // IWYU pragma: keep
+
 #include "ListItem.h"
 
+#include <assert.h>
+#include <stdlib.h>
+#include <string.h>
+
 #include "CRT.h"
 #include "RichString.h"
 #include "XUtils.h"
 
-#include <string.h>
-#include <assert.h>
-#include <stdlib.h>
-
 
 static void ListItem_delete(Object* cast) {
    ListItem* this = (ListItem*)cast;