1 files changed, 7 insertions, 3 deletions
diff --git a/src/pj_open_lib.c b/src/pj_open_lib.c
index 8ecbbd79..6b908360 100644
--- a/src/pj_open_lib.c
+++ b/src/pj_open_lib.c
@@ -29,11 +29,15 @@
  *****************************************************************************/
 
 #define PJ_LIB__
-#include "proj_internal.h"
-#include "projects.h"
+
+#include <errno.h>
+#include <stddef.h>
 #include <stdio.h>
+#include <stdlib.h>
 #include <string.h>
-#include <errno.h>
+
+#include "proj_internal.h"
+#include "projects.h"
 
 static const char *(*pj_finder)(const char *) = NULL;
 static int path_count = 0;