[sysprof: 28/63] libsysprof-capture: Add missing header to define NULL

[Christian Hergert <chergert src gnome org>]

commit c64dfe9cacedec483eac0396e427f154a0114741
Author: Philip Withnall <withnall endlessm com>
Date:   Thu Jul 2 10:22:46 2020 +0100

    libsysprof-capture: Add missing header to define NULL
    
    Signed-off-by: Philip Withnall <withnall endlessm com>
    
    Helps: #40

 src/libsysprof-capture/sysprof-address.c | 1 +
 1 file changed, 1 insertion(+)
---
diff --git a/src/libsysprof-capture/sysprof-address.c b/src/libsysprof-capture/sysprof-address.c
index 0ddb68c..1b12501 100644
--- a/src/libsysprof-capture/sysprof-address.c
+++ b/src/libsysprof-capture/sysprof-address.c
@@ -62,6 +62,7 @@
 # include "sysprof-address-fallback.h"
 #endif
 #include <stdbool.h>
+#include <stddef.h>
 
 #include "sysprof-address.h"