Add in a missing header file

diff --git a/libbb/strdup_substr.c b/libbb/strdup_substr.c
index 4542d5fbe70754c423e79ea012657c62c209c424..85030b11ab2b4d0a31cd2cfe8ac5eff2e96a2870 100644 (file)
--- a/libbb/strdup_substr.c
+++ b/libbb/strdup_substr.c
@@ -22,6 +22,8 @@
 /* Return a substring of STR, starting at index START and ending at END,
  * allocated on the heap.  */
 
+#include "libbb.h"
+
 char *strdup_substr(const char *str, int start, int end)
 {
        int size = end - start + 1;