1 files changed, 16 insertions, 0 deletions
diff --git a/Build/source/libs/zziplib/zziplib-src/bins/unzzipcat-big.c b/Build/source/libs/zziplib/zziplib-src/bins/unzzipcat-big.c
index 5868c4ec5ae..3774939aacb 100644
--- a/Build/source/libs/zziplib/zziplib-src/bins/unzzipcat-big.c
+++ b/Build/source/libs/zziplib/zziplib-src/bins/unzzipcat-big.c
@@ -62,6 +62,22 @@ static void unzzip_cat_file(FILE* disk, char* name, FILE* out)
     }
 }
 
+#if !defined(ZZIP_HAVE_STRNDUP)
+static char *
+strndup(char *p, size_t maxlen)
+{
+    char *r;
+    if (!p)
+	return NULL;
+    r = malloc(maxlen + 1);
+    if (!r)
+	return NULL;
+    strncpy(r, p, maxlen);
+    r[maxlen] = '\0';
+    return r;
+}
+#endif
+
 static FILE* create_fopen(char* name, char* mode, int subdirs)
 {
    if (subdirs)