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-rw-r--r--lib/http_digest.h3
1 files changed, 3 insertions, 0 deletions
diff --git a/lib/http_digest.h b/lib/http_digest.h
index f4204c40d..622567361 100644
--- a/lib/http_digest.h
+++ b/lib/http_digest.h
@@ -1,3 +1,5 @@
+#ifndef __HTTP_DIGEST_H
+#define __HTTP_DIGEST_H
/***************************************************************************
* _ _ ____ _
* Project ___| | | | _ \| |
@@ -41,3 +43,4 @@ CURLdigest Curl_input_digest(struct connectdata *conn, char *header);
CURLcode Curl_output_digest(struct connectdata *conn,
unsigned char *request,
unsigned char *uripath);
+#endif