>From 98e9105fa23067d396f25beb8406cfe407de469d Mon Sep 17 00:00:00 2001
From: Peter Simons <address@hidden>
Date: Tue, 21 Jul 2009 15:22:24 +0200
Subject: [PATCH 1/2] Wrap declarations in extern "C" scope when headers are included from C++.

---
 lib/md2.h    |    8 ++++++++
 lib/md4.h    |    8 ++++++++
 lib/md5.h    |    8 ++++++++
 lib/sha1.h   |    8 ++++++++
 lib/sha256.h |    8 ++++++++
 lib/sha512.h |    8 ++++++++
 6 files changed, 48 insertions(+), 0 deletions(-)

diff --git a/lib/md2.h b/lib/md2.h
index 401604e..3535e29 100644
--- a/lib/md2.h
+++ b/lib/md2.h
@@ -22,6 +22,10 @@
 # include <stdio.h>
 # include <stddef.h>
 
+# ifdef __cplusplus
+extern "C" {
+# endif
+
 # define MD2_DIGEST_SIZE 16
 
 /* Structure to save state of computation between the single steps.  */
@@ -73,4 +77,8 @@ extern int md2_stream (FILE *stream, void *resblock);
    digest.  */
 extern void *md2_buffer (const char *buffer, size_t len, void *resblock);
 
+# ifdef __cplusplus
+}
+# endif
+
 #endif
diff --git a/lib/md4.h b/lib/md4.h
index 937794c..6b49da5 100644
--- a/lib/md4.h
+++ b/lib/md4.h
@@ -22,6 +22,10 @@
 # include <stdio.h>
 # include <stdint.h>
 
+# ifdef __cplusplus
+extern "C" {
+# endif
+
 # define MD4_DIGEST_SIZE 16
 
 /* Structure to save state of computation between the single steps.  */
@@ -79,4 +83,8 @@ extern int md4_stream (FILE * stream, void *resblock);
    digest.  */
 extern void *md4_buffer (const char *buffer, size_t len, void *resblock);
 
+# ifdef __cplusplus
+}
+# endif
+
 #endif
diff --git a/lib/md5.h b/lib/md5.h
index 3ae657b..0769edb 100644
--- a/lib/md5.h
+++ b/lib/md5.h
@@ -54,6 +54,10 @@
 # define __md5_stream md5_stream
 #endif
 
+# ifdef __cplusplus
+extern "C" {
+# endif
+
 /* Structure to save state of computation between the single steps.  */
 struct md5_ctx
 {
@@ -115,4 +119,8 @@ extern int __md5_stream (FILE *stream, void *resblock) __THROW;
 extern void *__md5_buffer (const char *buffer, size_t len,
 			   void *resblock) __THROW;
 
+# ifdef __cplusplus
+}
+# endif
+
 #endif /* md5.h */
diff --git a/lib/sha1.h b/lib/sha1.h
index 4ffda7a..93babd2 100644
--- a/lib/sha1.h
+++ b/lib/sha1.h
@@ -23,6 +23,10 @@
 # include <stdio.h>
 # include <stdint.h>
 
+# ifdef __cplusplus
+extern "C" {
+# endif
+
 #define SHA1_DIGEST_SIZE 20
 
 /* Structure to save state of computation between the single steps.  */
@@ -81,4 +85,8 @@ extern int sha1_stream (FILE *stream, void *resblock);
    digest.  */
 extern void *sha1_buffer (const char *buffer, size_t len, void *resblock);
 
+# ifdef __cplusplus
+}
+# endif
+
 #endif
diff --git a/lib/sha256.h b/lib/sha256.h
index a63b201..3dfcb26 100644
--- a/lib/sha256.h
+++ b/lib/sha256.h
@@ -21,6 +21,10 @@
 # include <stdio.h>
 # include <stdint.h>
 
+# ifdef __cplusplus
+extern "C" {
+# endif
+
 /* Structure to save state of computation between the single steps.  */
 struct sha256_ctx
 {
@@ -80,4 +84,8 @@ extern int sha224_stream (FILE *stream, void *resblock);
 extern void *sha256_buffer (const char *buffer, size_t len, void *resblock);
 extern void *sha224_buffer (const char *buffer, size_t len, void *resblock);
 
+# ifdef __cplusplus
+}
+# endif
+
 #endif
diff --git a/lib/sha512.h b/lib/sha512.h
index ed12d54..20bb09b 100644
--- a/lib/sha512.h
+++ b/lib/sha512.h
@@ -22,6 +22,10 @@
 
 # include "u64.h"
 
+# ifdef __cplusplus
+extern "C" {
+# endif
+
 /* Structure to save state of computation between the single steps.  */
 struct sha512_ctx
 {
@@ -84,4 +88,8 @@ extern int sha384_stream (FILE *stream, void *resblock);
 extern void *sha512_buffer (const char *buffer, size_t len, void *resblock);
 extern void *sha384_buffer (const char *buffer, size_t len, void *resblock);
 
+# ifdef __cplusplus
+}
+# endif
+
 #endif
-- 
1.6.3.3