From eb164d0b12485292faee35770a4ce2f48976aa1f Mon Sep 17 00:00:00 2001
From: "Dr. Stephen Henson" <steve@openssl.org>
Date: Sun, 30 Jan 2011 01:30:48 +0000
Subject: [PATCH] stop warnings about no previous prototype when compiling
 shared engines

---
 crypto/engine/engine.h |  3 +++
 engines/e_capi.c       |  2 ++
 engines/e_gmp.c        |  2 ++
 engines/e_padlock.c    | 10 ++++++++++
 4 files changed, 17 insertions(+)

diff --git a/crypto/engine/engine.h b/crypto/engine/engine.h
index a42e6b1f98..bfc453fa96 100644
--- a/crypto/engine/engine.h
+++ b/crypto/engine/engine.h
@@ -678,6 +678,7 @@ typedef struct st_dynamic_fns {
  * can be fully instantiated with IMPLEMENT_DYNAMIC_CHECK_FN(). */
 typedef unsigned long (*dynamic_v_check_fn)(unsigned long ossl_version);
 #define IMPLEMENT_DYNAMIC_CHECK_FN() \
+	OPENSSL_EXPORT unsigned long v_check(unsigned long v); \
 	OPENSSL_EXPORT unsigned long v_check(unsigned long v) { \
 		if(v >= OSSL_DYNAMIC_OLDEST) return OSSL_DYNAMIC_VERSION; \
 		return 0; }
@@ -700,6 +701,8 @@ typedef unsigned long (*dynamic_v_check_fn)(unsigned long ossl_version);
 typedef int (*dynamic_bind_engine)(ENGINE *e, const char *id,
 				const dynamic_fns *fns);
 #define IMPLEMENT_DYNAMIC_BIND_FN(fn) \
+	OPENSSL_EXPORT \
+	int bind_engine(ENGINE *e, const char *id, const dynamic_fns *fns); \
 	OPENSSL_EXPORT \
 	int bind_engine(ENGINE *e, const char *id, const dynamic_fns *fns) { \
 		if(ENGINE_get_static_state() == fns->static_state) goto skip_cbs; \
diff --git a/engines/e_capi.c b/engines/e_capi.c
index 1925bad5c1..d4cfdfe4ec 100644
--- a/engines/e_capi.c
+++ b/engines/e_capi.c
@@ -1886,6 +1886,8 @@ static int cert_select_dialog(ENGINE *e, SSL *ssl, STACK_OF(X509) *certs)
 #include <openssl/engine.h>
 #ifndef OPENSSL_NO_DYNAMIC_ENGINE
 OPENSSL_EXPORT
+int bind_engine(ENGINE *e, const char *id, const dynamic_fns *fns);
+OPENSSL_EXPORT
 int bind_engine(ENGINE *e, const char *id, const dynamic_fns *fns) { return 0; }
 IMPLEMENT_DYNAMIC_CHECK_FN()
 #else
diff --git a/engines/e_gmp.c b/engines/e_gmp.c
index c1f5601b62..a3d47151ea 100644
--- a/engines/e_gmp.c
+++ b/engines/e_gmp.c
@@ -471,6 +471,8 @@ static int bind_fn(ENGINE *e, const char *id)
 IMPLEMENT_DYNAMIC_BIND_FN(bind_fn)
 #else
 OPENSSL_EXPORT
+int bind_engine(ENGINE *e, const char *id, const dynamic_fns *fns);
+OPENSSL_EXPORT
 int bind_engine(ENGINE *e, const char *id, const dynamic_fns *fns) { return 0; }
 #endif
 #endif /* !OPENSSL_NO_DYNAMIC_ENGINE */
diff --git a/engines/e_padlock.c b/engines/e_padlock.c
index 240b1f9b57..ce7e086553 100644
--- a/engines/e_padlock.c
+++ b/engines/e_padlock.c
@@ -107,10 +107,14 @@
      ) || \
      (defined(_MSC_VER) && defined(_M_IX86))
 #  define COMPILE_HW_PADLOCK
+#  ifdef OPENSSL_NO_DYNAMIC_ENGINE
 static ENGINE *ENGINE_padlock (void);
+#  endif
 # endif
 #endif
 
+#ifdef OPENSSL_NO_DYNAMIC_ENGINE
+
 void ENGINE_load_padlock (void)
 {
 /* On non-x86 CPUs it just returns. */
@@ -123,6 +127,8 @@ void ENGINE_load_padlock (void)
 #endif
 }
 
+#endif
+
 #ifdef COMPILE_HW_PADLOCK
 /* We do these includes here to avoid header problems on platforms that
    do not have the VIA padlock anyway... */
@@ -196,6 +202,7 @@ padlock_bind_helper(ENGINE *e)
 	return 1;
 }
 
+#ifdef OPENSSL_NO_DYNAMIC_ENGINE
 /* Constructor */
 static ENGINE *
 ENGINE_padlock(void)
@@ -213,6 +220,7 @@ ENGINE_padlock(void)
 
 	return eng;
 }
+#endif
 
 /* Check availability of the engine */
 static int
@@ -1322,6 +1330,8 @@ static RAND_METHOD padlock_rand = {
 #else  /* !COMPILE_HW_PADLOCK */
 #ifndef OPENSSL_NO_DYNAMIC_ENGINE
 OPENSSL_EXPORT
+int bind_engine(ENGINE *e, const char *id, const dynamic_fns *fns);
+OPENSSL_EXPORT
 int bind_engine(ENGINE *e, const char *id, const dynamic_fns *fns) { return 0; }
 IMPLEMENT_DYNAMIC_CHECK_FN()
 #endif
-- 
2.25.1