Add the possibility to build without the ENGINE framework.

PR: 287

crypto/dsa/dsa.h

@@ -135,8 +135,10 @@ struct dsa_st
 	int references;
 	CRYPTO_EX_DATA ex_data;
 	const DSA_METHOD *meth;
+#ifndef OPENSSL_NO_ENGINE
 	/* functional reference if 'meth' is ENGINE-provided */
 	ENGINE *engine;
+#endif
 	};
 
 #define DSAparams_dup(x) (DSA *)ASN1_dup((int (*)())i2d_DSAparams, \

crypto/dsa/dsa_lib.c

@@ -63,7 +63,9 @@
 #include <openssl/bn.h>
 #include <openssl/dsa.h>
 #include <openssl/asn1.h>
+#ifndef OPENSSL_NO_ENGINE
 #include <openssl/engine.h>
+#endif
 
 const char *DSA_version="DSA" OPENSSL_VERSION_PTEXT;
 
@@ -93,11 +95,13 @@ int DSA_set_method(DSA *dsa, const DSA_METHOD *meth)
         const DSA_METHOD *mtmp;
         mtmp = dsa->meth;
         if (mtmp->finish) mtmp->finish(dsa);
+#ifndef OPENSSL_NO_ENGINE
 	if (dsa->engine)
 		{
 		ENGINE_finish(dsa->engine);
 		dsa->engine = NULL;
 		}
+#endif
         dsa->meth = meth;
         if (meth->init) meth->init(dsa);
         return 1;
@@ -114,6 +118,7 @@ DSA *DSA_new_method(ENGINE *engine)
 		return(NULL);
 		}
 	ret->meth = DSA_get_default_method();
+#ifndef OPENSSL_NO_ENGINE
 	if (engine)
 		{
 		if (!ENGINE_init(engine))
@@ -138,6 +143,7 @@ DSA *DSA_new_method(ENGINE *engine)
 			return NULL;
 			}
 		}
+#endif
 
 	ret->pad=0;
 	ret->version=0;
@@ -158,8 +164,10 @@ DSA *DSA_new_method(ENGINE *engine)
 	CRYPTO_new_ex_data(CRYPTO_EX_INDEX_DSA, ret, &ret->ex_data);
 	if ((ret->meth->init != NULL) && !ret->meth->init(ret))
 		{
+#ifndef OPENSSL_NO_ENGINE
 		if (ret->engine)
 			ENGINE_finish(ret->engine);
+#endif
 		CRYPTO_free_ex_data(CRYPTO_EX_INDEX_DSA, ret, &ret->ex_data);
 		OPENSSL_free(ret);
 		ret=NULL;
@@ -189,8 +197,10 @@ void DSA_free(DSA *r)
 
 	if(r->meth->finish)
 		r->meth->finish(r);
+#ifndef OPENSSL_NO_ENGINE
 	if(r->engine)
 		ENGINE_finish(r->engine);
+#endif
 
 	CRYPTO_free_ex_data(CRYPTO_EX_INDEX_DSA, r, &r->ex_data);
 

crypto/dsa/dsa_ossl.c

@@ -64,7 +64,9 @@
 #include <openssl/dsa.h>
 #include <openssl/rand.h>
 #include <openssl/asn1.h>
+#ifndef OPENSSL_NO_ENGINE
 #include <openssl/engine.h>
+#endif
 
 static DSA_SIG *dsa_do_sign(const unsigned char *dgst, int dlen, DSA *dsa);
 static int dsa_sign_setup(DSA *dsa, BN_CTX *ctx_in, BIGNUM **kinvp, BIGNUM **rp);

crypto/dsa/dsa_sign.c

@@ -64,7 +64,9 @@
 #include <openssl/dsa.h>
 #include <openssl/rand.h>
 #include <openssl/asn1.h>
+#ifndef OPENSSL_NO_ENGINE
 #include <openssl/engine.h>
+#endif
 
 DSA_SIG * DSA_do_sign(const unsigned char *dgst, int dlen, DSA *dsa)
 	{

crypto/dsa/dsa_vrf.c

@@ -65,7 +65,9 @@
 #include <openssl/rand.h>
 #include <openssl/asn1.h>
 #include <openssl/asn1_mac.h>
+#ifndef OPENSSL_NO_ENGINE
 #include <openssl/engine.h>
+#endif
 
 int DSA_do_verify(const unsigned char *dgst, int dgst_len, DSA_SIG *sig,
 		  DSA *dsa)

crypto/dsa/dsatest.c

@@ -68,7 +68,9 @@
 #include <openssl/rand.h>
 #include <openssl/bio.h>
 #include <openssl/err.h>
+#ifndef OPENSSL_NO_ENGINE
 #include <openssl/engine.h>
+#endif
 #ifdef OPENSSL_SYS_WINDOWS
 #include "../bio/bss_file.c"
 #endif