Fix some warnings. Contributed by Anonymous.

Configure

@@ -83,6 +83,7 @@ my %table=(
 "purify",	"purify gcc:-g -DPURIFY -Wall:-lsocket -lnsl::::",
 "debug",	"gcc:-DBN_DEBUG -DREF_CHECK -DCRYPTO_MDEBUG -ggdb -g2 -Wformat -Wshadow -Wmissing-prototypes -Wmissing-declarations -Werror:-lefence::::",
 "debug-ben",	"gcc:-DBN_DEBUG -DREF_CHECK -DCRYPTO_MDEBUG -O2 -Wall -Wshadow -Werror -pipe:::::",
+"debug-ben-strict",	"gcc:-DBN_DEBUG -DREF_CHECK -DCRYPTO_MDEBUG -O2 -Wall -Wshadow -Werror -Wpointer-arith -Wcast-qual -Wwrite-strings -pipe:::::",
 "debug-rse","cc:-DTERMIOS -DL_ENDIAN -pipe -O -g -ggdb3 -Wall::BN_LLONG $x86_gcc_des $x86_gcc_opts:$x86_elf_asm",
 "dist",		"cc:-O -DNOPROTO::::",
 

crypto/asn1/asn_pack.c

@@ -114,7 +114,9 @@ char *ASN1_unpack_string (oct, d2i)
 ASN1_STRING *oct;
 char *(*d2i)();
 {
-	unsigned char *p, *ret;
+	unsigned char *p;
+	char *ret;
+
 	p = oct->data;
 	if(!(ret = d2i(NULL, &p, oct->length)))
 		ASN1err(ASN1_F_ASN1_UNPACK_STRING,ASN1_R_DECODE_ERROR);

crypto/evp/e_cbc_r2.c

@@ -192,7 +192,7 @@ int i;
 		}
 	}
 
-int rc2_get_asn1_type_and_iv(c,type)
+static int rc2_get_asn1_type_and_iv(c,type)
 EVP_CIPHER_CTX *c;
 ASN1_TYPE *type;
 	{

crypto/pkcs12/p12_decr.c

@@ -122,8 +122,10 @@ int passlen;
 ASN1_OCTET_STRING *oct;
 int seq;
 {
-	unsigned char *out, *p, *ret;
+	unsigned char *out, *p;
+	char *ret;
 	int outlen;
+
 	if (!PKCS12_pbe_crypt (algor, pass, passlen, oct->data, oct->length,
 				 &out, &outlen, 0)) {
 		PKCS12err(PKCS12_F_PKCS12_DECRYPT_D2I,PKCS12_R_PKCS12_PBE_CRYPT_ERROR);

crypto/x509v3/v3_skey.c

@@ -115,7 +115,7 @@ char *str;
 
 }
 
-ASN1_OCTET_STRING *s2i_skey_id(method, ctx, str)
+static ASN1_OCTET_STRING *s2i_skey_id(method, ctx, str)
 X509V3_EXT_METHOD *method;
 X509V3_CTX *ctx;
 char *str;

ssl/ssl_sess.c

@@ -251,7 +251,7 @@ int len;
 
 	if (ret->cipher == NULL)
 		{
-		char buf[5],*p;
+		unsigned char buf[5],*p;
 		unsigned long l;
 
 		p=buf;