Remove warnings.

apps/ca.c

@@ -1336,7 +1336,7 @@ bad:
 			j=x->cert_info->serialNumber->length;
 			p=(char *)x->cert_info->serialNumber->data;
 			
-			if(strlen(outdir) >= (j ? BSIZE-j*2-6 : BSIZE-8))
+			if(strlen(outdir) >= (size_t)(j ? BSIZE-j*2-6 : BSIZE-8))
 				{
 				BIO_printf(bio_err,"certificate file name too long\n");
 				goto err;

crypto/aes/aes_cbc.c

@@ -63,7 +63,7 @@ void AES_cbc_encrypt(const unsigned char *in, unsigned char *out,
 		     const unsigned long length, const AES_KEY *key,
 		     unsigned char *ivec, const int enc) {
 
-	int n;
+	unsigned long n;
 	unsigned long len = length;
 	unsigned char tmp[AES_BLOCK_SIZE];
 

crypto/buffer/buffer.h

@@ -63,6 +63,7 @@
 extern "C" {
 #endif
 
+#include <stddef.h>
 #include <sys/types.h>
 
 typedef struct buf_mem_st