diff --git a/src/bmz.c b/src/bmz.c
index 683aeb2..1424d59 100644
--- a/src/bmz.c
+++ b/src/bmz.c
@@ -135,7 +135,7 @@ cmph_t *bmz_new(cmph_config_t *mph, float c)
 	  used_edges = (cmph_uint8 *)malloc(bmz->m/8 + 1);
 	  memset(used_edges, 0, bmz->m/8 + 1);
 	  free(bmz->g);
-	  bmz->g = calloc(bmz->n, sizeof(cmph_uint32));
+	  bmz->g = (cmph_uint32 *)calloc(bmz->n, sizeof(cmph_uint32));
 	  assert(bmz->g);
 	  for (i = 0; i < bmz->n; ++i) // critical nodes
 	  {
@@ -316,7 +316,7 @@ static cmph_uint8 bmz_traverse_critical_nodes_heuristic(bmz_config_data_t *bmz,
 					{
 					        if(nunused_g_values == unused_g_values_capacity)
 						{
-   						        unused_g_values = realloc(unused_g_values, (unused_g_values_capacity + BUFSIZ)*sizeof(cmph_uint32));
+   						        unused_g_values = (cmph_uint32 *)realloc(unused_g_values, (unused_g_values_capacity + BUFSIZ)*sizeof(cmph_uint32));
 						        unused_g_values_capacity += BUFSIZ;  							
 						} 
 						unused_g_values[nunused_g_values++] = next_g;							
diff --git a/src/bmz8.c b/src/bmz8.c
index e8128d2..2fb7d88 100644
--- a/src/bmz8.c
+++ b/src/bmz8.c
@@ -142,7 +142,7 @@ cmph_t *bmz8_new(cmph_config_t *mph, float c)
 	  used_edges = (cmph_uint8 *)malloc(bmz8->m/8 + 1);
 	  memset(used_edges, 0, bmz8->m/8 + 1);
 	  free(bmz8->g);
-	  bmz8->g = calloc(bmz8->n, sizeof(cmph_uint8));
+	  bmz8->g = (cmph_uint32 *)calloc(bmz8->n, sizeof(cmph_uint8));
 	  assert(bmz8->g);
 	  for (i = 0; i < bmz8->n; ++i) // critical nodes
 	  {
diff --git a/src/brz.c b/src/brz.c
index f300272..839081a 100755
--- a/src/brz.c
+++ b/src/brz.c
@@ -79,12 +79,12 @@ void brz_config_set_tmp_dir(cmph_config_t *mph, cmph_uint8 *tmp_dir)
 		free(brz->tmp_dir);
 		if(tmp_dir[len-1] != '/')
 		{
-			brz->tmp_dir = calloc(len+2, sizeof(cmph_uint8));
+			brz->tmp_dir = (cmph_uint8 *)calloc(len+2, sizeof(cmph_uint8));
 			sprintf((char *)(brz->tmp_dir), "%s/", (char *)tmp_dir); 
 		}
 		else
 		{
-			brz->tmp_dir = calloc(len+1, sizeof(cmph_uint8));
+			brz->tmp_dir = (cmph_uint8 *)calloc(len+1, sizeof(cmph_uint8));
 			sprintf((char *)(brz->tmp_dir), "%s", (char *)tmp_dir); 
 		}
 		
@@ -116,7 +116,7 @@ cmph_t *brz_new(cmph_config_t *mph, float c)
 	brz->c = c;
 	brz->m = mph->key_source->nkeys;
 	DEBUGP("m: %u\n", brz->m);
-	brz->k = ceil(brz->m/(brz->b));
+	brz->k = ceil(((float)brz->m)/brz->b);
 	DEBUGP("k: %u\n", brz->k);
 	brz->size   = (cmph_uint8 *) calloc(brz->k, sizeof(cmph_uint8));
 	
@@ -259,7 +259,7 @@ static int brz_gen_mphf(cmph_config_t *mph)
 			}
 			nkeys_in_buffer = 0;
 			memory_usage = 0;
-			bzero(buckets_size, brz->k*sizeof(cmph_uint32));
+			memset((void *)buckets_size, 0, brz->k*sizeof(cmph_uint32));
 			nflushes++;
 			free(keys_index);
 			fclose(tmp_fd);
@@ -318,7 +318,7 @@ static int brz_gen_mphf(cmph_config_t *mph)
 		}
 		nkeys_in_buffer = 0;
 		memory_usage = 0;
-		bzero(buckets_size, brz->k*sizeof(cmph_uint32));
+		memset((void *)buckets_size, 0, brz->k*sizeof(cmph_uint32));
 		nflushes++;
 		free(keys_index);
 		fclose(tmp_fd);
diff --git a/src/chm.c b/src/chm.c
index 908c3d3..24bcbc8 100644
--- a/src/chm.c
+++ b/src/chm.c
@@ -109,7 +109,7 @@ cmph_t *chm_new(cmph_config_t *mph, float c)
  	visited = (cmph_uint8 *)malloc(chm->n/8 + 1);
 	memset(visited, 0, chm->n/8 + 1);
 	free(chm->g);
-	chm->g = malloc(chm->n * sizeof(cmph_uint32));
+	chm->g = (cmph_uint32 *)malloc(chm->n * sizeof(cmph_uint32));
 	assert(chm->g);
 	for (i = 0; i < chm->n; ++i)
 	{
diff --git a/src/cmph.c b/src/cmph.c
index be4e64d..38fda0e 100644
--- a/src/cmph.c
+++ b/src/cmph.c
@@ -112,7 +112,7 @@ static cmph_uint32 count_nlfile_keys(FILE *fd)
 
 cmph_io_adapter_t *cmph_io_nlfile_adapter(FILE * keys_fd)
 {
-  cmph_io_adapter_t * key_source = malloc(sizeof(cmph_io_adapter_t));
+  cmph_io_adapter_t * key_source = (cmph_io_adapter_t *)malloc(sizeof(cmph_io_adapter_t));
   assert(key_source);
   key_source->data = (void *)keys_fd;
   key_source->nkeys = count_nlfile_keys(keys_fd);
@@ -129,7 +129,7 @@ void cmph_io_nlfile_adapter_destroy(cmph_io_adapter_t * key_source)
 
 cmph_io_adapter_t *cmph_io_nlnkfile_adapter(FILE * keys_fd, cmph_uint32 nkeys)
 {
-  cmph_io_adapter_t * key_source = malloc(sizeof(cmph_io_adapter_t));
+  cmph_io_adapter_t * key_source = (cmph_io_adapter_t *)malloc(sizeof(cmph_io_adapter_t));
   assert(key_source);
   key_source->data = (void *)keys_fd;
   key_source->nkeys = nkeys;
@@ -146,8 +146,8 @@ void cmph_io_nlnkfile_adapter_destroy(cmph_io_adapter_t * key_source)
 
 static cmph_io_adapter_t *cmph_io_vector_new(void * vector, cmph_uint32 nkeys)
 {
-	cmph_io_adapter_t * key_source = malloc(sizeof(cmph_io_adapter_t));
-	cmph_vector_t * cmph_vector = malloc(sizeof(cmph_vector_t));
+	cmph_io_adapter_t * key_source = (cmph_io_adapter_t *)malloc(sizeof(cmph_io_adapter_t));
+	cmph_vector_t * cmph_vector = (cmph_vector_t *)malloc(sizeof(cmph_vector_t));
 	assert(key_source);
 	assert(cmph_vector);
 	cmph_vector->vector = vector;
diff --git a/src/cmph_structs.c b/src/cmph_structs.c
index 30790bf..f7b652d 100644
--- a/src/cmph_structs.c
+++ b/src/cmph_structs.c
@@ -9,7 +9,6 @@ cmph_config_t *__config_new(cmph_io_adapter_t *key_source)
 {
 	cmph_config_t *mph = (cmph_config_t *)malloc(sizeof(cmph_config_t));
 	memset(mph, 0, sizeof(cmph_config_t));
-	DEBUGP("Creating mph with algorithm %s\n", cmph_names[algo]);
 	if (mph == NULL) return NULL;
 	mph->key_source = key_source;
 	mph->verbosity = 0;
diff --git a/src/cmph_structs.h b/src/cmph_structs.h
index d150a60..4bfe08b 100644
--- a/src/cmph_structs.h
+++ b/src/cmph_structs.h
@@ -25,7 +25,7 @@ struct __cmph_t
 };
 
 cmph_config_t *__config_new(cmph_io_adapter_t *key_source);
-void __config_destroy();
+void __config_destroy(cmph_config_t*);
 void __cmph_dump(cmph_t *mphf, FILE *);
 cmph_t *__cmph_load(FILE *f);
 
diff --git a/src/hash.c b/src/hash.c
index f09c47b..925043a 100644
--- a/src/hash.c
+++ b/src/hash.c
@@ -77,7 +77,7 @@ void hash_state_dump(hash_state_t *state, char **buf, cmph_uint32 *buflen)
 		default:
 			assert(0);
 	}
-	*buf = malloc(strlen(cmph_hash_names[state->hashfunc]) + 1 + *buflen);
+	*buf = (char *)malloc(strlen(cmph_hash_names[state->hashfunc]) + 1 + *buflen);
 	memcpy(*buf, cmph_hash_names[state->hashfunc], strlen(cmph_hash_names[state->hashfunc]) + 1);
 	DEBUGP("Algobuf is %u\n", *(cmph_uint32 *)algobuf);
 	memcpy(*buf + strlen(cmph_hash_names[state->hashfunc]) + 1, algobuf, *buflen);
diff --git a/src/hashtree.c b/src/hashtree.c
index 31e64f0..4a480a9 100644
--- a/src/hashtree.c
+++ b/src/hashtree.c
@@ -105,7 +105,7 @@ cmph_t *hashtree_new(cmph_config_t *mph, float c)
  	visited = (char *)malloc(hashtree->n/8 + 1);
 	memset(visited, 0, hashtree->n/8 + 1);
 	free(hashtree->g);
-	hashtree->g = malloc(hashtree->n * sizeof(cmph_uint32));
+	hashtree->g = (cmph_uint32 *)malloc(hashtree->n * sizeof(cmph_uint32));
 	assert(hashtree->g);
 	for (i = 0; i < hashtree->n; ++i)
 	{
diff --git a/src/jenkins_hash.c b/src/jenkins_hash.c
index d720fcd..843571c 100644
--- a/src/jenkins_hash.c
+++ b/src/jenkins_hash.c
@@ -162,7 +162,7 @@ cmph_uint32 jenkins_hash(jenkins_state_t *state, const char *k, cmph_uint32 keyl
 void jenkins_state_dump(jenkins_state_t *state, char **buf, cmph_uint32 *buflen)
 {
 	*buflen = sizeof(cmph_uint32);
-	*buf = malloc(*buflen);
+	*buf = (char *)malloc(*buflen);
 	if (!*buf) 
 	{
 		*buflen = UINT_MAX;