fix trivial compile errors under windows

libs/esl/src/esl_json.c

@@ -33,8 +33,8 @@ static int cJSON_strcasecmp(const char *s1,const char *s2)
 	return tolower(*(const unsigned char *)s1) - tolower(*(const unsigned char *)s2);
 }
 
-static void *(*cJSON_malloc)(size_t sz) = malloc;
-static void (*cJSON_free)(void *ptr) = free;
+static void *(*cJSON_malloc)(size_t sz);
+static void (*cJSON_free)(void *ptr);
 
 static char* cJSON_strdup(const char* str)
 {
@@ -158,7 +158,7 @@ static const char *parse_string(cJSON *item,const char *str)
 					switch (len) {
 						case 3: *--ptr2 =((uc | 0x80) & 0xBF); uc >>= 6;
 						case 2: *--ptr2 =((uc | 0x80) & 0xBF); uc >>= 6;
-						case 1: *--ptr2 =(uc | firstByteMark[len]);
+						case 1: *--ptr2 =(char)(uc | firstByteMark[len]);
 					}
 					ptr2+=len;ptr+=4;
 					break;

src/switch_ivr_originate.c

@@ -413,7 +413,7 @@ static uint8_t check_channel_status(originate_global_t *oglobals, originate_stat
 	int pindex = -1;
 	char bug_key[256] = "";
 	int send_ringback = 0;
-	uint32_t ring_ready_val = 0;
+	uint8_t ring_ready_val = 0;
 
 	oglobals->hups = 0;
 	oglobals->idx = IDX_NADA;
@@ -452,7 +452,7 @@ static uint8_t check_channel_status(originate_global_t *oglobals, originate_stat
 			continue;
 		}
 
-		if ((ring_ready_val = switch_channel_test_flag(originate_status[i].peer_channel, CF_RING_READY))) {
+		if ((ring_ready_val = (uint8_t)switch_channel_test_flag(originate_status[i].peer_channel, CF_RING_READY))) {
 			if (!originate_status[i].ring_ready) {
 				originate_status[i].ring_ready = ring_ready_val;
 			}

src/switch_json.c

@@ -33,8 +33,8 @@ static int cJSON_strcasecmp(const char *s1,const char *s2)
 	return tolower(*(const unsigned char *)s1) - tolower(*(const unsigned char *)s2);
 }
 
-static void *(*cJSON_malloc)(size_t sz) = malloc;
-static void (*cJSON_free)(void *ptr) = free;
+static void *(*cJSON_malloc)(size_t sz);
+static void (*cJSON_free)(void *ptr);
 
 static char* cJSON_strdup(const char* str)
 {
@@ -158,7 +158,7 @@ static const char *parse_string(cJSON *item,const char *str)
 					switch (len) {
 						case 3: *--ptr2 =((uc | 0x80) & 0xBF); uc >>= 6;
 						case 2: *--ptr2 =((uc | 0x80) & 0xBF); uc >>= 6;
-						case 1: *--ptr2 =(uc | firstByteMark[len]);
+						case 1: *--ptr2 =(char)(uc | firstByteMark[len]);
 					}
 					ptr2+=len;ptr+=4;
 					break;