Fixes compatibility issues when making with OSX

Signed-off-by: cronzon <cronzon@switchfly.com>

embedded8266/web/execute_reflash.c

@@ -14,6 +14,11 @@
 #define BLOCK_SIZE 65536
 #define SECTOR_SIZE 4096
 #define PADDING 1024
+
+#ifndef MSG_NOSIGNAL
+	#define MSG_NOSIGNAL 0x0 //Don't request NOSIGNAL on systems where this is not implemented.
+#endif
+
 int sockfd;
 	struct sockaddr_in servaddr,cliaddr;
 

embedded8266/web/pushtodev.c

@@ -12,6 +12,11 @@
 #include <string.h>
 
 #define sector_SIZE 4096
+
+#ifndef MSG_NOSIGNAL
+	#define MSG_NOSIGNAL 0x0 //Don't request NOSIGNAL on systems where this is not implemented.
+#endif
+
 int sockfd;
 char recvline[10000];