Compiles, links and runs (functionality not tested)

pglab/main.cpp

@@ -1,12 +1,15 @@
 #include "MasterController.h"
 #include <QApplication>
-#include <winsock2.h>
+#ifdef _WIN32
+# include <winsock2.h>
+#endif
 #include <memory>
 
 int main(int argc, char *argv[])
 {
 
 	/* Use the MAKEWORD(lowbyte, highbyte) macro declared in Windef.h */
+#ifdef _WIN32
 	WORD wVersionRequested = MAKEWORD(2, 2);
 	WSADATA wsaData;
 	int err = WSAStartup(wVersionRequested, &wsaData);
@@ -16,7 +19,7 @@ int main(int argc, char *argv[])
 		printf("WSAStartup failed with error: %d\n", err);
 		return 1;
 	}
-
+#endif
 	QApplication a(argc, argv);
 
 	QCoreApplication::setOrganizationName("pglab");
@@ -26,8 +29,9 @@ int main(int argc, char *argv[])
 	auto master_controller = std::make_unique<MasterController>();
 	master_controller->init();
 	int result = a.exec();
+#ifdef _WIN32
 	WSACleanup();
-
+#endif
 	return result;
 }