Fixed Linux build

sdl-proxy.c

@@ -4,10 +4,13 @@
 #include <string.h>
 #include <stdlib.h>
 #include <stdio.h>
-#ifdef _WIN32
+#if defined(_WIN32)
 #include <Windows.h>
-#else
+#elif defined(__APPLE__)
 #include <unistd.h>
+#else
+#include <threads.h>
+#include <time.h>
 #endif
 
 #define SPE_CONNECT 0
@@ -203,10 +206,15 @@ int main( int argc, char *argv[] ) {
 			}
 		}
 
-#ifdef _WIN32
+#if defined(_WIN32)
 		Sleep( 10 );
-#else
+#elif defined(__APPLE__)
 		usleep( 10000u );
+#else
+		thrd_sleep(&(struct timespec){
+			.tv_sec = 0,
+			.tv_nsec = 10000000ll
+		}, NULL);
 #endif
 	}
 }