improve compilability

src/lib/ebus/device.cpp

@@ -886,7 +886,12 @@ result_t SerialDevice::open() {
   // create new settings
   memset(&newSettings, 0, sizeof(newSettings));
 
+#ifdef HAVE_CFSETSPEED
   cfsetspeed(&newSettings, m_enhancedProto ? (m_enhancedHighSpeed ? B115200 : B9600) : B2400);
+#else
+  cfsetispeed(&newSettings, m_enhancedProto ? (m_enhancedHighSpeed ? B115200 : B9600) : B2400);
+  cfsetospeed(&newSettings, m_enhancedProto ? (m_enhancedHighSpeed ? B115200 : B9600) : B2400);
+#endif
   newSettings.c_cflag |= (CS8 | CLOCAL | CREAD);
   newSettings.c_lflag &= ~(ICANON | ECHO | ECHOE | ISIG);  // non-canonical mode
   newSettings.c_iflag |= IGNPAR;  // ignore parity errors
@@ -924,8 +929,8 @@ void SerialDevice::close() {
 }
 
 void SerialDevice::checkDevice() {
-  int port;
-  if (ioctl(m_fd, TIOCMGET, &port) == -1) {
+  int cnt;
+  if (ioctl(m_fd, FIONREAD, &cnt) == -1) {
     close();
   }
 }

src/lib/utils/httpclient.cpp

@@ -435,6 +435,7 @@ bool HttpClient::request(const string& method, const string& uri, const string&
   string headers = result.substr(0, pos+2);  // including final \r\n
   const char* hdrs = headers.c_str();
   *response = result.substr(pos+4);
+#ifdef HAVE_TIME_H
   if (time) {
     pos = headers.find("\r\nLast-Modified: ");
     if (pos != string::npos && headers.substr(pos+42, 4) == " GMT") {
@@ -474,6 +475,7 @@ bool HttpClient::request(const string& method, const string& uri, const string&
       }
     }
   }
+#endif
   pos = headers.find("\r\nContent-Length: ");
   if (pos == string::npos) {
     disconnect();

src/lib/utils/tcpsocket.cpp

@@ -124,11 +124,6 @@ int tcpKeepAliveInterval) {
     }
 #endif
   }
-#ifndef HAVE_PPOLL
-#ifndef HAVE_PSELECT
-  timeout = 0;
-#endif
-#endif
   if (tcpConnectTimeout > 0 && fcntl(sfd, F_SETFL, O_NONBLOCK) < 0) {  // set non-blocking
     close(sfd);
     return -1;
@@ -140,9 +135,15 @@ int tcpKeepAliveInterval) {
       return -1;
     }
     if (tcpConnectTimeout > 0) {
+#if defined(HAVE_PPOLL) || defined(HAVE_PSELECT)
       struct timespec tdiff;
       tdiff.tv_sec = tcpConnectTimeout;
       tdiff.tv_nsec = 0;
+#else
+      struct timeval tdiff;
+      tdiff.tv_sec = tcpConnectTimeout;
+      tdiff.tv_usec = 0;
+#endif
 #ifdef HAVE_PPOLL
       nfds_t nfds = 1;
       struct pollfd fds[nfds];
@@ -159,7 +160,11 @@ int tcpKeepAliveInterval) {
       FD_ZERO(&writefds);
       FD_ZERO(&exceptfds);
       FD_SET(sfd, &readfds);
+#ifdef HAVE_PSELECT
       ret = pselect(sfd + 1, &readfds, &writefds, &exceptfds, &tdiff, nullptr);
+#else
+      ret = select(sfd + 1, &readfds, &writefds, &exceptfds, &tdiff);
+#endif
       if (ret >= 1 && FD_ISSET(sfd, &exceptfds)) {
         ret = -1;
       }