add a basic platform-disabling define

qtox.pro

@@ -52,6 +52,7 @@ DEFINES += GIT_VERSION=\"\\\"$$quote($$GIT_VERSION)\\\"\"
 TIMESTAMP = $$system($1 2>null||echo 0||a;rm null;date +%s||echo 0) # I'm so sorry
 DEFINES += TIMESTAMP=$$TIMESTAMP
 DEFINES += LOG_TO_FILE
+DEFINES += QTOX_PLATFORM_EXT # Comment out to increase portability
 
 contains(JENKINS,YES) {
 	INCLUDEPATH += ./libs/include/
@@ -85,7 +86,7 @@ win32 {
         }
 
         contains(JENKINS, YES) {
-            LIBS = ./libs/lib/libtoxav.a ./libs/lib/libvpx.a ./libs/lib/libopus.a ./libs/lib/libtoxdns.a ./libs/lib/libtoxencryptsave.a ./libs/lib/libtoxcore.a ./libs/lib/libsodium.a /usr/lib/libopencv_core.so /usr/lib/libopencv_highgui.so /usr/lib/libopencv_imgproc.so -lopenal -s
+            LIBS = ./libs/lib/libtoxav.a ./libs/lib/libvpx.a ./libs/lib/libopus.a ./libs/lib/libtoxdns.a ./libs/lib/libtoxencryptsave.a ./libs/lib/libtoxcore.a ./libs/lib/libsodium.a /usr/lib/libopencv_core.so /usr/lib/libopencv_highgui.so /usr/lib/libopencv_imgproc.so -lopenal -lX11 -lXss -s
         }
     }
 }
@@ -155,8 +156,7 @@ HEADERS  += src/widget/form/addfriendform.h \
     src/autoupdate.h \
     src/misc/serialize.h \
     src/widget/form/settings/advancedform.h \
-    src/audio.h \
-    src/platform/timer.h
+    src/audio.h
 
 SOURCES += \
     src/widget/form/addfriendform.cpp \
@@ -223,7 +223,11 @@ SOURCES += \
     src/autoupdate.cpp \
     src/misc/serialize.cpp \
     src/widget/form/settings/advancedform.cpp \
-    src/audio.cpp \
-    src/platform/timer_osx.cpp \
-    src/platform/timer_win.cpp \
-    src/platform/timer_x11.cpp
+    src/audio.cpp
+
+contains(DEFINES, QTOX_PLATFORM_EXT) {
+    HEADERS += src/platform/timer.h
+    SOURCES += src/platform/timer_osx.cpp \
+               src/platform/timer_win.cpp \
+               src/platform/timer_x11.cpp
+}

src/platform/timer.h

@@ -14,6 +14,8 @@
     See the COPYING file for more details.
 */
 
+#ifdef QTOX_PLATFORM_EXT
+
 #ifndef PLATFORM_TIMER_H
 #define PLATFORM_TIMER_H
 
@@ -26,3 +28,5 @@ namespace Platform
 }
 
 #endif // PLATFORM_TIMER_H
+
+#endif // QTOX_PLATFORM_EXT

src/widget/form/settings/generalform.cpp

@@ -144,6 +144,11 @@ GeneralForm::GeneralForm(SettingsWidget *myParent) :
     connect(bodyUI->proxyPort, SIGNAL(valueChanged(int)), this, SLOT(onProxyPortEdited(int)));
     connect(bodyUI->reconnectButton, &QPushButton::clicked, this, &GeneralForm::onReconnectClicked);
     connect(bodyUI->cbFauxOfflineMessaging, &QCheckBox::stateChanged, this, &GeneralForm::onFauxOfflineMessaging);
+
+#ifndef QTOX_PLATFORM_EXT
+    bodyUI->autoAwayLabel->setEnabled(false);   // these don't seem to change the appearance of the widgets,
+    bodyUI->autoAwaySpinBox->setEnabled(false); // though they are unusable
+#endif
 }
 
 GeneralForm::~GeneralForm()

src/widget/widget.cpp

@@ -1105,6 +1105,7 @@ bool Widget::event(QEvent * e)
 
 void Widget::onUserAwayCheck()
 {
+#ifdef QTOX_PLATFORM_EXT
     uint32_t autoAwayTime = Settings::getInstance().getAutoAwayTime() * 60 * 1000;
 
     if (ui->statusButton->property("status").toString() == "online")
@@ -1127,6 +1128,7 @@ void Widget::onUserAwayCheck()
     }
     else if (autoAwayActive)
         autoAwayActive = false;
+#endif
 }
 
 void Widget::setStatusOnline()