diff --git a/chatterino.pro b/chatterino.pro
index 3c732a15..ebc70e3a 100644
--- a/chatterino.pro
+++ b/chatterino.pro
@@ -84,7 +84,10 @@ HEADERS  += mainwindow.h \
     message.h \
     word.h \
     link.h \
-    fonts.h
+    fonts.h \
+    common.h
+
+PRECOMPILED_HEADER = common.h
 
 FORMS    += \
     dialog.ui
diff --git a/common.h b/common.h
new file mode 100644
index 00000000..ca8695fc
--- /dev/null
+++ b/common.h
@@ -0,0 +1,15 @@
+#ifndef COMMON_H
+#define COMMON_H
+
+#define STRINGISE_IMPL(x) #x
+#define STRINGISE(x) STRINGISE_IMPL(x)
+
+// Use: #pragma message WARN("My message")
+#if _MSC_VER
+#   define FILE_LINE_LINK __FILE__ "(" STRINGISE(__LINE__) ") : "
+#   define WARN(exp) (FILE_LINE_LINK "WARNING: " exp)
+#else//__GNUC__ - may need other defines for different compilers
+#   define WARN(exp) ("WARNING: " exp)
+#endif
+
+#endif // COMMON_H
diff --git a/emotes.cpp b/emotes.cpp
index 457a951a..24e59b16 100644
--- a/emotes.cpp
+++ b/emotes.cpp
@@ -16,7 +16,7 @@ Emotes::Emotes()
 
 LazyLoadedImage* Emotes::getCheerImage(long long amount, bool animated)
 {
-#warning "xD"
+#pragma message WARN("Implement Emotes::getCheerImage")
 //    object image;
 
 //    if (cheer >= 100000)
diff --git a/ircmanager.cpp b/ircmanager.cpp
index d2d00f5f..75fb960e 100644
--- a/ircmanager.cpp
+++ b/ircmanager.cpp
@@ -208,7 +208,7 @@ void IrcManager::addIgnoredUser(QString const &username)
 {
     QString errorMessage;
     if (!tryAddIgnoredUser(username, errorMessage)) {
-#warning "xD"
+#pragma message WARN("Implement IrcManager::addIgnoredUser")
     }
 }
 
@@ -241,6 +241,6 @@ void IrcManager::removeIgnoredUser(QString const &username)
 {
     QString errorMessage;
     if (!tryRemoveIgnoredUser(username, errorMessage)) {
-#warning "xD"
+#pragma message WARN("TODO: Implement IrcManager::removeIgnoredUser")
     }
 }
diff --git a/message.cpp b/message.cpp
index e9f93a34..933f9096 100644
--- a/message.cpp
+++ b/message.cpp
@@ -3,6 +3,8 @@
 #include "colorscheme.h"
 #include "emotes.h"
 
+#include <ctime>
+
 LazyLoadedImage* Message::badgeStaff       = new LazyLoadedImage(new QImage(":/images/staff_bg.png"));
 LazyLoadedImage* Message::badgeAdmin       = new LazyLoadedImage(new QImage(":/images/admin_bg.png"));
 LazyLoadedImage* Message::badgeModerator   = new LazyLoadedImage(new QImage(":/images/moderator_bg.png"));
@@ -24,7 +26,7 @@ Message::Message(const IrcPrivateMessage& ircMessage, const Channel& Channel)
 
     // timestamps
     auto iterator = ircMessage.tags().find("tmi-sent-ts");
-    time_t time = std::time(NULL);
+    std::time_t time = std::time(NULL);
 
     if (iterator != ircMessage.tags().end())
     {
@@ -70,7 +72,7 @@ Message::Message(const IrcPrivateMessage& ircMessage, const Channel& Channel)
     }
 
     // highlights
-#warning "xD"
+#pragma message WARN("xD")
 
     // color
     QColor usernameColor = ColorScheme::getInstance().SystemMessageColor;