diff --git a/mac_post_make.sh b/mac_post_make.sh
index f0aa99b1..40edddb5 100755
--- a/mac_post_make.sh
+++ b/mac_post_make.sh
@@ -9,8 +9,8 @@
 # of binary-size if you leave Qt out.
 # (see http://trolltech.com/developer/downloads/qt/mac)
 
-QT_FW_PATH="/Developer/Qt5/5/clang_64/lib"
-QT_PLUGIN_PATH="/Developer/Qt5/5/clang_64/plugins"
+QT_FW_PATH="/Users/$USER/Qt/5.9/clang_64/lib"
+QT_PLUGIN_PATH="/Users/$USER/Qt/5.9/clang_64/plugins"
 SDL_FW_PATH="/Library/Frameworks"
 APPLICATION="./pokerth.app"
 BINARY="$APPLICATION/Contents/MacOs/pokerth"
diff --git a/pokerth_db.pro b/pokerth_db.pro
index 0a7a9b72..035c7817 100644
--- a/pokerth_db.pro
+++ b/pokerth_db.pro
@@ -60,7 +60,7 @@ mac{
         CONFIG += x86_64
         CONFIG -= x86
         CONFIG -= ppc
-        QMAKE_MACOSX_DEPLOYMENT_TARGET = 10.6
+        QMAKE_MACOSX_DEPLOYMENT_TARGET = 10.12
         QMAKE_CXXFLAGS -= -std=gnu++0x
 
 	# for universal-compilation on PPC-Mac uncomment the following line
diff --git a/pokerth_game.pro b/pokerth_game.pro
index 122be9df..4ec08abb 100644
--- a/pokerth_game.pro
+++ b/pokerth_game.pro
@@ -576,7 +576,7 @@ mac {
 	CONFIG += x86_64
 	CONFIG -= x86
 	CONFIG -= ppc
-	QMAKE_MACOSX_DEPLOYMENT_TARGET = 10.6
+	QMAKE_MACOSX_DEPLOYMENT_TARGET = 10.12
 	QMAKE_CXXFLAGS -= -std=gnu++0x
 
 	# workaround for problems with boost_filesystem exceptions
@@ -588,19 +588,18 @@ mac {
 	LIBPATH += lib
 
 	# QT dynamic linked framework (see also mac_post_make.sh)
+    LIBS += -F /Library/Frameworks
 	LIBS += -framework \
 		QtCore
 	LIBS += -framework \
 		QtGui
-
-	# SDL and SDL_mixer come as frameworks
-	LIBS += -framework \
-		SDL
-	LIBS += -framework \
-		SDL_mixer
+    LIBS += -framework \
+        SDL
+    LIBS += -framework \
+        SDL_mixer
 
 	# make sure you have an x86_64 version of boost
-	LIBS += /usr/local/lib/libboost_thread.a
+	LIBS += /usr/local/lib/libboost_thread-mt.a
 	LIBS += /usr/local/lib/libboost_filesystem.a
 	LIBS += /usr/local/lib/libboost_regex.a
 	LIBS += /usr/local/lib/libboost_random.a
@@ -616,15 +615,21 @@ mac {
 		-lprotobuf \
 		-lz \
 		-framework \
-		Carbon
+            Cocoa
 
 	# set the application icon
 	RC_FILE = pokerth.icns
-	LIBPATH += /Developer/SDKs/MacOSX10.6.sdk/usr/lib
-	INCLUDEPATH += /Developer/SDKs/MacOSX10.6.sdk/usr/include/
-	INCLUDEPATH += /Library/Frameworks/SDL.framework/Headers
-	INCLUDEPATH += /Library/Frameworks/SDL_mixer.framework/Headers
+
+    LIBPATH += /usr/local/lib
+    LIBPATH += /usr/local/opt/openssl/lib
+    LIBPATH += /usr/local/opt/tinyxml/lib
+    LIBPATH += /usr/local/opt/protobuf/lib
 	INCLUDEPATH += /usr/local/include
+    INCLUDEPATH += /usr/local/opt/openssl/include
+    INCLUDEPATH += /usr/local/opt/tinyxml/include
+    INCLUDEPATH += /usr/local/opt/protobuf/include
+    INCLUDEPATH += /Library/Frameworks/SDL.framework/Headers
+    INCLUDEPATH += /Library/Frameworks/SDL_mixer.framework/Headers
 }
 OTHER_FILES += docs/infomessage-id-desc.txt
 official_server { 
diff --git a/pokerth_lib.pro b/pokerth_lib.pro
index 37577ac4..7f9b00d6 100644
--- a/pokerth_lib.pro
+++ b/pokerth_lib.pro
@@ -294,17 +294,17 @@ mac{
 	CONFIG += x86_64
 	CONFIG -= x86
 	CONFIG -= ppc
-	QMAKE_MACOSX_DEPLOYMENT_TARGET = 10.6
+	QMAKE_MACOSX_DEPLOYMENT_TARGET = 10.12
 	QMAKE_CXXFLAGS -= -std=gnu++0x
 
 	# for universal-compilation on PPC-Mac uncomment the following line
 	# on Intel-Mac you have to comment this line out or build will fail.
 	#	QMAKE_MAC_SDK=/Developer/SDKs/MacOSX10.4u.sdk/
-
-	INCLUDEPATH += /Developer/SDKs/MacOSX10.6.sdk/usr/include/
-	INCLUDEPATH += /Library/Frameworks/SDL.framework/Headers
-	INCLUDEPATH += /Library/Frameworks/SDL_mixer.framework/Headers
+    LIBPATH += /usr/local/opt/openssl/lib
+    INCLUDEPATH += /usr/local/opt/openssl/include
 	INCLUDEPATH += /usr/local/include
+    INCLUDEPATH += /Library/Frameworks/SDL.framework/Headers
+    INCLUDEPATH += /Library/Frameworks/SDL_mixer.framework/Headers
 }
 
 android{
diff --git a/pokerth_protocol.pro b/pokerth_protocol.pro
index 6f29c786..ede4fb16 100644
--- a/pokerth_protocol.pro
+++ b/pokerth_protocol.pro
@@ -52,7 +52,7 @@ mac {
         CONFIG += x86_64
         CONFIG -= x86
         CONFIG -= ppc
-        QMAKE_MACOSX_DEPLOYMENT_TARGET = 10.6
+        QMAKE_MACOSX_DEPLOYMENT_TARGET = 10.12
 
 	# for universal-compilation on PPC-Mac uncomment the following line
 	# on Intel-Mac you have to comment this line out or build will fail.
diff --git a/pokerth_server.pro b/pokerth_server.pro
index 0c632b55..1f701b16 100644
--- a/pokerth_server.pro
+++ b/pokerth_server.pro
@@ -310,7 +310,7 @@ mac {
 	CONFIG += x86_64
 	CONFIG -= x86
 	CONFIG -= ppc
-	QMAKE_MACOSX_DEPLOYMENT_TARGET = 10.6
+	QMAKE_MACOSX_DEPLOYMENT_TARGET = 10.12
 	QMAKE_CXXFLAGS -= -std=gnu++0x
 
 	# workaround for problems with boost_filesystem exceptions
@@ -322,7 +322,7 @@ mac {
 
 	LIBPATH += lib
 	# make sure you have an x86_64 version of boost
-	LIBS += /usr/local/lib/libboost_thread.a
+	LIBS += /usr/local/lib/libboost_thread-mt.a
 	LIBS += /usr/local/lib/libboost_filesystem.a
 	LIBS += /usr/local/lib/libboost_regex.a
 	LIBS += /usr/local/lib/libboost_random.a