Use the configure script to prepare the build in Mac OSX too. Closes #2295.

macxconf.pri

@@ -1,26 +1,15 @@
-PREFIX = /usr/local
-BINDIR = /usr/local/bin
-DATADIR = /usr/local/share
+# Generated by the configure file
+# Ignore any WARNING about 'conf.pri' missing during configure. The file should be found during make.
+# If not there will be a WARNING again.
+# The first path is used when the source is being build by packagers (pbuilder/sbuild/etc)
+# The second path is used when you manually run the configure script in the root folder (eg when using qt creator)
+exists($$OUT_PWD/../conf.pri) {
+    include($$OUT_PWD/../conf.pri)
+} else {
+    include(conf.pri)
+}
 
-# Use pkg-config to get all necessary libtorrent DEFINES
-CONFIG += link_pkgconfig
-PKGCONFIG += libtorrent-rasterbar
-DEFINES += BOOST_ASIO_DYN_LINK
-
-# Special include/libs paths (macports)
-INCLUDEPATH += /usr/include/openssl /usr/include /opt/local/include/boost /opt/local/include
-LIBS += -L/opt/local/lib
-
-# OpenSSL lib
-LIBS += -lssl -lcrypto
-# Boost system lib
-LIBS += -lboost_system-mt
-# Boost filesystem lib (Not needed for libtorrent >= 0.16.0)
-#LIBS += -lboost_filesystem-mt
-# Carbon
 LIBS += -framework Carbon -framework IOKit
-# Zlib
-LIBS += -lz
 
 document_icon.path = Contents/Resources
 document_icon.files = mac/qBitTorrentDocument.icns