refs #482 Added new qmake feature files and includes.

mkspecs/features/wordsize.pri

@@ -0,0 +1,37 @@
+win32-msvc* {
+    win32:contains(QMAKE_TARGET.arch, x86_64) {
+        WORD_SIZE = 64
+    }
+    else {
+        WORD_SIZE = 32
+    }
+}
+win32-g++ {
+    WIN_FIND = $$(SYSTEMROOT)\system32\find
+    MINGW64 = $$system($$QMAKE_CXX -Q --help=target | $$WIN_FIND \"-m64\")
+    contains(MINGW64,[enabled]) {
+        WORD_SIZE = 64
+    }
+    else {
+        WORD_SIZE = 32
+    }
+}
+linux-g++ {
+    GCC64 = $$system($$QMAKE_CXX -Q --help=target | grep m64)
+    contains(GCC64,[enabled]) {
+        WORD_SIZE = 64
+    }
+    else {
+        WORD_SIZE = 32
+    }
+}
+linux-g++-32 {
+    WORD_SIZE = 32
+}
+linux-g++-64 {
+    WORD_SIZE = 64
+}
+macx-clang {
+    # TODO
+    WORD_SIZE = 64
+}