deleted file build_num; will be adding this file when we produce source tar ball; if the file is missing, will use git branch and last commit in place of the build number

qmake.inc.in

@@ -83,4 +83,15 @@ exists(qmake2.inc) {
   include(qmake2.inc)
 }
 
+exists(build_num) {
+	include(build_num)
+}
+if (isEmpty(BUILD_NUM)) {
+	GIT_BRANCH=$$system(git branch | grep '\\*' | cut -c3-)
+	GIT_COMMIT=$$system(git show --abbrev-commit -1 --pretty=oneline --shortstat | head -1 | cut -c1-7)
+	BUILD_NUM="$$GIT_BRANCH:$$GIT_COMMIT"
+}
+
+DEFINES += BUILD_NUM=$$BUILD_NUM
+
 INSTALLS += target