Try avoid redefining LOC_REV.

--HG--
branch : develop

src/app/app.pro

@@ -551,14 +551,13 @@ CONFIG(debug, debug|release){
     }
 
     DEFINES += QT_NO_DEBUG_OUTPUT
+
     #local revision number for using in version
-    !system(hg) {
-        DEFINES += "LOC_REV=0"
-    }
-    else
-    {
-        DEFINES += LOC_REV=$$system(hg parents --template '{rev}')
+    HG_REV=$$system(hg parents --template '{rev}')
+    isEmpty(HG_REV){
+        HG_REV = 0
     }
+    DEFINES += "LOC_REV=$${HG_REV}"
 }
 
 message(Qt version: $$[QT_VERSION])

src/libs/qmuparser/qmuparser.pro

@@ -490,4 +490,3 @@ QMAKE_DISTCLEAN += \
     $${DESTDIR}/* \
     $${OBJECTS_DIR}/* \
     $${MOC_DIR}/*
-