Disable requirement of using ccache.

--HG--
branch : develop

Valentina.pri

@@ -70,6 +70,9 @@ defineReplace(set_PCH){
 }
 
 defineReplace(enable_ccache){
+    no_ccache{ # For enable run qmake with CONFIG+=no_ccache
+        # do nothing
+    } else {
         # ccache support only Unix systems.
         unix:{
             # This need for turn on ccache.
@@ -88,6 +91,7 @@ defineReplace(enable_ccache){
                 export(QMAKE_CXX) # export value to global variable.
             }
         }
+    }
     return(true)
 }