1 files changed, 11 insertions, 0 deletions
diff --git a/src/main/groovy/org/qtproject/qt/gradleplugin/QtGradlePlugin.groovy b/src/main/groovy/org/qtproject/qt/gradleplugin/QtGradlePlugin.groovy
index 7aa733a..0bdf0a5 100644
--- a/src/main/groovy/org/qtproject/qt/gradleplugin/QtGradlePlugin.groovy
+++ b/src/main/groovy/org/qtproject/qt/gradleplugin/QtGradlePlugin.groovy
@@ -6,6 +6,7 @@ package org.qtproject.qt.gradleplugin
 import org.gradle.api.Plugin
 import org.gradle.api.Project
 
+@Deprecated
 class QtPluginExtension {
     // qtPath and qtKitDir kept as File to avoid breaking the public API, even though they are used as strings later.
     File qtPath
@@ -60,6 +61,16 @@ class QtGradlePlugin implements Plugin<Project> {
                 }
                 catch (GroovyException) { }
             }
+
+            if (extension.qtPath ||
+                    extension.qtKitDir ||
+                    extension.projectPath ||
+                    extension.ninjaPath ||
+                    extension.extraCMakeArguments) {
+                System.err.println("Warning: QtBuild extension is deprecated and will be removed " +
+                        "in the future.\nDefine properties in gradle.properties instead. " +
+                        "For more information, see https://doc.qt.io/qtgradleplugin/")
+            }
         }
     }