Fix qbs build.

Commit cf56178d introduced an impressive amount of syntax errors.

Change-Id: Ibaf8b8384b06ee92b658b71f08ac8d14e92c19b0
Reviewed-by: Thomas Hartmann <Thomas.Hartmann@digia.com>
Reviewed-by: Joerg Bornemann <joerg.bornemann@digia.com>

src/plugins/plugins.qbs

@@ -2,6 +2,7 @@ import qbs
 
 Project {
     name: "Plugins"
+    property bool buildWelcomePlugin: Qt.core.versionMajor >= 5
 
     references: [
         "analyzerbase/analyzerbase.qbs",
@@ -57,11 +58,6 @@ Project {
         "updateinfo/updateinfo.qbs",
         "valgrind/valgrind.qbs",
         "vcsbase/vcsbase.qbs",
+        "welcome/welcome.qbs"
     ]
-
-    Group {
-        condition: qtcore.versionMajor >= 5
-        references: [ "welcome/welcome.qbs" ]
-    }
-
 }

src/plugins/projectexplorer/projectexplorer.qbs

@@ -135,15 +135,15 @@ QtcPlugin {
             "toolchainoptionspage.cpp", "toolchainoptionspage.h",
             "vcsannotatetaskhandler.cpp", "vcsannotatetaskhandler.h",
         ]
+    }
 
-        Group {
-            condition: qtcore.versionMajor >= 5
-            references: [
-                "projectwelcomepage.cpp",
-                "projectwelcomepage.h"
-            ]
-        }
-
+    Group {
+        name: "Project Welcome Page"
+        condition: project.buildWelcomePlugin
+        files: [
+            "projectwelcomepage.cpp",
+            "projectwelcomepage.h"
+        ]
     }
 
     Group {

src/plugins/qtsupport/qtsupport.qbs

@@ -111,7 +111,8 @@ QtcPlugin {
     ]
 
     Group {
-        condition: qtcore.versionMajor >= 5
+        name: "Getting Started Welcome Page"
+        condition: project.buildWelcomePlugin
         files: [
             "gettingstartedwelcomepage.cpp",
             "gettingstartedwelcomepage.h"

src/plugins/welcome/welcome.qbs

@@ -4,6 +4,7 @@ import "../QtcPlugin.qbs" as QtcPlugin
 
 QtcPlugin {
     name: "Welcome"
+    condition: project.buildWelcomePlugin
 
     Depends { name: "Qt"; submodules: ["widgets", "network", "quick"] }
     Depends { name: "Core" }