Qmake: Accept global build settings as authorative

... when initializing build configuration.

Potential re-alignment with contents of pre-existing Makefiles
is confusing at best, and depends on the presence of Makefiles
that are typically close to invisble when using an IDE.

Change-Id: Iadbab4f32badfbf948cfa2a1b256932acbfe858f
Reviewed-by: Christian Kandeler <christian.kandeler@qt.io>

src/plugins/qmakeprojectmanager/qmakebuildconfiguration.cpp

@@ -44,6 +44,7 @@
 #include <projectexplorer/buildaspects.h>
 #include <projectexplorer/buildinfo.h>
 #include <projectexplorer/buildmanager.h>
+#include <projectexplorer/buildpropertiessettings.h>
 #include <projectexplorer/buildsteplist.h>
 #include <projectexplorer/kit.h>
 #include <projectexplorer/projectexplorer.h>
@@ -73,6 +74,14 @@ using namespace QmakeProjectManager::Internal;
 
 namespace QmakeProjectManager {
 
+QmakeExtraBuildInfo::QmakeExtraBuildInfo()
+{
+    const BuildPropertiesSettings &settings = ProjectExplorerPlugin::buildPropertiesSettings();
+    config.separateDebugInfo = settings.separateDebugInfo;
+    config.linkQmlDebuggingQQ2 = settings.qmlDebugging;
+    config.useQtQuickCompiler = settings.qtQuickCompiler;
+}
+
 // --------------------------------------------------------------------
 // Helpers:
 // --------------------------------------------------------------------
@@ -717,17 +726,21 @@ BuildInfo QmakeBuildConfigurationFactory::createBuildInfo(const Kit *k,
                                                           const FilePath &projectPath,
                                                           BuildConfiguration::BuildType type) const
 {
+    const BuildPropertiesSettings &settings = ProjectExplorerPlugin::buildPropertiesSettings();
     BaseQtVersion *version = QtKitAspect::qtVersion(k);
     QmakeExtraBuildInfo extraInfo;
     BuildInfo info(this);
     QString suffix;
+
     if (type == BuildConfiguration::Release) {
         //: The name of the release build configuration created by default for a qmake project.
         info.displayName = tr("Release");
         //: Non-ASCII characters in directory suffix may cause build issues.
         suffix = tr("Release", "Shadow build directory suffix");
+        if (settings.qtQuickCompiler == TriState::Default) {
             if (version && version->isQtQuickCompilerSupported())
                 extraInfo.config.useQtQuickCompiler = TriState::Enabled;
+        }
     } else {
         if (type == BuildConfiguration::Debug) {
             //: The name of the debug build configuration created by default for a qmake project.
@@ -739,13 +752,19 @@ BuildInfo QmakeBuildConfigurationFactory::createBuildInfo(const Kit *k,
             info.displayName = tr("Profile");
             //: Non-ASCII characters in directory suffix may cause build issues.
             suffix = tr("Profile", "Shadow build directory suffix");
+            if (settings.separateDebugInfo == TriState::Default)
                 extraInfo.config.separateDebugInfo = TriState::Enabled;
+
+            if (settings.qtQuickCompiler == TriState::Default) {
                 if (version && version->isQtQuickCompilerSupported())
                     extraInfo.config.useQtQuickCompiler = TriState::Enabled;
             }
+        }
+        if (settings.qmlDebugging == TriState::Default) {
             if (version && version->isQmlDebuggingSupported())
                 extraInfo.config.linkQmlDebuggingQQ2 = TriState::Enabled;
         }
+    }
     info.typeName = info.displayName;
     // Leave info.buildDirectory unset;
     info.kitId = k->id();

src/plugins/qmakeprojectmanager/qmakebuildinfo.h

@@ -32,6 +32,8 @@ namespace QmakeProjectManager {
 class QmakeExtraBuildInfo final
 {
 public:
+    QmakeExtraBuildInfo();
+
     QString additionalArguments;
     QString makefile;
     QMakeStepConfig config;