4 files changed, 25 insertions, 8 deletions

diff --git a/qmake/generators/win32/msvc_objectmodel.cpp b/qmake/generators/win32/msvc_objectmodel.cpp
index 45f23e52bd..b6fe683d2c 100644
--- a/qmake/generators/win32/msvc_objectmodel.cpp
+++ b/qmake/generators/win32/msvc_objectmodel.cpp
@@ -1991,6 +1991,7 @@ bool VCMIDLTool::parseOption(const char* option)
         break;
     case 0x5eb7af2: // /header filename
         offset = 5;
+        Q_FALLTHROUGH();
     case 0x0000358: // /h filename
         HeaderFileName = option + offset + 3;
         break;
diff --git a/qmake/generators/win32/msvc_vcproj.cpp b/qmake/generators/win32/msvc_vcproj.cpp
index fd53ec2a6e..b6f7f20564 100644
--- a/qmake/generators/win32/msvc_vcproj.cpp
+++ b/qmake/generators/win32/msvc_vcproj.cpp
@@ -1521,6 +1521,18 @@ void VcprojGenerator::initDistributionFiles()
     vcProject.DistributionFiles.Config = &(vcProject.Configuration);
 }
 
+QString VcprojGenerator::extraCompilerName(const ProString &extraCompiler,
+                                             const QStringList &inputs,
+                                             const QStringList &outputs)
+{
+    QString name = project->values(ProKey(extraCompiler + ".name")).join(' ');
+    if (name.isEmpty())
+        name = extraCompiler.toQString();
+    else
+        name = replaceExtraCompilerVariables(name, inputs, outputs, NoShell);
+    return name;
+}
+
 void VcprojGenerator::initExtraCompilerOutputs()
 {
     ProStringList otherFilters;
@@ -1538,13 +1550,16 @@ void VcprojGenerator::initExtraCompilerOutputs()
                  << "YACCSOURCES";
     const ProStringList &quc = project->values("QMAKE_EXTRA_COMPILERS");
     for (ProStringList::ConstIterator it = quc.begin(); it != quc.end(); ++it) {
-        ProString extracompilerName = project->first(ProKey(*it + ".name"));
-        if (extracompilerName.isEmpty())
-            extracompilerName = (*it);
+        const ProStringList &inputVars = project->values(ProKey(*it + ".input"));
+        ProStringList inputFiles;
+        for (auto var : inputVars)
+            inputFiles.append(project->values(var.toKey()));
+        const ProStringList &outputs = project->values(ProKey(*it + ".output"));
 
         // Create an extra compiler filter and add the files
         VCFilter extraCompile;
-        extraCompile.Name = extracompilerName.toQString();
+        extraCompile.Name = extraCompilerName(it->toQString(), inputFiles.toQStringList(),
+                                              outputs.toQStringList());
         extraCompile.ParseFiles = _False;
         extraCompile.Filter = "";
         extraCompile.Guid = QString(_GUIDExtraCompilerFiles) + "-" + (*it);
@@ -1557,14 +1572,14 @@ void VcprojGenerator::initExtraCompilerOutputs()
             if (!outputVar.isEmpty() && otherFilters.contains(outputVar))
                 continue;
 
-            QString tmp_out = project->first(ProKey(*it + ".output")).toQString();
+            QString tmp_out = project->first(outputs.first().toKey()).toQString();
             if (project->values(ProKey(*it + ".CONFIG")).indexOf("combine") != -1) {
                 // Combined output, only one file result
                 extraCompile.addFile(Option::fixPathToTargetOS(
                         replaceExtraCompilerVariables(tmp_out, QString(), QString(), NoShell), false));
             } else {
                 // One output file per input
-                const ProStringList &tmp_in = project->values(project->first(ProKey(*it + ".input")).toKey());
+                const ProStringList &tmp_in = project->values(inputVars.first().toKey());
                 for (int i = 0; i < tmp_in.count(); ++i) {
                     const QString &filename = tmp_in.at(i).toQString();
                     if (extraCompilerSources.contains(filename) && !otherFiltersContain(filename))
@@ -1577,7 +1592,6 @@ void VcprojGenerator::initExtraCompilerOutputs()
             // build steps there. So, we turn it around and add it to the input files instead,
             // provided that the input file variable is not handled already (those in otherFilters
             // are handled, so we avoid them).
-            const ProStringList &inputVars = project->values(ProKey(*it + ".input"));
             for (const ProString &inputVar : inputVars) {
                 if (!otherFilters.contains(inputVar)) {
                     const ProStringList &tmp_in = project->values(inputVar.toKey());
diff --git a/qmake/generators/win32/msvc_vcproj.h b/qmake/generators/win32/msvc_vcproj.h
index 55d36c3762..8f38252274 100644
--- a/qmake/generators/win32/msvc_vcproj.h
+++ b/qmake/generators/win32/msvc_vcproj.h
@@ -74,6 +74,8 @@ protected:
     bool doDepends() const override { return false; } // Never necessary
     using Win32MakefileGenerator::replaceExtraCompilerVariables;
     QString replaceExtraCompilerVariables(const QString &, const QStringList &, const QStringList &, ReplaceFor) override;
+    QString extraCompilerName(const ProString &extraCompiler, const QStringList &inputs,
+                              const QStringList &outputs);
     bool supportsMetaBuild() override { return true; }
     bool supportsMergedBuilds() override { return true; }
     bool mergeBuildProject(MakefileGenerator *other) override;
diff --git a/qmake/generators/win32/winmakefile.cpp b/qmake/generators/win32/winmakefile.cpp
index 8e0c62e13f..b79fd8f250 100644
--- a/qmake/generators/win32/winmakefile.cpp
+++ b/qmake/generators/win32/winmakefile.cpp
@@ -645,7 +645,7 @@ void Win32MakefileGenerator::writeObjectsPart(QTextStream &t)
     t << "OBJECTS       = " << valList(escapeDependencyPaths(project->values("OBJECTS"))) << Qt::endl;
 }
 
-void Win32MakefileGenerator::writeImplicitRulesPart(QTextStream &t)
+void Win32MakefileGenerator::writeImplicitRulesPart(QTextStream &)
 {
 }