diff --git a/src/plugins/android/androidtoolchain.cpp b/src/plugins/android/androidtoolchain.cpp
index fa31889f83b..f89b6330715 100644
--- a/src/plugins/android/androidtoolchain.cpp
+++ b/src/plugins/android/androidtoolchain.cpp
@@ -263,6 +263,11 @@ AndroidToolChainFactory::AndroidToolChainFactory()
     setDisplayName(tr("Android GCC"));
 }
 
+QSet<ToolChain::Language> Android::Internal::AndroidToolChainFactory::supportedLanguages() const
+{
+    return { ToolChain::Language::Cxx };
+}
+
 QList<ToolChain *> AndroidToolChainFactory::autoDetect(const QList<ToolChain *> &alreadyKnown)
 {
     return autodetectToolChainsForNdk(AndroidConfigurations::currentConfig().ndkLocation(), alreadyKnown);
diff --git a/src/plugins/android/androidtoolchain.h b/src/plugins/android/androidtoolchain.h
index 3de6a12eaa9..5fd58532f2e 100644
--- a/src/plugins/android/androidtoolchain.h
+++ b/src/plugins/android/androidtoolchain.h
@@ -95,6 +95,7 @@ class AndroidToolChainFactory : public ProjectExplorer::ToolChainFactory
 
 public:
     AndroidToolChainFactory();
+    QSet<ProjectExplorer::ToolChain::Language> supportedLanguages() const override;
 
     QList<ProjectExplorer::ToolChain *> autoDetect(const QList<ProjectExplorer::ToolChain *> &alreadyKnown) override;
     bool canRestore(const QVariantMap &data) override;
diff --git a/src/plugins/ios/iosconfigurations.cpp b/src/plugins/ios/iosconfigurations.cpp
index 4e414e01e88..c212b3a0f66 100644
--- a/src/plugins/ios/iosconfigurations.cpp
+++ b/src/plugins/ios/iosconfigurations.cpp
@@ -363,6 +363,11 @@ static ClangToolChain *createToolChain(const Platform &platform)
     return toolChain;
 }
 
+QSet<ToolChain::Language> IosToolChainFactory::supportedLanguages() const
+{
+    return { ProjectExplorer::ToolChain::Language::Cxx };
+}
+
 QList<ToolChain *> IosToolChainFactory::autoDetect(const QList<ToolChain *> &existingToolChains)
 {
     QList<ClangToolChain *> existingClangToolChains = clangToolChains(existingToolChains);
diff --git a/src/plugins/ios/iosconfigurations.h b/src/plugins/ios/iosconfigurations.h
index 843608146ec..7e917e82c84 100644
--- a/src/plugins/ios/iosconfigurations.h
+++ b/src/plugins/ios/iosconfigurations.h
@@ -45,6 +45,7 @@ class IosToolChainFactory : public ProjectExplorer::ToolChainFactory
     Q_OBJECT
 
 public:
+    QSet<ProjectExplorer::ToolChain::Language> supportedLanguages() const override;
     QList<ProjectExplorer::ToolChain *> autoDetect(const QList<ProjectExplorer::ToolChain *> &existingToolChains) override;
 };
 
diff --git a/src/plugins/projectexplorer/customtoolchain.cpp b/src/plugins/projectexplorer/customtoolchain.cpp
index c715e8d6efb..7aafa808d5e 100644
--- a/src/plugins/projectexplorer/customtoolchain.cpp
+++ b/src/plugins/projectexplorer/customtoolchain.cpp
@@ -432,6 +432,11 @@ CustomToolChainFactory::CustomToolChainFactory()
     setDisplayName(tr("Custom"));
 }
 
+QSet<ToolChain::Language> CustomToolChainFactory::supportedLanguages() const
+{
+    return { ToolChain::Language::Cxx };
+}
+
 bool CustomToolChainFactory::canCreate()
 {
     return true;
diff --git a/src/plugins/projectexplorer/customtoolchain.h b/src/plugins/projectexplorer/customtoolchain.h
index c0d1cd76352..e4ef3a80066 100644
--- a/src/plugins/projectexplorer/customtoolchain.h
+++ b/src/plugins/projectexplorer/customtoolchain.h
@@ -147,6 +147,7 @@ class CustomToolChainFactory : public ToolChainFactory
 
 public:
     CustomToolChainFactory();
+    QSet<ToolChain::Language> supportedLanguages() const override;
 
     bool canCreate() override;
     ToolChain *create() override;
diff --git a/src/plugins/projectexplorer/gcctoolchain.cpp b/src/plugins/projectexplorer/gcctoolchain.cpp
index 346af7aba30..c089e9e54dc 100644
--- a/src/plugins/projectexplorer/gcctoolchain.cpp
+++ b/src/plugins/projectexplorer/gcctoolchain.cpp
@@ -769,6 +769,11 @@ GccToolChainFactory::GccToolChainFactory()
     setDisplayName(tr("GCC"));
 }
 
+QSet<ToolChain::Language> GccToolChainFactory::supportedLanguages() const
+{
+    return { ToolChain::Language::Cxx };
+}
+
 bool GccToolChainFactory::canCreate()
 {
     return true;
@@ -1134,6 +1139,11 @@ ClangToolChainFactory::ClangToolChainFactory()
     setDisplayName(tr("Clang"));
 }
 
+QSet<ToolChain::Language> ClangToolChainFactory::supportedLanguages() const
+{
+    return { ProjectExplorer::ToolChain::Language::Cxx };
+}
+
 QList<ToolChain *> ClangToolChainFactory::autoDetect(const QList<ToolChain *> &alreadyKnown)
 {
     return autoDetectToolchains(QLatin1String("clang++"), Abi::hostAbi(),
@@ -1213,6 +1223,11 @@ MingwToolChainFactory::MingwToolChainFactory()
     setDisplayName(tr("MinGW"));
 }
 
+QSet<ToolChain::Language> MingwToolChainFactory::supportedLanguages() const
+{
+    return { ProjectExplorer::ToolChain::Language::Cxx };
+}
+
 QList<ToolChain *> MingwToolChainFactory::autoDetect(const QList<ToolChain *> &alreadyKnown)
 {
     Abi ha = Abi::hostAbi();
@@ -1291,6 +1306,11 @@ LinuxIccToolChainFactory::LinuxIccToolChainFactory()
     setDisplayName(tr("Linux ICC"));
 }
 
+QSet<ToolChain::Language> LinuxIccToolChainFactory::supportedLanguages() const
+{
+    return { ProjectExplorer::ToolChain::Language::Cxx };
+}
+
 QList<ToolChain *> LinuxIccToolChainFactory::autoDetect(const QList<ToolChain *> &alreadyKnown)
 {
     return autoDetectToolchains(QLatin1String("icpc"), Abi::hostAbi(),
diff --git a/src/plugins/projectexplorer/gcctoolchainfactories.h b/src/plugins/projectexplorer/gcctoolchainfactories.h
index cdebccc27fd..c8e984a5136 100644
--- a/src/plugins/projectexplorer/gcctoolchainfactories.h
+++ b/src/plugins/projectexplorer/gcctoolchainfactories.h
@@ -49,6 +49,7 @@ class GccToolChainFactory : public ToolChainFactory
 
 public:
     GccToolChainFactory();
+    QSet<ToolChain::Language> supportedLanguages() const override;
 
     QList<ToolChain *> autoDetect(const QList<ToolChain *> &alreadyKnown) override;
 
@@ -108,6 +109,7 @@ class ClangToolChainFactory : public GccToolChainFactory
 
 public:
     ClangToolChainFactory();
+    QSet<ToolChain::Language> supportedLanguages() const override;
 
     QList<ToolChain *> autoDetect(const QList<ToolChain *> &alreadyKnown) override;
 
@@ -127,6 +129,7 @@ class MingwToolChainFactory : public GccToolChainFactory
 
 public:
     MingwToolChainFactory();
+    QSet<ToolChain::Language> supportedLanguages() const override;
 
     QList<ToolChain *> autoDetect(const QList<ToolChain *> &alreadyKnown) override;
 
@@ -146,6 +149,7 @@ class LinuxIccToolChainFactory : public GccToolChainFactory
 
 public:
     LinuxIccToolChainFactory();
+    QSet<ToolChain::Language> supportedLanguages() const override;
 
     QList<ToolChain *> autoDetect(const QList<ToolChain *> &alreadyKnown) override;
 
diff --git a/src/plugins/projectexplorer/msvctoolchain.cpp b/src/plugins/projectexplorer/msvctoolchain.cpp
index 85918eec5d9..c7e9e00988f 100644
--- a/src/plugins/projectexplorer/msvctoolchain.cpp
+++ b/src/plugins/projectexplorer/msvctoolchain.cpp
@@ -572,6 +572,11 @@ MsvcToolChainFactory::MsvcToolChainFactory()
     setDisplayName(tr("MSVC"));
 }
 
+QSet<ToolChain::Language> MsvcToolChainFactory::supportedLanguages() const
+{
+    return { ProjectExplorer::ToolChain::Language::Cxx };
+}
+
 bool MsvcToolChainFactory::checkForVisualStudioInstallation(const QString &vsName)
 {
     const QSettings vsRegistry(
diff --git a/src/plugins/projectexplorer/msvctoolchain.h b/src/plugins/projectexplorer/msvctoolchain.h
index 20e67e6b746..8f8ead3546d 100644
--- a/src/plugins/projectexplorer/msvctoolchain.h
+++ b/src/plugins/projectexplorer/msvctoolchain.h
@@ -125,6 +125,7 @@ class MsvcToolChainFactory : public ToolChainFactory
 
 public:
     MsvcToolChainFactory();
+    QSet<ToolChain::Language> supportedLanguages() const override;
 
     QList<ToolChain *> autoDetect(const QList<ToolChain *> &alreadyKnown) override;
 
diff --git a/src/plugins/projectexplorer/toolchain.h b/src/plugins/projectexplorer/toolchain.h
index 146bc088b49..00dd9c250e4 100644
--- a/src/plugins/projectexplorer/toolchain.h
+++ b/src/plugins/projectexplorer/toolchain.h
@@ -175,6 +175,8 @@ public:
     static Core::Id typeIdFromMap(const QVariantMap &data);
     static void autoDetectionToMap(QVariantMap &data, bool detected);
 
+    virtual QSet<ToolChain::Language> supportedLanguages() const = 0;
+
 protected:
     void setDisplayName(const QString &name) { m_displayName = name; }
 
diff --git a/src/plugins/projectexplorer/wincetoolchain.cpp b/src/plugins/projectexplorer/wincetoolchain.cpp
index 741d5985ae8..1535a7a33af 100644
--- a/src/plugins/projectexplorer/wincetoolchain.cpp
+++ b/src/plugins/projectexplorer/wincetoolchain.cpp
@@ -348,6 +348,11 @@ WinCEToolChainFactory::WinCEToolChainFactory()
     setDisplayName(tr("WinCE"));
 }
 
+QSet<ToolChain::Language> WinCEToolChainFactory::supportedLanguages() const
+{
+    return { ProjectExplorer::ToolChain::Language::Cxx };
+}
+
 static ToolChain *findOrCreateToolChain(const QList<ToolChain *> &alreadyKnown,
                                         const QString &name, const Abi &abi,
                                         const QString &vcvarsBat, const QString &msvcVer,
diff --git a/src/plugins/projectexplorer/wincetoolchain.h b/src/plugins/projectexplorer/wincetoolchain.h
index 918d9f02867..6eb0adde279 100644
--- a/src/plugins/projectexplorer/wincetoolchain.h
+++ b/src/plugins/projectexplorer/wincetoolchain.h
@@ -106,6 +106,7 @@ class WinCEToolChainFactory : public ToolChainFactory
 
 public:
     WinCEToolChainFactory();
+    QSet<ToolChain::Language> supportedLanguages() const override;
 
     QList<ToolChain *> autoDetect(const QList<ToolChain *> &alreadyKnown) override;
 
diff --git a/src/plugins/qnx/qnxtoolchain.cpp b/src/plugins/qnx/qnxtoolchain.cpp
index c186e96bb8d..20af5355fd1 100644
--- a/src/plugins/qnx/qnxtoolchain.cpp
+++ b/src/plugins/qnx/qnxtoolchain.cpp
@@ -160,6 +160,11 @@ QnxToolChainFactory::QnxToolChainFactory()
     setDisplayName(tr("QCC"));
 }
 
+QSet<ToolChain::Language> QnxToolChainFactory::supportedLanguages() const
+{
+    return { ProjectExplorer::ToolChain::Language::Cxx };
+}
+
 bool QnxToolChainFactory::canRestore(const QVariantMap &data)
 {
     return typeIdFromMap(data) == Constants::QNX_TOOLCHAIN_ID;
diff --git a/src/plugins/qnx/qnxtoolchain.h b/src/plugins/qnx/qnxtoolchain.h
index 551c9c90682..b55d2f358d4 100644
--- a/src/plugins/qnx/qnxtoolchain.h
+++ b/src/plugins/qnx/qnxtoolchain.h
@@ -69,6 +69,7 @@ class QnxToolChainFactory : public ProjectExplorer::ToolChainFactory
 
 public:
     QnxToolChainFactory();
+    QSet<ProjectExplorer::ToolChain::Language> supportedLanguages() const override;
 
     bool canRestore(const QVariantMap &data) override;
     ProjectExplorer::ToolChain *restore(const QVariantMap &data) override;