From bb54d821d2575dc8026961407c6436c5fdf9fdef Mon Sep 17 00:00:00 2001
From: Denis Shienkov <denis.shienkov@gmail.com>
Date: Thu, 9 May 2019 22:13:27 +0300
Subject: [PATCH] bare-metal: Don't create C++ toolchain for auto-detected KEIL
 C51 compiler

... because this compiler support only the C language.

Change-Id: Id6da8da01eb8feff75acf29174fba4de10e0d3a0
Reviewed-by: hjk <hjk@qt.io>
---
 src/plugins/baremetal/keiltoolchain.cpp | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/src/plugins/baremetal/keiltoolchain.cpp b/src/plugins/baremetal/keiltoolchain.cpp
index 984fb3341ea..6b978e8f6d0 100644
--- a/src/plugins/baremetal/keiltoolchain.cpp
+++ b/src/plugins/baremetal/keiltoolchain.cpp
@@ -512,7 +512,14 @@ QList<ToolChain *> KeilToolchainFactory::autoDetectToolchain(
     const Macros macros = dumpPredefinedMacros(candidate.compilerPath, env.toStringList());
     if (macros.isEmpty())
         return {};
+
     const Abi abi = guessAbi(macros);
+    const Abi::Architecture arch = abi.architecture();
+    if (arch == Abi::Architecture::Mcs51Architecture
+            && language == ProjectExplorer::Constants::CXX_LANGUAGE_ID) {
+        // KEIL C51 compiler does not support C++ language.
+        return {};
+    }
 
     const auto tc = new KeilToolchain(ToolChain::AutoDetection);
     tc->setLanguage(language);