WebAssembly: Add registered MinGW path to toolchain environment

The build system of Qt for WebAssembly on Windows requires MinGW in the
path. If a MinGW toolchain is registeded (e.g. via Sdk installer),
append it to the path.

Change-Id: I5c33cb5c4df636be99f815e307806efc07e18a11
Reviewed-by: hjk <hjk@qt.io>

1 files changed, 20 insertions, 1 deletions

diff --git a/src/plugins/webassembly/webassemblytoolchain.cpp b/src/plugins/webassembly/webassemblytoolchain.cpp
index ec4726aa6f..73c407c361 100644
--- a/src/plugins/webassembly/webassemblytoolchain.cpp
+++ b/src/plugins/webassembly/webassemblytoolchain.cpp
@@ -91,7 +91,7 @@ static ProjectExplorer::Abi toolChainAbi()
     };
 }
 
-void WebAssemblyToolChain::addToEnvironment(Utils::Environment &env) const
+static void addEmscriptenToEnvironment(Utils::Environment &env)
 {
     const CompilerConfiguration configuration = compilerConfiguration();
 
@@ -113,6 +113,25 @@ void WebAssemblyToolChain::addToEnvironment(Utils::Environment &env) const
     env.set("EMSCRIPTEN", configuration.emScripten.toUserOutput());
 }
 
+static void addRegisteredMinGWToEnvironment(Utils::Environment &env)
+{
+    using namespace ProjectExplorer;
+    const ToolChain *toolChain = ToolChainManager::toolChain([](const ToolChain *t){
+        return t->typeId() == ProjectExplorer::Constants::MINGW_TOOLCHAIN_TYPEID;
+    });
+    if (toolChain) {
+        const QString mingwPath = toolChain->compilerCommand().parentDir().toUserOutput();
+        env.appendOrSetPath(mingwPath);
+    }
+}
+
+void WebAssemblyToolChain::addToEnvironment(Utils::Environment &env) const
+{
+    addEmscriptenToEnvironment(env);
+    if (Utils::HostOsInfo::isWindowsHost())
+        addRegisteredMinGWToEnvironment(env);
+}
+
 WebAssemblyToolChain::WebAssemblyToolChain() :
     ClangToolChain(Constants::WEBASSEMBLY_TOOLCHAIN_TYPEID)
 {