1 files changed, 7 insertions, 0 deletions
diff --git a/tests/auto/blackbox/tst_blackbox.cpp b/tests/auto/blackbox/tst_blackbox.cpp
index 26f29ed0e..7d743c584 100644
--- a/tests/auto/blackbox/tst_blackbox.cpp
+++ b/tests/auto/blackbox/tst_blackbox.cpp
@@ -8526,6 +8526,13 @@ void TestBlackbox::grpc()
 
     rmDirR(relativeBuildDir());
     QbsRunParameters resolveParams("resolve", QStringList{"-f", projectFile});
+    if (QTest::currentDataTag() == QLatin1String("cpp")) {
+        if (const QString extraLibs = qEnvironmentVariable("QBS_EXTRA_GRPC_LIBS");
+                !extraLibs.isEmpty()) {
+            resolveParams.arguments << (QLatin1String("modules.protobuf.cpp._extraGrpcLibs:")
+                                        + extraLibs);
+        }
+    }
     resolveParams.arguments << arguments;
     QCOMPARE(runQbs(resolveParams), 0);
     const bool withGrpc = m_qbsStdout.contains("has grpc: true");