5 files changed, 54 insertions, 0 deletions
diff --git a/config.tests/static_link_order/CMakeLists.txt b/config.tests/static_link_order/CMakeLists.txt
new file mode 100644
index 0000000000..c174fb95db
--- /dev/null
+++ b/config.tests/static_link_order/CMakeLists.txt
@@ -0,0 +1,25 @@
+# Copyright (C) 2022 The Qt Company Ltd.
+# SPDX-License-Identifier: BSD-3-Clause
+
+# The test represents the order-related issue that we have with the ld linker.
+#
+# CMake versions < 3.21.0 produce the following linker line:
+# <binary_name> main.cpp -o static_link_order_test libstaticLib.a objlib.cpp.o
+# Since 'static_link_order_test' doesn't have direct use of 'staticlib2.cpp.o' symbols
+# the translation unit is not linked. When we link objlib.cpp.o it cannot resolve symbols from
+# staticlib2.cpp.o.
+#
+# For now it's only applicable for ld-like linkers. 'lld' has no such issue.
+cmake_minimum_required(VERSION 3.16)
+
+project(static_link_order_test LANGUAGES CXX)
+
+add_library(objLib OBJECT objlib.cpp)
+add_library(staticLib STATIC staticlib1.cpp staticlib2.cpp)
+
+target_link_libraries(staticLib
+    INTERFACE objLib "$<TARGET_OBJECTS:objLib>"
+)
+
+add_executable(static_link_order_test main.cpp)
+target_link_libraries(static_link_order_test PRIVATE staticLib)
diff --git a/config.tests/static_link_order/main.cpp b/config.tests/static_link_order/main.cpp
new file mode 100644
index 0000000000..93b8825fd9
--- /dev/null
+++ b/config.tests/static_link_order/main.cpp
@@ -0,0 +1,8 @@
+// Copyright (C) 2021 The Qt Company Ltd.
+// SPDX-License-Identifier: BSD-3-Clause
+
+void staticLibFunc1();
+
+int main() {
+    staticLibFunc1();
+}
diff --git a/config.tests/static_link_order/objlib.cpp b/config.tests/static_link_order/objlib.cpp
new file mode 100644
index 0000000000..0ad7b76a80
--- /dev/null
+++ b/config.tests/static_link_order/objlib.cpp
@@ -0,0 +1,8 @@
+// Copyright (C) 2021 The Qt Company Ltd.
+// SPDX-License-Identifier: BSD-3-Clause
+
+void staticLibFunc2();
+
+void objLibFunc() {
+    staticLibFunc2();
+}
diff --git a/config.tests/static_link_order/staticlib1.cpp b/config.tests/static_link_order/staticlib1.cpp
new file mode 100644
index 0000000000..f120f9229b
--- /dev/null
+++ b/config.tests/static_link_order/staticlib1.cpp
@@ -0,0 +1,8 @@
+// Copyright (C) 2021 The Qt Company Ltd.
+// SPDX-License-Identifier: BSD-3-Clause
+
+void objLibFunc();
+
+void staticLibFunc1() {
+    objLibFunc();
+}
diff --git a/config.tests/static_link_order/staticlib2.cpp b/config.tests/static_link_order/staticlib2.cpp
new file mode 100644
index 0000000000..a9abf424fe
--- /dev/null
+++ b/config.tests/static_link_order/staticlib2.cpp
@@ -0,0 +1,5 @@
+// Copyright (C) 2021 The Qt Company Ltd.
+// SPDX-License-Identifier: BSD-3-Clause
+
+void staticLibFunc2() {
+}