5 files changed, 50 insertions, 0 deletions
diff --git a/mesonbuild/build.py b/mesonbuild/build.py
index 3ff68ed..aca592e 100644
--- a/mesonbuild/build.py
+++ b/mesonbuild/build.py
@@ -380,6 +380,7 @@ class BuildTarget(Target):
         self.process_compilers_late()
         self.validate_sources()
         self.validate_cross_install(environment)
+        self.check_module_linking()
 
     def __lt__(self, other):
         return self.get_id() < other.get_id()
@@ -1027,6 +1028,15 @@ You probably should put it in link_with instead.''')
     def is_linkable_target(self):
         return False
 
+    def check_module_linking(self):
+        '''
+        Warn if shared modules are linked with target: (link_with) #2865
+        '''
+        for link_target in self.link_targets:
+            if isinstance(link_target, SharedModule):
+                mlog.warning('''target links against shared modules. This is not
+recommended as it can lead to undefined behaviour on some platforms''')
+                return
 
 class Generator:
     def __init__(self, args, kwargs):
diff --git a/run_unittests.py b/run_unittests.py
index 96a98eb..9f0ae3f 100755
--- a/run_unittests.py
+++ b/run_unittests.py
@@ -1899,6 +1899,16 @@ int main(int argc, char **argv) {
                     exception_raised = True
         self.assertTrue(exception_raised, 'Double locking did not raise exception.')
 
+    def test_check_module_linking(self):
+        """
+        Test that shared modules are not linked with targets(link_with:) #2865
+        """
+        tdir = os.path.join(self.unit_test_dir, '26 shared_mod linking')
+        out = self.init(tdir)
+        msg = ('''WARNING: target links against shared modules. This is not
+recommended as it can lead to undefined behaviour on some platforms''')
+        self.assertIn(msg, out)
+
     def test_ndebug_if_release_disabled(self):
         testdir = os.path.join(self.unit_test_dir, '25 ndebug if-release')
         self.init(testdir, extra_args=['--buildtype=release', '-Db_ndebug=if-release'])
diff --git a/test cases/unit/26 shared_mod linking/libfile.c b/test cases/unit/26 shared_mod linking/libfile.c
new file mode 100644
index 0000000..44f7667
--- /dev/null
+++ b/test cases/unit/26 shared_mod linking/libfile.c
@@ -0,0 +1,14 @@
+#if defined _WIN32 || defined __CYGWIN__
+  #define DLL_PUBLIC __declspec(dllexport)
+#else
+  #if defined __GNUC__
+    #define DLL_PUBLIC __attribute__ ((visibility("default")))
+  #else
+    #pragma message ("Compiler does not support symbol visibility.")
+    #define DLL_PUBLIC
+  #endif
+#endif
+
+int DLL_PUBLIC func() {
+    return 0;
+}
diff --git a/test cases/unit/26 shared_mod linking/main.c b/test cases/unit/26 shared_mod linking/main.c
new file mode 100644
index 0000000..12f9c98
--- /dev/null
+++ b/test cases/unit/26 shared_mod linking/main.c
@@ -0,0 +1,11 @@
+#if defined _WIN32 || defined __CYGWIN__
+  #define DLL_IMPORT __declspec(dllimport)
+#else
+  #define DLL_IMPORT
+#endif
+
+int DLL_IMPORT func();
+
+int main(int argc, char **arg) {
+    return func();
+}
diff --git a/test cases/unit/26 shared_mod linking/meson.build b/test cases/unit/26 shared_mod linking/meson.build
new file mode 100644
index 0000000..994a5d3
--- /dev/null
+++ b/test cases/unit/26 shared_mod linking/meson.build
@@ -0,0 +1,5 @@
+project('shared library linking test', 'c', 'cpp')
+
+mod = shared_module('mymod', 'libfile.c')
+
+exe = executable('prog', 'main.c', link_with : mod, install : true)
+\ No newline at end of file