1 files changed, 24 insertions, 0 deletions
diff --git a/gcc/testsuite/g++.dg/ext/dllimport3.C b/gcc/testsuite/g++.dg/ext/dllimport3.C
new file mode 100644
index 000000000..6538232f7
--- /dev/null
+++ b/gcc/testsuite/g++.dg/ext/dllimport3.C
@@ -0,0 +1,24 @@
+// { dg-do compile { target i?86-*-cygwin* i?86-*-mingw* x86_64-*-mingw* } }
+
+// PR 10148  Dllimport attribute of object is overriden by later
+// redefinition without attribute.
+ 
+struct Foo
+{
+  int a;
+};
+
+ __attribute__((dllimport)) struct Foo f;
+
+void Bar(void)
+{
+  void* dummy  = (void*) &f;
+}
+
+struct Foo f;	// { dg-warning "referenced with dll linkage" }
+
+// Dllimport'd symbols do not have a constant address, so following
+// assignment would require static_initialization_and_destruction
+// if attribute is retained. 
+
+void* dummy = &f;