3 files changed, 17 insertions, 2 deletions
diff --git a/Tests/Module/CheckIPOSupported-C/CMakeLists.txt b/Tests/Module/CheckIPOSupported-C/CMakeLists.txt
index 4a41a98..c5cd03e 100644
--- a/Tests/Module/CheckIPOSupported-C/CMakeLists.txt
+++ b/Tests/Module/CheckIPOSupported-C/CMakeLists.txt
@@ -13,8 +13,18 @@ elseif(CMake_TEST_IPO_WORKS_C)
 endif()
 
 add_library(foo foo.c)
+if(NOT CYGWIN AND (NOT WIN32 OR "x${CMAKE_C_COMPILER_ID}" STREQUAL "xClang"))
+  add_library(bar SHARED bar.c)
+  if(WIN32)
+    # Bindexplib for clang supports LTO objects
+    set_target_properties(bar PROPERTIES WINDOWS_EXPORT_ALL_SYMBOLS ON)
+  endif()
+else()
+  # TODO: bindexplib doesn't support exporting IPO symbols with other compilers on Windows
+  add_library(bar STATIC bar.c)
+endif()
 add_executable(CheckIPOSupported-C main.c)
-target_link_libraries(CheckIPOSupported-C PUBLIC foo)
+target_link_libraries(CheckIPOSupported-C PUBLIC foo bar)
 
 enable_testing()
 add_test(NAME CheckIPOSupported-C COMMAND CheckIPOSupported-C)
diff --git a/Tests/Module/CheckIPOSupported-C/bar.c b/Tests/Module/CheckIPOSupported-C/bar.c
new file mode 100644
index 0000000..680f213
--- /dev/null
+++ b/Tests/Module/CheckIPOSupported-C/bar.c
@@ -0,0 +1,4 @@
+int bar()
+{
+  return 0x42;
+}
diff --git a/Tests/Module/CheckIPOSupported-C/main.c b/Tests/Module/CheckIPOSupported-C/main.c
index 99204ab..28ab26f 100644
--- a/Tests/Module/CheckIPOSupported-C/main.c
+++ b/Tests/Module/CheckIPOSupported-C/main.c
@@ -1,8 +1,9 @@
 int foo();
+int bar();
 
 int main()
 {
-  if (foo() == 0) {
+  if (foo() != bar()) {
     return 1;
   }
   return 0;