Make dynamic loading example work on OSX.

jll63 · Aug 11, 2016 · 6e02e37 · 6e02e37
1 parent 2e15957
commit 6e02e37
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Showing 2 changed files with 12 additions and 2 deletions.
diff --git a/examples/CMakeLists.txt b/examples/CMakeLists.txt
@@ -20,7 +20,11 @@ add_executable(matrix matrix.cpp)
 target_link_libraries (matrix yomm11)
 
 if(NOT MSVC)
-  add_library( dl_shared SHARED dl_shared.cpp )
   add_executable(dl_main dl_main.cpp)
+  add_library( dl_shared SHARED dl_shared.cpp )
+  if(APPLE)
+    set_target_properties(dl_main PROPERTIES LINK_FLAGS "-Wl,-export_dynamic")
+    set_target_properties(dl_shared PROPERTIES LINK_FLAGS "-Wl,-undefined,dynamic_lookup")
+  endif()
   target_link_libraries (dl_main yomm11 dl dl_shared)
 endif()
diff --git a/examples/dl_main.cpp b/examples/dl_main.cpp
@@ -36,7 +36,13 @@ int main() {
   cout << "encounter(Cow(), Wolf()) -> " << encounter(Cow(), Wolf()) << endl;
   cout << "encounter(Wolf(), Cow()) -> " << encounter(Wolf(), Cow()) << endl;
 
-  void* handle = dlopen("./libdl_shared.so", RTLD_NOW);
+  void* handle = dlopen(
+#ifdef __APPLE__
+      "./libdl_shared.dylib"
+#else
+      "./libdl_shared.so"
+#endif
+      , RTLD_NOW);
 
   if (!handle) {
     cout << "dlopen() failed: " << dlerror() << "\n";