Fix failure of unittests/ExecutionEngine/JIT/MultiJITTest.cpp on

cygwin when built with ENABLE_SHARED=1.  Patch by NAKAMURA Takumi!

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@111231 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/lib/System/DynamicLibrary.cpp b/lib/System/DynamicLibrary.cpp
index 6f6890c06c4997b287963ff9e334935ac65f076f..660db492d6b9a6fb35aab4402fc0bc5b40ac7c36 100644 (file)
--- a/lib/System/DynamicLibrary.cpp
+++ b/lib/System/DynamicLibrary.cpp
@@ -70,6 +70,12 @@ bool DynamicLibrary::LoadLibraryPermanently(const char *Filename,
     if (ErrMsg) *ErrMsg = dlerror();
     return true;
   }
+#ifdef __CYGWIN__
+  // Cygwin searches symbols only in the main
+  // with the handle of dlopen(NULL, RTLD_GLOBAL).
+  if (Filename == NULL)
+    H = RTLD_DEFAULT;
+#endif
   if (OpenedHandles == 0)
     OpenedHandles = new std::vector<void *>();
   OpenedHandles->push_back(H);