Pass PRIVATE to target_link_libraries if using shared libraries.

[oota-llvm.git] / CMakeLists.txt

diff --git a/CMakeLists.txt b/CMakeLists.txt
index b4eac034ae79d69b3561ab685569aaab15023184..f2b3d32614804741c3b761e9d1e931683c9595e4 100644 (file)
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -469,6 +469,16 @@ else(UNIX)
   endif(NOT DEFINED CMAKE_INSTALL_RPATH)
 endif()
 
+# Work around a broken bfd ld behavior. When linking a binary with a
+# foo.so library, it will try to find any library that foo.so uses and
+# check its symbols. This is wasteful (the check was done when foo.so
+# was created) and can fail since it is not the dynamic linker and
+# doesn't know how to handle search paths correctly.
+if (UNIX AND NOT APPLE)
+  set(CMAKE_EXE_LINKER_FLAGS
+      "${CMAKE_EXE_LINKER_FLAGS} -Wl,-allow-shlib-undefined")
+endif()
+
 set(CMAKE_INCLUDE_CURRENT_DIR ON)
 
 include_directories( ${LLVM_INCLUDE_DIR} ${LLVM_MAIN_INCLUDE_DIR})