--- CMakeLists.txt.orig	2021-10-18 02:36:25 UTC
+++ CMakeLists.txt
@@ -191,7 +191,7 @@ endif()
 # Check for library directory suffixes
 set(_LIBDIR_SUFFIX "")
 get_property(USING_LIB64 GLOBAL PROPERTY FIND_LIBRARY_USE_LIB64_PATHS)
-if (USING_LIB64 AND NOT "${CMAKE_SYSTEM_NAME}" STREQUAL "Darwin")
+if (USING_LIB64 AND NOT "${CMAKE_SYSTEM_NAME}" STREQUAL "Darwin" AND NOT "${CMAKE_SYSTEM_NAME}" STREQUAL "FreeBSD")
   set(_LIBDIR_SUFFIX "64")
 endif()
 set(LIBDIR_SUFFIX "${_LIBDIR_SUFFIX}"
@@ -251,7 +251,7 @@ add_library(oclgrind ${CORE_LIB_TYPE}
   src/plugins/Uninitialized.cpp)
 target_link_libraries(oclgrind
   PRIVATE ${CORE_EXTRA_LIBS} ${CLANG_LIBS}
-  PUBLIC ${LLVM_LIBS})
+  PUBLIC ${LLVM_LIBS} pthread)
 
 if ("${CMAKE_SYSTEM_NAME}" STREQUAL "Windows")
   target_link_libraries(oclgrind PRIVATE Version)