--- CMakeLists.txt.orig	2018-06-21 16:27:49 UTC
+++ CMakeLists.txt
@@ -215,7 +215,7 @@ if (NOT DEFINED CMAKE_MACOSX_RPATH)
   set(CMAKE_MACOSX_RPATH 0)
 endif()
 
-if (${CMAKE_SYSTEM_NAME} MATCHES "Linux")
+if (${CMAKE_SYSTEM_NAME} MATCHES "Linux|.*BSD|DragonFly")
   # The following options is needed to generate a shared library
   set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -fPIC")
 endif()
@@ -304,13 +304,7 @@ else()
 endif()
 
 # DL
-if (EMSCRIPTEN)
-    # no dlopen
-elseif((${CYGWIN} EQUAL "1") OR (${CMAKE_SYSTEM_NAME} MATCHES "Windows"))
-  # TODO(Jared): config dlopen windows support
-else()
-  set(EXTRA_LIBS ${EXTRA_LIBS} dl)
-endif()
+set(EXTRA_LIBS ${EXTRA_LIBS} ${CMAKE_DL_LIBS})
 
 # TRACK_MEMORY_USAGE
 if(TRACK_MEMORY_USAGE)