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# - find where dlopen and friends are located.
# DL_FOUND - system has dynamic linking interface available
# DL_INCLUDE_DIR - where dlfcn.h is located.
# DL_LIBRARIES - libraries needed to use dlopen
include(CheckFunctionExists)
find_path(DL_INCLUDE_DIR NAMES dlfcn.h)
find_library(DL_LIBRARIES NAMES dl)
if(DL_LIBRARIES)
set(DL_FOUND)
else(DL_LIBRARIES)
check_function_exists(dlopen DL_FOUND)
# If dlopen can be found without linking in dl then dlopen is part
# of libc, so don't need to link extra libs.
set(DL_LIBRARIES "")
endif(DL_LIBRARIES)
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