cpp_feature_detection(THREADS) lack of pthread lib

[KAlO2]

Now GCC supports all the c++11 features, but when I use cmake on Ubuntu, I always get this message "Detecting support for c++ feature 'THREADS': false", and I see it try_compile the file oglplus/config/cpp/has_THREADS.cpp

when I use command gcc has_THREADS.cpp -Wall -lstdc++ -std=c++11 -pthread, it's OK.
So I guess try_compile command is missing pthread lib, and finally it works. (What about Windows platform?)

try_compile(
OGLPLUS_HAS_${FEATURE_NAME}
${PROJECT_BINARY_DIR}/cpp
${PROJECT_BINARY_DIR}/cpp/has_${FEATURE_NAME}.cpp
COMPILE_DEFINITIONS ${OGLPLUS_CPP_STD_COMPILER_SWITCH}
LINK_LIBRARIES pthread
)

[matus-chochlik]

I pushed some changes on develop. Could You test if that fixes the problem for you?

[KAlO2]

NO, it fails again.

-- Detecting support for c++ feature 'SCOPED_ENUMS': TRUE
-- Detecting support for c++ feature 'SCOPED_ENUM_TEMPLATE_PARAMS': TRUE
-- Detecting support for c++ feature 'VARIADIC_MACROS': TRUE
-- Detecting support for c++ feature 'VARIADIC_TEMPLATES': TRUE
-- Detecting support for c++ feature 'UNIFIED_INITIALIZATION_SYNTAX': TRUE
-- Detecting support for c++ feature 'INITIALIZER_LISTS': TRUE
-- Detecting support for c++ feature 'DEFAULTED_FUNCTIONS': TRUE
-- Detecting support for c++ feature 'DELETED_FUNCTIONS': TRUE
-- Detecting support for c++ feature 'EXPLICIT_CONVERSION_OPERATORS': TRUE
-- Detecting support for c++ feature 'FUNCTION_TEMPLATE_DEFAULT_ARGS': TRUE
-- Detecting support for c++ feature 'UNICODE_LITERALS': TRUE
-- Detecting support for c++ feature 'USER_DEFINED_LITERALS': TRUE
-- Detecting support for c++ feature 'INHERITED_CONSTRUCTORS': TRUE
-- Detecting support for c++ feature 'GENERALIZED_ATTRIBUTES': TRUE
-- Detecting support for c++ feature 'TEMPLATE_ALIASES': TRUE
-- Detecting support for c++ feature 'CONSTEXPR': TRUE
-- Detecting support for c++ feature 'NOEXCEPT': TRUE
-- Detecting support for c++ feature 'OVERRIDE': TRUE
-- Detecting support for c++ feature 'LAMBDAS': TRUE
-- Detecting support for c++ feature 'CHRONO': TRUE
-- Detecting support for c++ feature 'THREADS': FALSE
-- Could NOT find Boost
-- Skipping 'glx_main' because 'THREADS' not implemented properly.