set (DEFAULT_LIBS "-nodefaultlibs")

if (NOT COMPILER_CLANG)
    message (FATAL_ERROR "FreeBSD build is supported only for Clang")
endif ()

if (${CMAKE_SYSTEM_PROCESSOR} STREQUAL "amd64")
    execute_process (COMMAND ${CMAKE_CXX_COMPILER} --print-file-name=libclang_rt.builtins-x86_64.a OUTPUT_VARIABLE BUILTINS_LIBRARY OUTPUT_STRIP_TRAILING_WHITESPACE)
else ()
    execute_process (COMMAND ${CMAKE_CXX_COMPILER} --print-file-name=libclang_rt.builtins-${CMAKE_SYSTEM_PROCESSOR}.a OUTPUT_VARIABLE BUILTINS_LIBRARY OUTPUT_STRIP_TRAILING_WHITESPACE)
endif ()

set (DEFAULT_LIBS "${DEFAULT_LIBS} ${BUILTINS_LIBRARY} ${COVERAGE_OPTION} -lc -lm -lrt -lpthread")

message(STATUS "Default libraries: ${DEFAULT_LIBS}")

set(CMAKE_CXX_STANDARD_LIBRARIES ${DEFAULT_LIBS})
set(CMAKE_C_STANDARD_LIBRARIES ${DEFAULT_LIBS})

# Global libraries

add_library(global-libs INTERFACE)

# Unfortunately '-pthread' doesn't work with '-nodefaultlibs'.
# Just make sure we have pthreads at all.
set(THREADS_PREFER_PTHREAD_FLAG ON)
find_package(Threads REQUIRED)

include (cmake/find/unwind.cmake)
include (cmake/find/cxx.cmake)

add_library(global-group INTERFACE)

target_link_libraries(global-group INTERFACE
    $<TARGET_PROPERTY:global-libs,INTERFACE_LINK_LIBRARIES>
)

link_libraries(global-group)

# FIXME: remove when all contribs will get custom cmake lists
install(
    TARGETS global-group global-libs
    EXPORT global
)