if (CMAKE_EXECUTABLE_FORMAT STREQUAL "ELF")
add_subdirectory (thirdparty/libbacktrace)
include_directories (${CMAKE_CURRENT_SOURCE_DIR}/thirdparty/libbacktrace)
if (CMAKE_EXECUTABLE_FORMAT STREQUAL "ELF")
add_subdirectory (thirdparty/libbacktrace)
include_directories (${CMAKE_CURRENT_SOURCE_DIR}/thirdparty/libbacktrace)