find_package(Gint 2.1 REQUIRED)

execute_process(
  COMMAND ${CMAKE_C_COMPILER} -print-file-name=libustl.a
  OUTPUT_VARIABLE EX_PATH OUTPUT_STRIP_TRAILING_WHITESPACE)

if(NOT "${EX_PATH}" STREQUAL "libustl.a")
  execute_process(
    COMMAND ${CMAKE_C_COMPILER} -print-file-name=include/config.h
    OUTPUT_VARIABLE EX_CONFIG OUTPUT_STRIP_TRAILING_WHITESPACE)
  execute_process(
    COMMAND sed -E "s/#define.*EX_VERSION\\s+\"(\\S+)\"$/\\1/p; d" ${EX_CONFIG}
    OUTPUT_VARIABLE EX_VERSION OUTPUT_STRIP_TRAILING_WHITESPACE)
endif()

include(FindPackageHandleStandardArgs)

find_package_handle_standard_args(LibUstl
  REQUIRED_VARS EX_CONFIG EX_VERSION
  VERSION_VAR EX_VERSION)

if(LibUstl_FOUND)
  add_library(LibUstl::LibUstl UNKNOWN IMPORTED)
  set_target_properties(LibUstl::LibUstl PROPERTIES
    IMPORTED_LOCATION "${EX_PATH}"
    INTERFACE_COMPILE_OPTIONS -std=c++11 -fno-rtti -fno-use-cxa-atexit
    INTERFACE_LINK_OPTIONS -lustl
    IMPORTED_LINK_INTERFACE_LIBRARIES Gint::Gint)
endif()