cmake_minimum_required(VERSION 3.8...3.25)
project(fmt-link CXX)
set(BUILD_SHARED_LIBS OFF)
set(CMAKE_VISIBILITY_INLINES_HIDDEN TRUE)
set(CMAKE_CXX_VISIBILITY_PRESET "hidden")
# Broken LTO on GCC 4
if (CMAKE_COMPILER_IS_GNUCXX AND CMAKE_CXX_COMPILER_VERSION VERSION_LESS 5)
set(BROKEN_LTO ON)
endif ()
if (NOT BROKEN_LTO AND CMAKE_VERSION VERSION_GREATER "3.8")
# CMake 3.9+
include(CheckIPOSupported)
check_ipo_supported(RESULT HAVE_IPO)
if (HAVE_IPO)
set(CMAKE_INTERPROCEDURAL_OPTIMIZATION TRUE)
add_subdirectory(../.. fmt)
set_property(TARGET fmt PROPERTY POSITION_INDEPENDENT_CODE ON)
add_library(library-test SHARED library.cc)
target_link_libraries(library-test PRIVATE fmt::fmt)
add_executable(exe-test main.cc)
target_link_libraries(exe-test PRIVATE library-test)