Add lto/ipo to cmake build

oyvindln · oyvindln · commit 1ba1dca77a43 · 2024-09-07T18:39:53.000+02:00
diff --git a/CMakeLists.txt b/CMakeLists.txt
@@ -5,6 +5,14 @@ project(ld-decode-tools)
 list(APPEND CMAKE_MODULE_PATH "${CMAKE_CURRENT_LIST_DIR}/cmake_modules")
 include(CTest)
 
+include(CheckIPOSupported)
+check_ipo_supported(RESULT is_ipo_supported OUTPUT lto_error)
+if(is_ipo_supported)
+  set(CMAKE_INTERPROCEDURAL_OPTIMIZATION_RELEASE ON)
+  set(CMAKE_INTERPROCEDURAL_OPTIMIZATION_RELWITHDEBINFO ON)
+  set(CMAKE_INTERPROCEDURAL_OPTIMIZATION_MINSIZEREL ON)
+endif()
+
 set(CMAKE_CXX_EXTENSIONS OFF)
 set(CMAKE_CXX_STANDARD 17)
 set(CMAKE_CXX_STANDARD_REQUIRED ON)
