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Add TELEGRAM_BOT_API_ENABLE_LTO build option.

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This commit is contained in:
levlam 2021-09-10 17:38:27 +03:00
parent 0e1862d26d
commit 05ebe83f2f
1 changed files with 18 additions and 0 deletions
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18
CMakeLists.txt
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@ -8,6 +8,11 @@ endif()
project(TelegramBotApi VERSION 5.3.2 LANGUAGES CXX)
if (POLICY CMP0069)
option(TELEGRAM_BOT_API_ENABLE_LTO "Use \"ON\" to enable Link Time Optimization.")
set(TD_ENABLE_LTO "${TELEGRAM_BOT_API_ENABLE_LTO}" CACHE STRING "Enable LTO" FORCE)
endif()
add_subdirectory(td EXCLUDE_FROM_ALL)
if (NOT DEFINED CMAKE_MODULE_PATH)
@ -35,6 +40,19 @@ endif()
include(PreventInSourceBuild)
prevent_in_source_build()
if (POLICY CMP0069 AND TELEGRAM_BOT_API_ENABLE_LTO)
cmake_policy(SET CMP0069 NEW)
include(CheckIPOSupported)
check_ipo_supported(RESULT IPO_SUPPORTED LANGUAGES CXX)
if (IPO_SUPPORTED)
string(REPLACE ";" " " CXX_FLAGS_IPO "${CMAKE_CXX_COMPILE_OPTIONS_IPO}")
set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} ${CXX_FLAGS_IPO}")
string(REPLACE ";" " " LINK_FLAGS_IPO "${CMAKE_CXX_LINK_OPTIONS_IPO}")
set(CMAKE_EXE_LINKER_FLAGS "${CMAKE_EXE_LINKER_FLAGS} ${LINK_FLAGS_IPO}")
endif()
endif()
set(CMAKE_THREAD_PREFER_PTHREAD ON)
set(THREADS_PREFER_PTHREAD_FLAG ON)
find_package(Threads REQUIRED)