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build: Enable LTO (Link Time Optimization) #8654

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zhou13 2018-07-22 18:22:14 -07:00 committed by Justin M. Keyes
parent 2000b6a64a
commit c8e7a447c5
2 changed files with 20 additions and 0 deletions
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8
CMakeLists.txt
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@ -85,6 +85,14 @@ endif()
option(ENABLE_LIBINTL "enable libintl" ON)
option(ENABLE_LIBICONV "enable libiconv" ON)
if (MINGW)
# Disable LTO by default as it may not compile
# See https://github.com/Alexpux/MINGW-packages/issues/3516
# and https://github.com/neovim/neovim/pull/8654#issuecomment-402316672
option(ENABLE_LTO "enable link time optimization" OFF)
else()
option(ENABLE_LTO "enable link time optimization" ON)
endif()
# Set default build type.
if(NOT CMAKE_BUILD_TYPE)

12
src/nvim/CMakeLists.txt
View File

@ -399,6 +399,10 @@ if(JEMALLOC_FOUND)
list(APPEND NVIM_EXEC_LINK_LIBRARIES ${JEMALLOC_LIBRARIES})
endif()
if(POLICY CMP0069)
cmake_policy(SET CMP0069 NEW)
endif()
add_executable(nvim ${NVIM_GENERATED_FOR_SOURCES} ${NVIM_GENERATED_FOR_HEADERS}
${NVIM_GENERATED_SOURCES} ${NVIM_SOURCES} ${NVIM_HEADERS})
target_link_libraries(nvim ${NVIM_EXEC_LINK_LIBRARIES})
@ -407,6 +411,14 @@ install_helper(TARGETS nvim)
set_property(TARGET nvim APPEND PROPERTY
INCLUDE_DIRECTORIES ${LUA_PREFERRED_INCLUDE_DIRS})
if(ENABLE_LTO AND (POLICY CMP0069))
include(CheckIPOSupported)
check_ipo_supported(RESULT IPO_SUPPORTED)
if(IPO_SUPPORTED AND (NOT CMAKE_BUILD_TYPE MATCHES Debug))
set_property(TARGET nvim PROPERTY INTERPROCEDURAL_OPTIMIZATION TRUE)
endif()
endif()
if(WIN32)
# Copy DLLs and third-party tools to bin/ and install them along with nvim
add_custom_target(nvim_runtime_deps ALL