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option to disable LTO

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This commit is contained in:
Aleksei Potov 2016-06-22 10:03:00 -07:00
parent 256d39b572
commit 05dc415aba
1 changed files with 2 additions and 1 deletions
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3
CMakeLists.txt
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@ -53,6 +53,7 @@ option(BUILD_COMPONENTS "Build osrm-components" OFF)
option(ENABLE_ASSERTIONS OFF) option(ENABLE_ASSERTIONS OFF)
option(COVERAGE OFF) option(COVERAGE OFF)
option(SANITIZER OFF) option(SANITIZER OFF)
option(ENABLE_LTO "Use LTO if available" ON)
include_directories(BEFORE ${CMAKE_CURRENT_BINARY_DIR}/include/) include_directories(BEFORE ${CMAKE_CURRENT_BINARY_DIR}/include/)
include_directories(BEFORE ${CMAKE_CURRENT_SOURCE_DIR}/include/) include_directories(BEFORE ${CMAKE_CURRENT_SOURCE_DIR}/include/)
@ -118,7 +119,7 @@ if(CMAKE_BUILD_TYPE MATCHES Release)
message(STATUS "Configuring OSRM in release mode") message(STATUS "Configuring OSRM in release mode")
# Check if LTO is available # Check if LTO is available
check_cxx_compiler_flag("-flto" LTO_AVAILABLE) check_cxx_compiler_flag("-flto" LTO_AVAILABLE)
if(LTO_AVAILABLE) if(ENABLE_LTO AND LTO_AVAILABLE)
set(OLD_CXX_FLAGS ${CMAKE_CXX_FLAGS}) set(OLD_CXX_FLAGS ${CMAKE_CXX_FLAGS})
# GCC in addition allows parallelizing LTO # GCC in addition allows parallelizing LTO
if("${CMAKE_CXX_COMPILER_ID}" STREQUAL "GNU") if("${CMAKE_CXX_COMPILER_ID}" STREQUAL "GNU")