From 05dc415aba16848157e028a467ccb46b6de54b46 Mon Sep 17 00:00:00 2001
From: Aleksei Potov <apotov@teslamotors.com>
Date: Wed, 22 Jun 2016 10:03:00 -0700
Subject: [PATCH] option to disable LTO

---
 CMakeLists.txt | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/CMakeLists.txt b/CMakeLists.txt
index bc5585205..fd9b471d1 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -53,6 +53,7 @@ option(BUILD_COMPONENTS "Build osrm-components" OFF)
 option(ENABLE_ASSERTIONS OFF)
 option(COVERAGE 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_SOURCE_DIR}/include/)
@@ -118,7 +119,7 @@ if(CMAKE_BUILD_TYPE MATCHES Release)
   message(STATUS "Configuring OSRM in release mode")
   # Check if LTO is available
   check_cxx_compiler_flag("-flto" LTO_AVAILABLE)
-  if(LTO_AVAILABLE)
+  if(ENABLE_LTO AND LTO_AVAILABLE)
     set(OLD_CXX_FLAGS ${CMAKE_CXX_FLAGS})
     # GCC in addition allows parallelizing LTO
     if("${CMAKE_CXX_COMPILER_ID}" STREQUAL "GNU")