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icinga2
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Clean up detection of the -flto flag 

refs #12564
This commit is contained in:
Gunnar Beutner 2016-08-27 21:42:05 +02:00
parent ed72112d4b
commit 4d503a3abb
1 changed files with 12 additions and 16 deletions
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28
CMakeLists.txt
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@ -180,11 +180,19 @@ if(CMAKE_C_COMPILER_ID STREQUAL "GNU")
endif()
endif()
include(CheckCXXCompilerFlag)
if(ICINGA2_LTO_BUILD)
set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -flto -fno-fat-lto-objects")
set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -flto -fno-fat-lto-objects")
set(CMAKE_EXE_LINKER_FLAGS "${CMAKE_EXE_LINKER_FLAGS} -flto")
set(CMAKE_SHARED_LINKER_FLAGS "${CMAKE_SHARED_LINKER_FLAGS} -flto")
check_cxx_compiler_flag("-flto" CXX_FLAG_LTO)
if(NOT CXX_FLAG_LTO)
message(WARNING "Compiler does not support LTO, falling back to non-LTO build")
else()
set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -flto")
set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -flto")
set(CMAKE_EXE_LINKER_FLAGS "${CMAKE_EXE_LINKER_FLAGS} -flto")
set(CMAKE_SHARED_LINKER_FLAGS "${CMAKE_SHARED_LINKER_FLAGS} -flto")
endif()
endif()
include(CheckCCompilerFlag)
@ -236,8 +244,6 @@ if(HAVE_LIBEXECINFO)
set(HAVE_BACKTRACE_SYMBOLS TRUE)
endif()
include(CheckCXXCompilerFlag)
if(CMAKE_CXX_COMPILER_ID STREQUAL "GNU")
exec_program(${CMAKE_CXX_COMPILER}
ARGS -dumpversion
@ -259,16 +265,6 @@ if(NOT MSVC)
endif()
endif()
check_cxx_compiler_flag("-flto" CXX_FLAG_LTO)
if(CXX_FLAG_LTO)
set(CMAKE_C_FLAGS_RELEASE "${CMAKE_C_FLAGS_DEBUG} -flto")
set(CMAKE_CXX_FLAGS_RELEASE "${CMAKE_CXX_FLAGS_DEBUG} -flto")
set(CMAKE_C_FLAGS_RELWITHDEBINFO "${CMAKE_C_FLAGS_DEBUG} -flto")
set(CMAKE_CXX_FLAGS_RELWITHDEBINFO "${CMAKE_CXX_FLAGS_DEBUG} -flto")
endif()
configure_file(config.h.cmake ${CMAKE_CURRENT_BINARY_DIR}/config.h ESCAPE_QUOTES)
install(