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Leave CMAKE_CXX_FLAGS alone

This commit is contained in:
Carles Fernandez 2019-02-24 14:11:21 +01:00
parent a97aca58f2
commit 88195f40b8
No known key found for this signature in database
GPG Key ID: 4C583C52B0C3877D
1 changed files with 35 additions and 32 deletions
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67
CMakeLists.txt
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@ -420,23 +420,23 @@ if(NOT (CMAKE_VERSION VERSION_LESS "3.1"))
else()
if((CMAKE_CXX_COMPILER_ID STREQUAL "GNU") AND NOT WIN32)
if(CMAKE_CXX_COMPILER_VERSION VERSION_LESS "6.1.1")
set(MY_CXX_FLAGS "${MY_CXX_FLAGS} -std=c++11")
add_compile_options(-std=c++11)
else()
set(MY_CXX_FLAGS "${MY_CXX_FLAGS} -std=c++14")
add_compile_options(-std=c++14)
endif()
endif()
if(CMAKE_CXX_COMPILER_ID MATCHES "Clang")
if(OS_IS_MACOSX)
if(CLANG_VERSION VERSION_LESS "600")
set(MY_CXX_FLAGS "${MY_CXX_FLAGS} -std=c++11")
add_compile_options(-std=c++11)
else()
set(MY_CXX_FLAGS "${MY_CXX_FLAGS} -std=c++14")
add_compile_options(-std=c++14)
endif()
else()
if(CMAKE_CXX_COMPILER_VERSION VERSION_LESS "3.5.0")
set(MY_CXX_FLAGS "${MY_CXX_FLAGS} -std=c++11")
add_compile_options(-std=c++11)
else()
set(MY_CXX_FLAGS "${MY_CXX_FLAGS} -std=c++14")
add_compile_options(-std=c++14)
endif()
endif()
endif()
@ -1834,10 +1834,10 @@ if(ENABLE_GPERFTOOLS)
# See https://github.com/gperftools/gperftools/blob/master/README
if(GPERFTOOLS_FOUND)
if((CMAKE_CXX_COMPILER_ID STREQUAL "GNU") AND NOT WIN32)
set(MY_CXX_FLAGS "${MY_CXX_FLAGS} -fno-builtin-malloc -fno-builtin-calloc -fno-builtin-realloc -fno-builtin-free")
add_compile_options(-fno-builtin-malloc -fno-builtin-calloc -fno-builtin-realloc -fno-builtin-free)
endif()
if(CMAKE_CXX_COMPILER_ID MATCHES "Clang")
set(MY_CXX_FLAGS "${MY_CXX_FLAGS} -fno-builtin")
add_compile_options(-fno-builtin)
endif()
endif()
endif()
@ -1848,7 +1848,7 @@ endif()
# GNU gprof (OPTIONAL) - https://sourceware.org/binutils/docs/gprof/
########################################################################
if(ENABLE_GPROF)
set(MY_CXX_FLAGS "${MY_CXX_FLAGS} -pg")
add_compile_options(-pg)
set(CMAKE_EXE_LINKER_FLAGS "${CMAKE_EXE_LINKER_FLAGS} -pg")
set(CMAKE_SHARED_LINKER_FLAGS "${CMAKE_SHARED_LINKER_FLAGS} -pg")
endif()
@ -1858,35 +1858,38 @@ endif()
# Set compiler flags
########################################################################
if((CMAKE_CXX_COMPILER_ID STREQUAL "GNU") AND NOT WIN32)
set(MY_CXX_FLAGS "${MY_CXX_FLAGS} -Wall -Wextra") #Add warning flags: For "-Wall" see https://gcc.gnu.org/onlinedocs/gcc/Warning-Options.html
# Add warning flags
# For "-Wall" see https://gcc.gnu.org/onlinedocs/gcc/Warning-Options.html
add_compile_options(-Wall -Wextra)
if(CMAKE_CROSSCOMPILING)
add_compile_options(-Wno-psabi)
endif()
endif()
# Processor-architecture related flags
# See https://gcc.gnu.org/onlinedocs/gcc/x86-Options.html
if(NOT ARCH_COMPILER_FLAGS)
if((CMAKE_CXX_COMPILER_ID STREQUAL "GNU") AND NOT WIN32)
if(OS_IS_MACOSX)
set(ARCH_COMPILER_FLAGS "-march=corei7 -mfpmath=sse")
else()
if(NOT ${ENABLE_GENERIC_ARCH})
if(IS_ARM) # ARM-specific options (https://gcc.gnu.org/onlinedocs/gcc/ARM-Options.html)
if(NOT CMAKE_CROSSCOMPILING)
if(ARM_VERSION STREQUAL "arm")
# Unknown arm version - try our best to detect
set(ARCH_COMPILER_FLAGS "-mcpu=native")
else()
set(ARCH_COMPILER_FLAGS "-march=${ARM_VERSION}")
endif()
endif()
else()
set(ARCH_COMPILER_FLAGS "-march=native -mfpmath=sse")
endif()
endif()
endif()
if((CMAKE_CXX_COMPILER_ID STREQUAL "GNU") AND NOT WIN32)
if(OS_IS_MACOSX)
add_compile_options(-march=corei7 -mfpmath=sse)
else()
if(NOT ENABLE_GENERIC_ARCH)
if(IS_ARM)
# ARM-specific options
# See https://gcc.gnu.org/onlinedocs/gcc/ARM-Options.html
if(NOT CMAKE_CROSSCOMPILING)
if(ARM_VERSION STREQUAL "arm")
# Unknown arm version - try our best to detect
add_compile_options(-mcpu=native)
else()
add_compile_options(-march=${ARM_VERSION})
endif()
endif()
else()
add_compile_options(-march=native -mfpmath=sse)
endif()
endif()
endif()
endif()
set(MY_CXX_FLAGS "${MY_CXX_FLAGS} ${ARCH_COMPILER_FLAGS}")
set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} ${MY_CXX_FLAGS}")