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Set -std=c++11, -std=c++14 or -std=c++17 where appropriate

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This commit is contained in:
Carles Fernandez
2018-04-07 17:03:25 +02:00
parent fc34bb4d98
commit 795ac97e12
2 changed files with 111 additions and 17 deletions
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86
src/algorithms/libs/volk_gnsssdr_module/volk_gnsssdr/CMakeLists.txt
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@@ -27,9 +27,91 @@ enable_language(CXX)
enable_language(C)
enable_testing()
set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -std=c++11 -Wall")
# Set compiler flags
set(GNSSSDR_CLANG_MIN_VERSION "3.4.0")
set(GNSSSDR_APPLECLANG_MIN_VERSION "500")
if(CMAKE_CXX_COMPILER_ID MATCHES "Clang")
execute_process(COMMAND
${CMAKE_CXX_COMPILER} -v
RESULT_VARIABLE _res ERROR_VARIABLE _err
ERROR_STRIP_TRAILING_WHITESPACE)
if(${_res} STREQUAL "0")
# output is in error stream
string(REGEX MATCH "^Apple.*" IS_APPLE ${_err})
if("${IS_APPLE}" STREQUAL "")
set(MIN_VERSION ${GNSSSDR_CLANG_MIN_VERSION})
set(APPLE_STR "")
# retrieve the compiler's version from it
string(REGEX MATCH "clang version [0-9.]+" CLANG_OTHER_VERSION ${_err})
string(REGEX MATCH "[0-9.]+" CLANG_VERSION ${CLANG_OTHER_VERSION})
else("${IS_APPLE}" STREQUAL "")
set(MIN_VERSION ${GNSSSDR_APPLECLANG_MIN_VERSION})
set(APPLE_STR "Apple ")
# retrieve the compiler's version from it
string(REGEX MATCH "(clang-[0-9.]+)" CLANG_APPLE_VERSION ${_err})
string(REGEX MATCH "[0-9.]+" CLANG_VERSION ${CLANG_APPLE_VERSION})
endif("${IS_APPLE}" STREQUAL "")
if(${CLANG_VERSION} VERSION_LESS "${MIN_VERSION}")
message(WARNING "\nThe compiler selected to build VOLK-GNSSSDR (${APPLE_STR}Clang version ${CLANG_VERSION} : ${CMAKE_CXX_COMPILER}) is older than that officially supported (${MIN_VERSION} minimum). This build may or not work. We highly recommend using Apple Clang version ${APPLECLANG_MIN_VERSION} or more recent, or Clang version ${CLANG_MIN_VERSION} or more recent.")
endif(${CLANG_VERSION} VERSION_LESS "${MIN_VERSION}")
else(${_res} STREQUAL "0")
message(WARNING "\nCannot determine the version of the compiler selected to build VOLK-GNSSSDR (${APPLE_STR}Clang : ${CMAKE_CXX_COMPILER}). This build may or not work. We highly recommend using Apple Clang version ${APPLECLANG_MIN_VERSION} or more recent, or Clang version ${CLANG_MIN_VERSION} or more recent.")
endif(${_res} STREQUAL "0")
endif(CMAKE_CXX_COMPILER_ID MATCHES "Clang")
# Enable C++17 support in GCC >= 8.0.0
# Enable C++14 support in 8.0.0 > GCC >= 6.1.1
# Fallback to C++11 when using GCC < 6.1.1
if(CMAKE_COMPILER_IS_GNUCXX AND NOT WIN32)
if(CMAKE_CXX_COMPILER_VERSION VERSION_LESS "6.1.1")
set(MY_CXX_FLAGS "${MY_CXX_FLAGS} -std=c++11")
else(CMAKE_CXX_COMPILER_VERSION VERSION_LESS "6.1.1")
if(CMAKE_CXX_COMPILER_VERSION VERSION_LESS "8.0.0")
set(MY_CXX_FLAGS "${MY_CXX_FLAGS} -std=c++14")
else(CMAKE_CXX_COMPILER_VERSION VERSION_LESS "8.0.0")
set(MY_CXX_FLAGS "${MY_CXX_FLAGS} -std=c++17")
endif(CMAKE_CXX_COMPILER_VERSION VERSION_LESS "8.0.0")
endif(CMAKE_CXX_COMPILER_VERSION VERSION_LESS "6.1.1")
set(MY_CXX_FLAGS "${MY_CXX_FLAGS} -Wall -Wextra") #Add warning flags: For "-Wall" see http://gcc.gnu.org/onlinedocs/gcc/Warning-Options.html
endif(CMAKE_COMPILER_IS_GNUCXX AND NOT WIN32)
# Enable C++17 support in Clang >= 6.0.0 or AppleClang >= 900
# Enable C++14 support in 6.0.0 > Clang >= 3.5.0 or 900 > AppleClang >= 600
# Fallback to C++11 if older version
if(CMAKE_CXX_COMPILER_ID MATCHES "Clang")
if(CMAKE_SYSTEM_NAME MATCHES "Darwin")
# See https://trac.macports.org/wiki/XcodeVersionInfo for Apple Clang version equivalences
if(CLANG_VERSION VERSION_LESS "600")
set(MY_CXX_FLAGS "${MY_CXX_FLAGS} -std=c++11")
else(CLANG_VERSION VERSION_LESS "600")
if(CLANG_VERSION VERSION_LESS "900")
set(MY_CXX_FLAGS "${MY_CXX_FLAGS} -std=c++14")
else(CLANG_VERSION VERSION_LESS "900")
set(MY_CXX_FLAGS "${MY_CXX_FLAGS} -std=c++17")
endif(CLANG_VERSION VERSION_LESS "900")
endif(CLANG_VERSION VERSION_LESS "600")
else(CMAKE_SYSTEM_NAME MATCHES "Darwin")
if(CMAKE_CXX_COMPILER_VERSION VERSION_LESS "3.5.0")
set(MY_CXX_FLAGS "${MY_CXX_FLAGS} -std=c++11")
else(CMAKE_CXX_COMPILER_VERSION VERSION_LESS "3.5.0")
if(CMAKE_CXX_COMPILER_VERSION VERSION_LESS "6.0.0")
set(MY_CXX_FLAGS "${MY_CXX_FLAGS} -std=c++14")
else(CMAKE_CXX_COMPILER_VERSION VERSION_LESS "6.0.0")
set(MY_CXX_FLAGS "${MY_CXX_FLAGS} -std=c++17")
endif(CMAKE_CXX_COMPILER_VERSION VERSION_LESS "6.0.0")
endif(CMAKE_CXX_COMPILER_VERSION VERSION_LESS "3.5.0")
endif(CMAKE_SYSTEM_NAME MATCHES "Darwin")
endif(CMAKE_CXX_COMPILER_ID MATCHES "Clang")
if(NOT (CMAKE_COMPILER_IS_GNUCXX AND NOT WIN32) AND NOT (CMAKE_CXX_COMPILER_ID MATCHES "Clang"))
if(NOT (CMAKE_VERSION VERSION_LESS "3.1"))
set(CMAKE_C_STANDARD 11)
set(CMAKE_CXX_STANDARD 11)
endif(NOT (CMAKE_VERSION VERSION_LESS "3.1"))
endif(NOT (CMAKE_COMPILER_IS_GNUCXX AND NOT WIN32) AND NOT (CMAKE_CXX_COMPILER_ID MATCHES "Clang"))
set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} ${MY_CXX_FLAGS} -Wall")
set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -Wall")
add_definitions(-D_GLIBCXX_USE_CXX11_ABI=1)
if(CMAKE_VERSION VERSION_GREATER "3.0")
cmake_policy(SET CMP0042 NEW)