compiling c++17 based project under centOS
1
I've got project that should be compiled with c++17 under clean minimal centOS 7.6
For a start I updated the gnu compiler package from the default 4.8.5 to 7.4.0 and my cmake package to 3.12.2 which should have support for c++17 standard.
now I've got the following configuration :
[root@localhost Client]# gcc --version
gcc (GCC) 7.4.0
Copyright (C) 2017 Free Software Foundation, Inc.
This is free software; see the source for copying conditions. There is NO
warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
[root@localhost Client]# g++ --version
g++ (GCC) 7.4.0
Copyright (C) 2017 Free Software Foundation, Inc.
This is free software; see the source for copying conditions. There is NO
warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
[root@localhost Client]# cmake3 --version
cmake3 version 3.12.2
CMake suite maintained and supported by Kitware (kitware.com/cmake).
However, when I try to run cmake3 . on my project home dir, I get
Target "myproj" requires the language dialect "CXX17" (with compiler
extensions), but CMake does not know the compile flags to use to enable it.
Here's the CMakeLists.txt :
cmake_minimum_required(VERSION 3.0.0)
project(myproj VERSION 0.1.0)
set(PROJ_BASE ${CMAKE_CURRENT_SOURCE_DIR})
set(CMAKE_CXX_FLAGS "-fPIC")
set(CMAKE_POSITION_INDEPENDENT_CODE ON)
file(GLOB SOURCES "*.cpp")
add_library(myproj STATIC ${SOURCES})
set_target_properties(myproj PROPERTIES
CXX_STANDARD 17
CXX_STANDARD_REQUIRED ON
CXX_EXTENSIONS ON
)
set(CPACK_PROJECT_NAME ${PROJECT_NAME})
set(CPACK_PROJECT_VERSION ${PROJECT_VERSION})
Anything that I'm missing here ?
c++ gcc centos c++17
asked Jan 3 at 7:57
Zohar81Zohar81
2,2142833
|
show 5 more comments
1
I've got project that should be compiled with c++17 under clean minimal centOS 7.6
For a start I updated the gnu compiler package from the default 4.8.5 to 7.4.0 and my cmake package to 3.12.2 which should have support for c++17 standard.
now I've got the following configuration :
[root@localhost Client]# gcc --version
gcc (GCC) 7.4.0
Copyright (C) 2017 Free Software Foundation, Inc.
This is free software; see the source for copying conditions. There is NO
warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
[root@localhost Client]# g++ --version
g++ (GCC) 7.4.0
Copyright (C) 2017 Free Software Foundation, Inc.
This is free software; see the source for copying conditions. There is NO
warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
[root@localhost Client]# cmake3 --version
cmake3 version 3.12.2
CMake suite maintained and supported by Kitware (kitware.com/cmake).
However, when I try to run cmake3 . on my project home dir, I get
Target "myproj" requires the language dialect "CXX17" (with compiler
extensions), but CMake does not know the compile flags to use to enable it.
Here's the CMakeLists.txt :
cmake_minimum_required(VERSION 3.0.0)
project(myproj VERSION 0.1.0)
set(PROJ_BASE ${CMAKE_CURRENT_SOURCE_DIR})
set(CMAKE_CXX_FLAGS "-fPIC")
set(CMAKE_POSITION_INDEPENDENT_CODE ON)
file(GLOB SOURCES "*.cpp")
add_library(myproj STATIC ${SOURCES})
set_target_properties(myproj PROPERTIES
CXX_STANDARD 17
CXX_STANDARD_REQUIRED ON
CXX_EXTENSIONS ON
)
set(CPACK_PROJECT_NAME ${PROJECT_NAME})
set(CPACK_PROJECT_VERSION ${PROJECT_VERSION})
Anything that I'm missing here ?
c++ gcc centos c++17
asked Jan 3 at 7:57
Zohar81Zohar81
2,2142833
1
Are you running cmake on clean project? Maybe you have some stuff cached by cmake from before you've installed new gcc?
– VTT
Jan 3 at 8:05
Did you try to set the compiler withCXX=g++ CC=gcc cmake .?
– Thomas Sablik
Jan 3 at 8:05
CMake will create a couple of log-files containing information about what it tried and possible errors. You might want to look into those files to help you understand the problem.
– Some programmer dude
Jan 3 at 8:07
Did you update cmake-modules, too? If you forgot to update cmake-modules, cmake uses older compiler detection
– Thomas Sablik
Jan 3 at 8:08
1
Also please attempt to create a Minimal, Complete, and Verifiable example of yourCMakeLists.txtfile that you can show us. Especially tell us how you're setting the standard version.
– Some programmer dude
Jan 3 at 8:08
|
show 5 more comments
1
1
1
I've got project that should be compiled with c++17 under clean minimal centOS 7.6
For a start I updated the gnu compiler package from the default 4.8.5 to 7.4.0 and my cmake package to 3.12.2 which should have support for c++17 standard.
now I've got the following configuration :
[root@localhost Client]# gcc --version
gcc (GCC) 7.4.0
Copyright (C) 2017 Free Software Foundation, Inc.
This is free software; see the source for copying conditions. There is NO
warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
[root@localhost Client]# g++ --version
g++ (GCC) 7.4.0
Copyright (C) 2017 Free Software Foundation, Inc.
This is free software; see the source for copying conditions. There is NO
warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
[root@localhost Client]# cmake3 --version
cmake3 version 3.12.2
CMake suite maintained and supported by Kitware (kitware.com/cmake).
However, when I try to run cmake3 . on my project home dir, I get
Target "myproj" requires the language dialect "CXX17" (with compiler
extensions), but CMake does not know the compile flags to use to enable it.
Here's the CMakeLists.txt :
cmake_minimum_required(VERSION 3.0.0)
project(myproj VERSION 0.1.0)
set(PROJ_BASE ${CMAKE_CURRENT_SOURCE_DIR})
set(CMAKE_CXX_FLAGS "-fPIC")
set(CMAKE_POSITION_INDEPENDENT_CODE ON)
file(GLOB SOURCES "*.cpp")
add_library(myproj STATIC ${SOURCES})
set_target_properties(myproj PROPERTIES
CXX_STANDARD 17
CXX_STANDARD_REQUIRED ON
CXX_EXTENSIONS ON
)
set(CPACK_PROJECT_NAME ${PROJECT_NAME})
set(CPACK_PROJECT_VERSION ${PROJECT_VERSION})
Anything that I'm missing here ?
c++ gcc centos c++17
asked Jan 3 at 7:57
Zohar81Zohar81
2,2142833
I've got project that should be compiled with c++17 under clean minimal centOS 7.6
For a start I updated the gnu compiler package from the default 4.8.5 to 7.4.0 and my cmake package to 3.12.2 which should have support for c++17 standard.
now I've got the following configuration :
[root@localhost Client]# gcc --version
gcc (GCC) 7.4.0
Copyright (C) 2017 Free Software Foundation, Inc.
This is free software; see the source for copying conditions. There is NO
warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
[root@localhost Client]# g++ --version
g++ (GCC) 7.4.0
Copyright (C) 2017 Free Software Foundation, Inc.
This is free software; see the source for copying conditions. There is NO
warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
[root@localhost Client]# cmake3 --version
cmake3 version 3.12.2
CMake suite maintained and supported by Kitware (kitware.com/cmake).
However, when I try to run cmake3 . on my project home dir, I get
Target "myproj" requires the language dialect "CXX17" (with compiler
extensions), but CMake does not know the compile flags to use to enable it.
Here's the CMakeLists.txt :
cmake_minimum_required(VERSION 3.0.0)
project(myproj VERSION 0.1.0)
set(PROJ_BASE ${CMAKE_CURRENT_SOURCE_DIR})
set(CMAKE_CXX_FLAGS "-fPIC")
set(CMAKE_POSITION_INDEPENDENT_CODE ON)
file(GLOB SOURCES "*.cpp")
add_library(myproj STATIC ${SOURCES})
set_target_properties(myproj PROPERTIES
CXX_STANDARD 17
CXX_STANDARD_REQUIRED ON
CXX_EXTENSIONS ON
)
set(CPACK_PROJECT_NAME ${PROJECT_NAME})
set(CPACK_PROJECT_VERSION ${PROJECT_VERSION})
Anything that I'm missing here ?
c++ gcc centos c++17
c++ gcc centos c++17
asked Jan 3 at 7:57
Zohar81Zohar81
2,2142833
asked Jan 3 at 7:57
Zohar81Zohar81
2,2142833
edited Jan 3 at 8:10
Zohar81
asked Jan 3 at 7:57
Zohar81Zohar81
2,2142833
asked Jan 3 at 7:57
Zohar81Zohar81
2,2142833
asked Jan 3 at 7:57
Zohar81Zohar81
2,2142833
2,2142833
1
Are you running cmake on clean project? Maybe you have some stuff cached by cmake from before you've installed new gcc?
– VTT
Jan 3 at 8:05
Did you try to set the compiler withCXX=g++ CC=gcc cmake .?
– Thomas Sablik
Jan 3 at 8:05
CMake will create a couple of log-files containing information about what it tried and possible errors. You might want to look into those files to help you understand the problem.
– Some programmer dude
Jan 3 at 8:07
Did you update cmake-modules, too? If you forgot to update cmake-modules, cmake uses older compiler detection
– Thomas Sablik
Jan 3 at 8:08
1
Also please attempt to create a Minimal, Complete, and Verifiable example of yourCMakeLists.txtfile that you can show us. Especially tell us how you're setting the standard version.
– Some programmer dude
Jan 3 at 8:08
|
show 5 more comments
1
Are you running cmake on clean project? Maybe you have some stuff cached by cmake from before you've installed new gcc?
– VTT
Jan 3 at 8:05
Did you try to set the compiler withCXX=g++ CC=gcc cmake .?
– Thomas Sablik
Jan 3 at 8:05
CMake will create a couple of log-files containing information about what it tried and possible errors. You might want to look into those files to help you understand the problem.
– Some programmer dude
Jan 3 at 8:07
Did you update cmake-modules, too? If you forgot to update cmake-modules, cmake uses older compiler detection
– Thomas Sablik
Jan 3 at 8:08
1
Also please attempt to create a Minimal, Complete, and Verifiable example of yourCMakeLists.txtfile that you can show us. Especially tell us how you're setting the standard version.
– Some programmer dude
Jan 3 at 8:08
1
1
Are you running cmake on clean project? Maybe you have some stuff cached by cmake from before you've installed new gcc?
– VTT
Jan 3 at 8:05
Are you running cmake on clean project? Maybe you have some stuff cached by cmake from before you've installed new gcc?
– VTT
Jan 3 at 8:05
Did you try to set the compiler with
CXX=g++ CC=gcc cmake .?– Thomas Sablik
Jan 3 at 8:05
Did you try to set the compiler with
CXX=g++ CC=gcc cmake .?– Thomas Sablik
Jan 3 at 8:05
CMake will create a couple of log-files containing information about what it tried and possible errors. You might want to look into those files to help you understand the problem.
– Some programmer dude
Jan 3 at 8:07
CMake will create a couple of log-files containing information about what it tried and possible errors. You might want to look into those files to help you understand the problem.
– Some programmer dude
Jan 3 at 8:07
Did you update cmake-modules, too? If you forgot to update cmake-modules, cmake uses older compiler detection
– Thomas Sablik
Jan 3 at 8:08
Did you update cmake-modules, too? If you forgot to update cmake-modules, cmake uses older compiler detection
– Thomas Sablik
Jan 3 at 8:08
1
1
Also please attempt to create a Minimal, Complete, and Verifiable example of your
CMakeLists.txt file that you can show us. Especially tell us how you're setting the standard version.– Some programmer dude
Jan 3 at 8:08
Also please attempt to create a Minimal, Complete, and Verifiable example of your
CMakeLists.txt file that you can show us. Especially tell us how you're setting the standard version.– Some programmer dude
Jan 3 at 8:08
|
show 5 more comments
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1
Are you running cmake on clean project? Maybe you have some stuff cached by cmake from before you've installed new gcc?
– VTT
Jan 3 at 8:05
Did you try to set the compiler with
CXX=g++ CC=gcc cmake .?– Thomas Sablik
Jan 3 at 8:05
CMake will create a couple of log-files containing information about what it tried and possible errors. You might want to look into those files to help you understand the problem.
– Some programmer dude
Jan 3 at 8:07
Did you update cmake-modules, too? If you forgot to update cmake-modules, cmake uses older compiler detection
– Thomas Sablik
Jan 3 at 8:08
1
Also please attempt to create a Minimal, Complete, and Verifiable example of your
CMakeLists.txtfile that you can show us. Especially tell us how you're setting the standard version.– Some programmer dude
Jan 3 at 8:08