From: Jochen Sprickerhof Date: Mon, 31 Jan 2022 08:50:31 +0100 Subject: Don't for old C++ standards on new compilers Newer compilers use newer standards by default. --- CMakeLists.txt | 4 +--- 1 file changed, 1 insertion(+), 3 deletions(-) diff --git a/CMakeLists.txt b/CMakeLists.txt index 652f24b..365d616 100644 --- a/CMakeLists.txt +++ b/CMakeLists.txt @@ -2,7 +2,7 @@ cmake_minimum_required(VERSION 2.8.3) project(opencv_apps) ## https://stackoverflow.com/questions/10984442/how-to-detect-c11-support-of-a-compiler-with-cmake -if(CMAKE_COMPILER_IS_GNUCXX) +if(CMAKE_COMPILER_IS_GNUCXX AND CMAKE_CXX_COMPILER_VERSION VERSION_LESS "7") execute_process(COMMAND ${CMAKE_C_COMPILER} -dumpversion OUTPUT_VARIABLE GCC_VERSION) if (GCC_VERSION VERSION_GREATER 4.7 OR GCC_VERSION VERSION_EQUAL 4.7) message(STATUS "C++11 activated.") @@ -13,8 +13,6 @@ if(CMAKE_COMPILER_IS_GNUCXX) else () message(FATAL_ERROR "C++11 needed. Therefore a gcc compiler with a version higher than 4.3 is needed.") endif() -else(CMAKE_COMPILER_IS_GNUCXX) - add_definitions("-std=c++0x") endif(CMAKE_COMPILER_IS_GNUCXX) find_package(catkin REQUIRED COMPONENTS cv_bridge dynamic_reconfigure message_generation image_transport nodelet roscpp sensor_msgs std_msgs std_srvs)