Fix c++17 flag

CMakeLists.txt

@@ -13,8 +13,8 @@ IF(NOT CMAKE_BUILD_TYPE)
         FORCE)
 ENDIF()
 
+set(CMAKE_CXX_STANDARD 17)
 set(CMAKE_CXX_STANDARD_REQUIRED ON)
-set(CXX_STANDARD 17)
 
 list(APPEND CMAKE_MODULE_PATH ${Simox_SOURCE_DIR}/CMakeModules)
 MESSAGE (STATUS "** Module path: "  ${CMAKE_MODULE_PATH})

CMakeModules/BulletCheckPrecision.cmake

@@ -7,7 +7,7 @@ macro(BulletCheckPrecision)
         CMAKE_FLAGS
             "-DINCLUDE_DIRECTORIES:string=${BULLET_INCLUDE_DIRS}"
             "-DLINK_LIBRARIES:string=${BULLET_LIBRARIES}"
-            "-DCMAKE_CXX_FLAGS:string=-std=c++11"
+            "-DCMAKE_CXX_FLAGS:string=-std=c++17"
         COMPILE_DEFINITIONS
             "-DBT_USE_DOUBLE_PRECISION"
         OUTPUT_VARIABLE _buildOutDouble
@@ -37,7 +37,7 @@ macro(BulletCheckPrecision)
             message(STATUS "    CMAKE_FLAGS")
             message(STATUS "        -DINCLUDE_DIRECTORIES:string=${BULLET_INCLUDE_DIRS}")
             message(STATUS "        -DLINK_LIBRARIES:string=${BULLET_LIBRARIES}")
-            message(STATUS "        -DCMAKE_CXX_FLAGS:string=-std=c++11")
+            message(STATUS "        -DCMAKE_CXX_FLAGS:string=-std=c++17")
             message(STATUS "    COMPILE_DEFINITIONS")
             message(STATUS "        -DBT_USE_DOUBLE_PRECISION")
             message(STATUS "Build output for double precision:")