Good catch on adding the Workflow.

Author: Kraust

modules/openapi-generator/src/main/resources/cpp-oatpp-server/cmake.mustache

@@ -2,7 +2,7 @@ cmake_minimum_required (VERSION 3.2)
 
 project(api-server)
 
-set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -std=c++11 -pg -g3" )
+set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -std=c++17 -pg -g3" )
 
 {{#addExternalLibs}}
 include(ExternalProject)