Reply To: Install issue olb-1.5r0
You should not need to change anything for tinyxml if the compiler setup is up to date. This is only a workaround on some configs where the environment supports C++17 to the degree that OpenLB (where we mostly use language features and not so much library features) compiles but the compiler used for tinyxml doesn’t support even C++11 (e.g. g++ resolved to old clang under Mac OS).
Did you try compiling OpenLB with an unchanged default config.mk and GCC version >= 9? If it fails: What is the specific error?