Suppose you have a meson project like this: meson.build: project('example','cpp',version:'1.0',license:'…',default_options:['warning_level=everything','cpp_std=c++17'])subdir('example') example/meson.build: test_example=executable('example-test',['main.cc']) example/string.h: /* This file intentionally left empty */ example/main.cc: #include<cstring>intmain(intargc,constchar*argv[]){std::stringfoo("foo");return0;} This builds fine with autotools and cmake, but not meson: $mesonsetupbuilddir...