- print "A suitable C++ compiler could not be detected on your system!\n";
- print "Set the CXX environment variable to the compiler binary path if this is incorrect.\n";
- exit 1;
+ say 'A suitable C++ compiler could not be detected on your system!';
+ unless ($interactive) {
+ say 'Set the CXX environment variable to the path to a C++ compiler binary if this is incorrect.';
+ exit 1;
+ }
+ until ($config{CXX}) {
+ my $compiler_path = prompt_string 1, 'Please enter the path to a C++ compiler binary:', 'c++';
+ $config{CXX} = find_compiler $compiler_path;
+ }