#include <gflags/gflags.h>
DEFINE_string(message, "", "The message to print");
void print_message(); // in gflags_declare_flags.cc
int main(int argc, char **argv)
{
gflags::SetUsageMessage("Test compilation and use of gflags_declare.h");
gflags::ParseCommandLineFlags(&argc, &argv, true);
print_message();
return 0;
}