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#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_NAMESPACE::SetUsageMessage("Test compilation and use of gflags_declare.h");
GFLAGS_NAMESPACE::ParseCommandLineFlags(&argc, &argv, true);
print_message();
return 0;
}