modernc.org/ccgo/v3@v3.16.14/lib/testdata/gcc-9.1.0/gcc/testsuite/gcc.c-torture/execute/ieee/920810-1.x (about)

     1  if { [check_effective_target_newlib_nano_io] } {
     2      lappend additional_flags "-Wl,-u,_printf_float"
     3  }
     4  return 0