Include `mruby.h` instead of `mrbconf.h` directly.
-#include <mrbconf.h>
-#ifndef MRB_NO_FLOAT
+#include <mruby.h>
+#if !defined(MRB_NO_FLOAT)
#if defined(MRB_NO_STDIO) || defined(_WIN32) || defined(_WIN64)
/*
@@ -35,7 +35,6 @@ SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
#include <float.h>
#include <ctype.h>
-#include <mruby.h>
#include <mruby/string.h>
struct fmt_args;
