Scm_SyntaxClass  2403 src/gauche.h   SCM_CLASS_DECL(Scm_SyntaxClass);
Scm_SyntaxClass  2404 src/gauche.h   #define SCM_CLASS_SYNTAX            (&Scm_SyntaxClass)
Scm_SyntaxClass    59 src/macro.c    SCM_DEFINE_BUILTIN_CLASS_SIMPLE(Scm_SyntaxClass, syntax_print);