| Macros by Category | Revision History | 
   AC_CXX_BOOL
  
If the compiler recognizes bool as a separate built-in type, define HAVE_BOOL. Note that a typedef is not a separate type since you cannot overload a function such that it accepts either the basic type or the typedef.
http://autoconf-archive.cryp.to/ac_cxx_bool.m4
    Copyright © 2008 Todd Veldhuizen
    Copyright © 2008 Luc Maisonobe <luc@spaceroots.org>
   
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