🚀 go-pugleaf

I've noticed that gcc (2.4.5) does not print _all_ the macros that are
defined with the -dM option.  For example __STDC__ is defined but not
printed.

I tracked this down to the code in initialize_builtins(), which
installs many macro definitions with types=T_TIME,T_DATE,T_CONST, etc.
dump_all_macros() on the other hand only prints out macro
definitions whose type==T_MACRO.

So does anyone know why this behavior was chosen? Was there some
compelling reason or was it just a mistake?  It seems to me that the
-dM option should print _all_ macro definitions, and not skip some as
it done now.
-Ram

janis:ram {20} cat foo.c

#ifdef __STDC__
#define __stdc_caused_this 1
#endif

#ifdef ____NetBSD____
#define ____netbsd_caused_this 1
#endif

main(){
int j;
j=0;
if( ____netbsd_caused_this)
  j=1;
if( __stdc_caused_this)
  j++;
printf("%d\n",j);
}
janis:ram {29} gcc -E -dM foo.c
#define ____NetBSD____ 1 
#define __i386__ 1 
#define __NetBSD__ 1 
#define __i386 1 
#define __386BSD__ 1 
#define ____386BSD____ 1 
#define __BSD_NET2 1 
#define __stdc_caused_this 1 
#define i386 1 
#define BSD_NET2 1 
#define __unix 1 
#define __BSD_NET2__ 1 
#define __unix__ 1 
#define __GNUC__ 2 
#define ____netbsd_caused_this 1 
#define unix 1 
--
--------------
Ram Bhamidipaty                     use this ->ram@epidat.epi.wisc.edu
Department of Preventive Medicine   or this->ram%epidat.decnet@macc.wisc.edu
University of Wisconsin, Madison    or this->ram@xor.epi.wisc.edu