Re: AIX xlc gets confused by logic in stdio.h

[Ralf Wildenhues]

* Bruno Haible wrote on Sun, Jan 17, 2010 at 07:34:49PM CET:
> Ralf Wildenhues wrote:
> > I'm seeing this on AIX 5.3:
> > 
> >         /tmp/gl/build-aux/compile cc -qlanglvl=extc89 -qlanglvl=extc99  -g  
> >  -o test-select test-select.o ../gllib/libgnu.a   -lm  
> > ld: 0711-317 ERROR: Undefined symbol: .__printf__
> > ld: 0711-345 Use the -bloadmap or -bnoquiet option to obtain more 
> > information.
[...]
> 
> This is all as expected. Can you look with "nm" what symbols are defined by
> gllib/printf.o, and whether the need for the symbol comes from test-select.o
> or from libintl?

It comes from test-select.o:

$ nm -B ../gllib/printf.o
        44 t .bf
       116 t .ef
         0 T .printf
         - U .rpl_vfprintf
       152 d TOC
       160 d _$STATIC
       176 d _$STATIC
         - U _iob
       156 d _iob
       152 d printf
       164 D printf
$ nm -B test-select.o | grep print
         - U .__printf__

$  cc -qlanglvl=extc89 -qlanglvl=extc99 -DHAVE_CONFIG_H -I. -I../../gltests  
-I. -I../../gltests  -I.. -I../../gltests/..  -I../gllib 
-I../../gltests/../gllib  -D_THREAD_SAFE  -g ../../gltests/test-select.c -E
[...]
#line 128 "../gllib/stdio.h"
extern int dprintf (int fd, const char *format, ...)
        ;
#line 178
extern int _gl_warn_on_use;
#line 184
extern FILE * rpl_fopen (const char *filename, const char *mode)
     ;
#line 198
extern int rpl_fprintf (FILE *fp, const char *format, ...)
[...]
#line 501
extern int __printf__ (const char *format, ...)
        ;
[...]
#line 51 "../../gltests/test-select.c"
[...]
static void
failed (const char *reason)
{
  if (++failures > 1)
    __printf__ ("  ");
  __printf__ ("failed (%s)\n", reason);
}

Cheers,
Ralf