Re: m4-1.4.10 compile error: unsigned reference to decimal_point_char

Fri, 13 Jul 2007 14:28:24 -0700 

On Jul 13, 2007, at 12:22 PM, Clemens Koller wrote:

Hi, Gary!


Hi Clemens,


Thanks for the bug report.  I'm forwarding to the bug-m4 mailing list  
for

wider visibility.

This looks like a corner case for one of the files from gnulib that m4
imports during bootstrap:  I'm forwarding to the bug-gnulib mailing list
too, so the author of that code gets the report too.


m4-1.4.10 doesn't build anymore (1.4.9 built fine):


make[1]: Entering directory `/usr/ports/core/m4/work/src/m4-1.4.10/ 
src'
gcc -std=gnu99  -O2 -pipe   -o m4 m4.o builtin.o debug.o eval.o  
format.o freeze.o input.o macro.o output.o path.o symtab.o  
stackovf.o ../lib/libm4.a

../lib/libm4.a(vasnprintf.o): In function `vasnprintf':

vasnprintf.c:(.text+0x3690): undefined reference to  
`decimal_point_char'
vasnprintf.c:(.text+0x37d8): undefined reference to  
`decimal_point_char'
vasnprintf.c:(.text+0x3df0): undefined reference to  
`decimal_point_char'
vasnprintf.c:(.text+0x3e48): undefined reference to  
`decimal_point_char'
vasnprintf.c:(.text+0x3f0c): undefined reference to  
`decimal_point_char'
../lib/libm4.a(vasnprintf.o):vasnprintf.c:(.text+0x400c): more  
undefined references to `decimal_point_char' follow

collect2: ld returned 1 exit status
make[1]: *** [m4] Error 1
make[1]: Leaving directory `/usr/ports/core/m4/work/src/m4-1.4.10/src'
make: *** [all-recursive] Error 1


Perhaps the copying the vasnprintf.c from an m4-1.4.9 tarball will tide
you over until the problem is fixed in gnulib?


Problem seems to be burried in #ifdef hell:

#if NEED_PRINTF_DIRECTIVE_A && !defined IN_LIBINTL

/* Determine the decimal-point character according to the current  
locale.  */

# ifndef decimal_point_char_defined
#  define decimal_point_char_defined 1
static char
decimal_point_char ()
{
  const char *point;
  /* Determine it in a multithread-safe way.  We know nl_langinfo is

     multithread-safe on glibc systems, but is not required to be  
multithread-
     safe by POSIX.  sprintf(), however, is multithread-safe.   
localeconv()

     is rarely multithread-safe.  */
#  if HAVE_NL_LANGINFO && __GLIBC__
  point = nl_langinfo (RADIXCHAR);
#  elif 1
  char pointbuf[5];
  sprintf (pointbuf, "%#.0f", 1.0);
  point = &pointbuf[1];
#  else
  point = localeconv () -> decimal_point;
#  endif
  /* The decimal point is always a single byte: either '.' or ','.  */
  return (point[0] != '\0' ? point[0] : '.');
}
# endif
#endif


I am working on PowerPC architecture:
$ uname -a

Linux fox 2.6.22-rc6-gb75ae860 #5 Fri Jun 29 19:58:04 CEST 2007 ppc  
e500 GNU/Linux


$ gcc -v
Using built-in specs.
Target: powerpc-unknown-linux-gnu

Configured with: ../gcc-4.2.0/configure --prefix=/usr --libexecdir=/ 
usr/lib --enable-languages=c,c++,objc --enable-threads=posix -- 
enable-__cxa_atexit --enable-clocale=gnu --enable-shared --disable- 
nls --with-x=no --with-cpu=8540 --with-tune=8540 --with-float=soft  
--with-long-double-128 --disable-multilib

Thread model: posix
gcc version 4.2.0 (ckcore)

glibc-2.3.6 _without_ NLS

Please let me know if you need further information.
A patch would be fine. :-)


Best regards,
--
Clemens Koller
__________________________________
R&D Imaging Devices
Anagramm GmbH
Rupert-Mayer-Straße 45/1
Linhof Werksgelände
D-81379 München
Tel.089-741518-50
Fax 089-741518-19
http://www.anagramm-technology.com


Cheers,
        Gary
--
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