Very Computer

Rudi

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I've seen just a few references to this problem: when
compiling under using glibc2 (in my case 2.0.5, with
gcc 2.7.2.3) make fails with "undefined reference to
'stat'".  The glibc FAQ suggests this reflects a bad
or missing /usr/lib/libc.so script -- but I've checked
and mine is just as prescribed.  Any suggestions anyone?
TIA.

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Allin Cottrell
Department of Economics
Wake Forest University, NC

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 : I've seen just a few references to this problem: when
 : compiling under using glibc2 (in my case 2.0.5, with
 : gcc 2.7.2.3) make fails with "undefined reference to
 : 'stat'".  The glibc FAQ suggests this reflects a bad
 : or missing /usr/lib/libc.so script -- but I've checked
 : and mine is just as prescribed.  Any suggestions anyone?

 This really *should* be in the FAQ; it turns up frequently enough.

 The real 'stat' and 'lstat' are buried somewhere in the the
 *static* lib. So one of several things might be wrong here:

 1) You did something really smart, like removing libc.a to save
 space (or compressing it -- ld still won't find it). If so, restore it,
 and write "I will not remove essential system binaries" 100 times.

 2) You didn't compile with optimization. 'stat' and 'lstat' are inlined
 versions of other functions, and no inlining is done without optimization.
 Recompile with -O.

 3) You might also have to compile with -D_GNU_SOURCE or -D__USE_GNU. Check
 out /usr/include/sys/stat.h; I've had trouble of this sort, but can't
 quite remember what it was. If you're using glibc2, then you should make
 a habit of compiling with -D_GNU_SOURCE.  

 HTH,
 --Rich

--
###########################################################################
#
# IF YOU PUT ANYTHING HERE IT WILL GO AWAY
#

int (*xstat) ();
xstat = stat;

This prevwnts for example gnu findutils-4.1 from compiling.
Anyone now how to get around this?

//Marcus
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-------------------------------+-------------------------------------
        Marcus Sundberg        | WWW: http://www.e.kth.se/~e94_msu/
 Royal Institute of Technology |             E-Mail:

 : >
 : >  2) You didn't compile with optimization. 'stat' and 'lstat' are inlined
 : >  versions of other functions, and no inlining is done without optimization.
 : >  Recompile with -O.
 : >
 : >  3) You might also have to compile with -D_GNU_SOURCE or -D__USE_GNU. Check
 : >  out /usr/include/sys/stat.h; I've had trouble of this sort, but can't
 : >  quite remember what it was. If you're using glibc2, then you should make
 : >  a habit of compiling with -D_GNU_SOURCE.
 :
 : I have problems whith stat/lstat too (glibc 2.0.4, gcc 2.7.2.3).
 : Compiling with optimization fixes the problem when you are actually
 : calling stat() or lstat().
 : But even with -O2 -D_GNU_SOURCE -D__USE_GNU this will not work:
 :
 : int (*xstat) ();
 : xstat = stat;
 :

 Exactly what goes wrong here? I don't know what 2.0.4 does, but in 2.0.5
 'stat' is an inlined wrapper for a function called 'xstat'. Now since
 you have a function pointer of the same name here, maybe gcc is confuses...

 ---Rich

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###########################################################################
#
# IF YOU PUT ANYTHING HERE IT WILL GO AWAY
#

-- Uli

Ulrich Drepper  \    ,-------------------'   \  76149 Karlsruhe/Germany

Quote:> This is really the last time I answer such stupid questions.  I really
> cannot stand it anymore that nobody is reading the documentation.
> Everybody is whining that not everything is documented but if
> something is documented it will simply be ignored.

//Marcus
--
-------------------------------+------------------------------------
        Marcus Sundberg        | WWW: http://www.e.kth.se/~e94_msu/
 Royal Institute of Technology |             E-Mail:

On Thu, 04 Sep 1997 10:10:33 +0200,

Quote:>But even with -O2 -D_GNU_SOURCE -D__USE_GNU this will not work:
>int (*xstat) ();
>xstat = stat;

At least here, gcc-2.7.2.2.f.2 (2.7.2.2 patched for f77) compiles that fine
without any problems, generating an ad hoc version of stat (libc-5.4.38, but
stat is inline too). Besides, for glibc you should be using gcc-2.7.2.3.
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If you have not, the startup binary will start the wrong dynamic
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