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From: Jacky <jacky70122 AT yahoo DOT com>
Subject: Re: 1.7.8: undefined reference to =?utf-8?b?X194cGdfc3RyZXJyb3Jfcg==?=
Date: Wed, 30 Mar 2011 08:31:52 +0000 (UTC)
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Corinna Vinschen <corinna-cygwin <at> cygwin.com> writes:

> 
> On Mar  8 18:53, Hughes, Gregory Mark (PSG Consumer Experience) wrote:
> > Hi,
> > 
> > After updating to Cygwin 1.7.8-1, I am seeing an unresolved reference to 
__xpg_strerror_r 
> 
> Fixed in the recent snapshots on http://cygwin.com/snapshots/
> 
> Corinna
> 


Hi, Corinna, I also found the same error when building MPICH2 in Cygwin 1.7.8. 

make[2]: Entering directory `/cygdrive/d/cygwin/tmpmpich2/examples'
../bin/mpicc -I../src/include -I/cygdrive/d/cygwin/mpich2-1.3.2p1/src/include -
c /cygdrive/d/cygwin/mpich2-1.3.2p1/examples/cpi.c
../bin/mpicc   -o cpi cpi.o  -lm 
/cygdrive/d/cygwin/tmpmpich2/lib/libmpich.a(strerror.o):strerror.c:
(.text+0x28): undefined reference to `__xpg_strerror_r'
collect2: ld returned 1 exit status
make[2]: *** [cpi] Error 1
make[2]: Leaving directory `/cygdrive/d/cygwin/tmpmpich2/examples'
make[1]: *** [all-postamble] Error 2
make[1]: Leaving directory `/cygdrive/d/cygwin/tmpmpich2'
make: *** [all-redirect] Error 2

How do the snapshots work? Should I replace cygwin1.dll by the snapshots? 
Where to put winsup?

Thanks
Jacky


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