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Message-ID: <4162A0F8.74A77712@dessent.net>
Date: Tue, 05 Oct 2004 06:26:16 -0700
From: Brian Dessent <brian AT dessent DOT net>
Organization: My own little world...
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To: cygwin AT cygwin DOT com
Subject: Re: Compiling LAM MPI results in undefined reference
References: <200410051310 DOT i95DABUn005940 AT tyr DOT informatik DOT fh-fulda DOT de>
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Siegmar Gross wrote:

> I tried to compile lam-mpi-7.1.1 on the latest Cygwin release and
> failed. 
> ...
> gcc -O3 -fexceptions -fexceptions -o lamgrow.exe lamgrow.o
> ../../share/liblam/.libs/liblam.a ../../share/libltdl/.libs/libltdlc.a
> ../../share/liblam/.libs/liblam.a(ssi_boot_slurm.o)(.text+0x3c8):ssi_boot_slurm.
> c: undefined reference to `_inet_ntop'

inet_ntop() is an IPv6 networking function.  Cygwin does not support
IPv6 yet.  Check for something you can #undef to disable IPv6 in the
app, or check the IPv6 configure tests.  You could also grep for
inet_ntop() in the source and see if it's guarded by any #ifdefs - if
not it assumes IPv6 support which is not present, and you'll have to
adapt it accordingly.

(Disclaimer: I have no idea what "lam-mpi" is or does.)

Brian

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