[Bonmin] Unresolved symbol in libClp

[Tony Kelman]

Felipe,

COIN libraries currently don’t link to their dependencies by default. There 
are a few ways to deal with this. Either you can change the makefile of your 
application to include all of the dependencies on the link line 
(replace -lbonmin with the output of 
`PKG_CONFIG_PATH=/usr/local/lib/pkgconfig pkg-config --libs bonmin`), or you 
can try the recently added --enable-dependency-linking configure flag which 
should result in libClp depending on libcoinmumps, etc.

-Tony


-----Original Message----- 
From: Felipe Furlan
Sent: Wednesday, January 15, 2014 9:37 AM
To: bonmin at list.coin-or.org
Subject: [Bonmin] Unresolved symbol in libClp

Hi all,

I compiled Bonmin release version 1.7.4 on linux (ubuntu 12.04) with
MUMPS. MUMPS was downloaded using the get.mumps script in ThirdParty
directory. The compilation works fine, but when I use bonmin inside a
program of mine, the following error occurs:
error: /usr/local/lib/libClp.so.1: undefined symbol: MPI_Init

Looking at the library file I got:
felipe at felipe:/usr/local/lib$ nm libClp.so | grep -i MPI_INit
          U MPI_Init

Apparently, this symbol is defined in libcoinmumps:
felipe at felipe:/usr/local/lib$ nm libcoinmumps.so | grep -i mpi_init
00163e40 T MPI_Init
00160c60 T mpi_init
00160c70 T mpi_initialized_

But libClp does not depend on libcoinmumps:
felipe at felipe:/usr/local/lib$ ldd libClp.so
     linux-gate.so.1 =>  (0xb76f8000)
     libstdc++.so.6 => /usr/lib/i386-linux-gnu/libstdc++.so.6 (0xb7483000)
     libm.so.6 => /lib/i386-linux-gnu/libm.so.6 (0xb7457000)
     libc.so.6 => /lib/i386-linux-gnu/libc.so.6 (0xb72ac000)
     libgcc_s.so.1 => /lib/i386-linux-gnu/libgcc_s.so.1 (0xb728e000)
     /lib/ld-linux.so.2 (0xb76f9000)

I compiled Bonmin through:
     configure --prefix=/usr/local
     make
     sudo make install

Did I forget some flag during configuration in bonmin folder?

Thanks.
Best regards,
Felipe Furlan

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