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Nightly builds don't work on Ubuntu 11-04 (64bit)

#1408  Permalink Top

Nightly builds don't work on Ubuntu 11-04 (64bit)

Aug-30-11 14:13:41

Simulating any model (e.g. with OMShell) on a Ubuntu 11-04 (64 bit) system leads to the error
   /usr/bin/ld: cannot find -lexpat
The expat library is properly installed (checked with ldconfig).

This happens with 9705-1 (nightly-ubuntu) and older versions. 9040-1 (stable) works though.

   Greetings
      Peter

#1409  Permalink Top

Re: Nightly builds don't work on Ubuntu 11-04 (64bit)

Aug-30-11 14:22:10

Does the following work?

Code:


echo "int main() {return 0;}" | gcc -x c - -lexpat

And what does the following return?

Code:


$ locate libexpat.so

#1410  Permalink Top

Re: Nightly builds don't work on Ubuntu 11-04 (64bit)

Aug-30-11 15:56:54

Confusing results (for me):

Code:

> echo "int main() {return 0;}" | gcc -x c - -lexpat



/usr/bin/ld: cannot find -lexpat

collect2: ld returned 1 exit status

and

Code:

> locate libexpat.so



/daten/local/prog/matlab2011a/bin/glnxa64/libexpat.so.1

/daten/local/prog/matlab2011a/bin/glnxa64/libexpat.so.1.5.0

/lib/x86_64-linux-gnu/libexpat.so.1

/lib/x86_64-linux-gnu/libexpat.so.1.5.2

/lib32/libexpat.so

/lib32/libexpat.so.1

/lib32/libexpat.so.1.5.2

/usr/lib/vmware/lib/libexpat.so.0

/usr/lib/vmware/lib/libexpat.so.0/libexpat.so.0

/usr/lib/vmware/ovftool/libexpat.so.0

/usr/lib/vmware-installer/1.1/lib/lib/libexpat.so.0

/usr/lib/vmware-installer/1.1/lib/lib/libexpat.so.0/libexpat.so.0

and finally

Code:

# ldconfig -v | grep expat

/sbin/ldconfig.real: Pfad »/lib/x86_64-linux-gnu« mehrfach angegeben

/sbin/ldconfig.real: Pfad »/usr/lib/x86_64-linux-gnu« mehrfach angegeben

    libexpat.so.1 -> libexpat.so.1.5.2

    libexpatw.so.1 -> libexpatw.so.1.5.2

    libexpat.so.1 -> libexpat.so.1.5.2

    libexpatw.so.1 -> libexpatw.so.1.5.2

#1411  Permalink Top

Re: Nightly builds don't work on Ubuntu 11-04 (64bit)

Aug-30-11 16:00:16

So your system is similar to mine, then.

Code:

/home/marsj/matlab2009/bin/glnxa64/libexpat.so.1

/home/marsj/matlab2009/bin/glnxa64/libexpat.so.1.5.0

/home/marsj/matlab2009/toolbox/symbolic/mupad/glnxa64/lib/libexpat.so.1.0.0

/lib/x86_64-linux-gnu/libexpat.so.1

/lib/x86_64-linux-gnu/libexpat.so.1.5.2

/lib32/libexpat.so

/lib32/libexpat.so.1

/lib32/libexpat.so.1.5.2

/usr/lib/x86_64-linux-gnu/libexpat.so

The main difference seems to be /usr/lib/x86_64-linux-gnu/libexpat.so which is in your cache but not in locate?

#1412  Permalink Top

Re: Nightly builds don't work on Ubuntu 11-04 (64bit)

Aug-30-11 16:18:45

Actually it is not in /usr/lib/x86_64-linux-gnu/ !

#1413  Permalink Top

Re: Nightly builds don't work on Ubuntu 11-04 (64bit)

Aug-30-11 16:34:10

Ok, everything works now! The problem was: One has to install the dev package of libexpat as well to get the correct links. This is probably a bug in expat, but who cares. Now the daily build works for me. And this makes bug #1599 obsolete - everything works fine.

Thanks for your fast help.
    Peter

#1414  Permalink Top

Re: Nightly builds don't work on Ubuntu 11-04 (64bit)

Aug-30-11 16:42:13

Thanks; I'll add this as an additional dependency in the build (debhelper usually finds these automatically, but apparently expat was a problem as you say).

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