#3 Ubuntu 11.10: /src/lib/.libs/libavis.so: undefined reference

[Kyle Redelinghuys]

Hi there

I am having some trouble with building the Avis C library (1.2.4) on Ubuntu 11.10.

I run autoreconf, then./configure and then sudo make, and come up with this error:
../../src/lib/.libs/libavis.so: undefined reference to `ceil'

I've read through this thread: http://sourceforge.net/tracker/?func=detail&aid=2566342&group_id=181381&atid=896975, but following these instructions doesn't work, and unfortunately I cannot find anything else online. Your help in getting this fixed will be greatly appreciated.

Thanks
Kyle

[Matthew Phillips]

Hi Kyle,

have a look at configure.ac line 79 that looks like:

# linked libraries needed by various platforms
case $host in
*-*-linux*)
AVIS_LDFLAGS="$AVIS_LDFLAGS -lm"
;;
sparc-sun-solaris*)
AVIS_LDFLAGS="$AVIS_LDFLAGS -lm -lsocket"
;;
*-*-freebsd*|*-*-openbsd*|*-*-netbsd*)
AVIS_LDFLAGS="$AVIS_LDFLAGS -lm"
;;
esac

You need the "-lm" and I think your Ununtu is not matching any of those. You could just hack a "*" matching line in there, or let me know what the correct $host looks like.'

Matthew.

[Kyle Redelinghuys]

Hi Matthew

I went in and added another condition that would catch any other hosts that weren't in the case statement, like so:

# linked libraries needed by various platforms
case $host in
*-*-linux*)
AVIS_LDFLAGS="$AVIS_LDFLAGS -lm"
;;
sparc-sun-solaris*)
AVIS_LDFLAGS="$AVIS_LDFLAGS -lm -lsocket"
;;
*-*-freebsd*|*-*-openbsd*|*-*-netbsd*)
AVIS_LDFLAGS="$AVIS_LDFLAGS -lm"
;;
*)
AVIS_LDFLAGS="$AVIS_LDFLAGS -lm"
;;
esac

I am not sure if this is correct, but after doing this is still does not work.

How can I get the $host?

Apologies, this is pretty deep down the rabbit hole for me.

Thanks

[Kyle Redelinghuys]

Hi Matt

I have subsequently found out that by default Ubuntu does not declare the host variable, so I manually set it (to simply linux-ubuntu). I also updated the lines in configure.ac to:

# linked libraries needed by various platforms
case $host in
*-*-linux*)
AVIS_LDFLAGS="$AVIS_LDFLAGS -lm"
;;
sparc-sun-solaris*)
AVIS_LDFLAGS="$AVIS_LDFLAGS -lm -lsocket"
;;
*-*-freebsd*|*-*-openbsd*|*-*-netbsd*)
AVIS_LDFLAGS="$AVIS_LDFLAGS -lm"
;;
*-ubuntu*)
AVIS_LDFLAGS="$AVIS_LDFLAGS -lm"
;;
esac

I then re-reun autoreconf, ./configure and make, and still come up with the same error. Will carry on testing, thanks for the help.

Kyle

[Matthew Phillips]

Hi Kyle,

I'll have a try compiling on a Ubuntu box later today and see what happens. I strongly suspect the -lm is still not sticking.

As a last resort, do a "make distclean" (or re-extract the tar ball and patch configure.ac) and try again.

[Matthew Phillips]

I've just successfully compiled the client lib on Ubuntu 10.04 (I don't have a an 11.10 box handy), no changes required. I'm very surprised there's any difference between these two, since the Avis client lib doesn't depend on anything at all sophisticated.

[Kyle Redelinghuys]

Hi Matt

Thanks for following up. That's odd it compiled straight away, I've tried a number of combinations of conditionals in configure.ac, as well as various different $host values, still with no luck. From what I understand it's not a big issue, and the -lm is needed, but for whatever reason it's not getting there.

If you have any suggestions for me, it would be of great help. I need this middleware to work in order to run another program, and there are no substitutions.

Let me know if I can assist with any dumps of data, or anything else.

Thanks

[Matthew Phillips]

I can send you a .so or .a if you're really stuck: I suspect it will be fine on a later distro. Is this 32 or 64 bit?

Alternatively, you could try "export CFLAGS=-lm" before running the build, which may get the flag into the compilation.

[Kyle Redelinghuys]

Dump from autoreconf to failed make

[Kyle Redelinghuys]

Hi Matt

I ran the export and did not effect the outcome (I also tried before and after the configure commands in case). I have attached the complete dump from autoreconf until the failed make, hopefully this helps. The distro I am using is 32 bit, up-to-date Ubuntu 11.10. Your help is most appreciated.

Thanks

[Matthew Phillips]

Hi Kyle,

grab the Ubuntu ELF 32-bit .so (http://dl.dropbox.com/u/363918/libavis.so.0.0.0) and .a (http://dl.dropbox.com/u/363918/libavis.a) and see if that can at least get you unstuck.

Matthew.

[Sasi]

Hi,

This problem is because a new flag activated on ldd since ubuntu 11.10.
There's more info and a solution here: http://ubuntuforums.org/showthread.php?t=1859400