Re: Libtool doesn't set -rpath automatically when needed?

[Benoit SIGOURE]

On Nov 2, 2007, at 11:00 PM, Roumen Petrov wrote:

> Usually /etc/ld.so.conf contain /usr/local/lib.
> Dunno why this path is not set on you host.
>
> Benoit SIGOURE wrote:
> > Hi list,
> > On GNU/Linux Debian with GCC 4.1 / Debian's libtool 1.5.22-4  
> > (1.1220.2.365 2005/12/18 22:14:06), I have Boost installed under / 
> > usr/local/lib (pre-built binaries: http://www.tsunanet.net/~tsuna/ 
> > boost_1_34_1-i486-linux-gcc41.tar.gz) and when I link with `- 
> > lboost_thread-gcc41-mt-1_34_1 -pthread' I can't run the executable  
> > without manually setting LD_LIBRARY_PATH.  Shouldn't libtool do  
> > something about this?  I know that Boost doesn't come with .la  
> > files but since /usr/local/lib isn't in sys_lib_search_path_spec,  
> > shouldn't it use -rpath and friends when available/required?
> > What would be the best solution to handle this issue?  Write my  
> > own check to see how to set the rpath (-rpath/-Wl,-rpath/-R/etc.)  
> > and check if linking against -lboost_thread* requires a -rpath or  
> > not, and if it does, automagically add it to  
> > BOOST_THREADS_LDFLAGS?  That sounds tedious.  And how is it going  
> > to work on, say, OSX, where there is no -rpath/-R?  Moreover, I  
> > don't see how to do such a check while preserving cross- 
> > compilation capabilities (since checking whether -rpath works or  
> > not requires to run the binary somehow, doesn't it?  Or maybe  
> > analyzing the output of `ldd'?  But it surely isn't something  
> > standard, for instance on OSX it's `otool -L' and it requires the  
> > package odcctools...).

Hi, please avoid top-posting (http://en.wikipedia.org/wiki/Top-posting)

address@hidden ~ $ cat /etc/ld.so.conf
include /etc/ld.so.conf.d/*.conf
address@hidden ~ $ cat /etc/ld.so.conf.d/*.conf
# Multiarch support
/lib/i486-linux-gnu
/usr/lib/i486-linux-gnu
address@hidden ~ $ uname -a
Linux bf-debian 2.6.18-3-686 #1 SMP Mon Dec 4 16:41:14 UTC 2006 i686  
GNU/Linux
address@hidden ~ $ cat /etc/debian_version
4.0

Cheers,

--
Benoit Sigoure aka Tsuna
EPITA Research and Development Laboratory

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