Re: LD_LIBRARY_PATH vs rpath and libtool

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On Thursday, March 28, 2019 1:27:34 PM CET Pavel Raiskup wrote:
> Hi Ingvar,
> 
> On Thursday, March 28, 2019 11:58:21 AM CET Ingvar Hagelund wrote:
> > Fedora prohibits the use of rpath, ref 
> > https://docs.fedoraproject.org/en-US/packaging-guidelines/#_beware_of_rpath
> > 
> > When compiling varnish with litbool, I ensure this by the usual
> > 
> > sed -i 's|^hardcode_libdir_flag_spec=.*|hardcode_libdir_flag_spec=""|g;
> >         s|^runpath_var=LD_RUN_PATH|runpath_var=DIE_RPATH_DIE|g' libtool
> 
> With new enough libtool script, you can use this instead:
> 
>     %configure LT_SYS_LIBRARY_PATH=%_libdir
> 
> or if that makes sense in your case:
> 
>     %configure LT_SYS_LIBRARY_PATH=%_libdir:
> 
> This is unfortunately needed because it is not easy to detect whether the
> linker uses /usr/lib64 path by default.  Ideas?  Libtool attempts to parse
> ld.so.conf & friends, but the desired info isn't there....

We could though work-around this system-wide, if there's no better way:
https://src.fedoraproject.org/rpms/redhat-rpm-config/pull-request/55

Pavel

> > However, during build and check, I need access to a library in the build. For
> > example, the test suite uses the binary varnishtest to access
> > libvarnishapi.so.2, which is not visible as the package is not installed yet.
> 
> If you use the LT_SYS_LIBRARY_PATH instead DIE_RPATH_DIE the tests should
> just work.
> 
> > I have gotten around this by putting in LD_LIBRARY_PATH where I need,
> > but rpmlint gives me a warning on that.
> 
> Can you post the warnings?  I've been using LD_LIBRARY_PATH in %check for
> quite some time [1], and rpmlint did not complain...
> 
> > Are there other possibilities to solve this?
> 
> Report that to rpmlint so they don't complain in %check?  Push to rpmlint
> upstream to implement ignore file?
> 
> [1] https://src.fedoraproject.org/rpms/libarchive/c/f64e33e456d935e34f6202449cecb9eb00136436?branch=master
> 
> Pavel
> 
> 
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