Re: [Discuss-gnuradio] Boost recipe in pybombs

[Tim]

Alex,

This is set because of the unfortunate way some version of
FindBoost.cmake are written
the order it searches for libs can look something like

1. check for libboostfoo-mt.so in $BOOST_ROOT
2. check for libboostfoo-mt.so in /usr/lib/
3. check for libboostfoo.so in $BOOST_ROOT
4. check for libboostfoo.so in /usr/lib/

A result of this is that if you build without the -mt tag, and you are
on a distro that has an older version of boost installed into /usr/lib/
system paths - $BOOST_ROOT will be ignored because it checks all the
search directories for each library naming case in an unfortunate order.
So building with -mt every time to ensures FindBoost.cmake picks up the
right prefixed boost library (if built from source) every time when
building other recipes that use boost & cmake.

-Tim

On 08/01/2013 02:16 PM, Alexandru Csete wrote:
> The boost recipe in pybombs builds using the --layout=tagged option
> which will  generate libraries with the -mt suffix. The 'mt' stands
> for multi threaded and is only available for historical reasons,I
> suppose.
>
> Is there any particular reason for using this optionin pybombs? There
> are some linux distributions that have abandoned the -mt suffix and
> gnuradio builds just fine on those. Ubuntu still uses the -mt suffix
> but also creates softlinks  without the suffix, so it is safe for an
> application to only link to libboost-xyz without the suffix.
>
> Alex
>
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