Could NOT find Boost

Wed · 07-25-2010, 07:18 AM

I am trying to compile and install the qt4-gui for Licq. The configure, or buildscript, don't end in an error. But on checking, it says

Code:

$ cmake -DCMAKE_INSTALL_PREFIX=/opt/licq/ ..
-- Could NOT find Boost
-- Found Licq include dir: /home/wed/licq-1.3.9/include
-- Configuring done
-- Generating done
-- Build files have been written to: /home/wed/licq-1.3.9/plugins/qt4-gui/build
bash-4.1$

The requirements state:

Quote:

Boost C++ Libraries >= 1.31.1. Portable and very useful C++ libraries, see http://www.boost.org/ for more information.

I have checked and my system holds boost-1.42.0-i486-1.txz. I even reinstalled it. The sources are downloaded from boost.org, so 1.43 is possible, but ought not to be necessary.

Do I need to specify some path?

business_kid · 07-25-2010, 11:11 AM

Probably the pkgconfig path. The compile checks /usr/lib/pkgconfig, but if you installed in /usr/local, there might be a /usr/local/pkgconfig

Find pkgconfig directories, and try either specifying the pkgconfig path, or
cd /usr/lib(64)/pkgconfig
lndir /usr/local/lib/pkgconfig
lndir /opt/lib/pkgconfig
etc.

Wed · 07-25-2010, 12:20 PM

I compiled qt4 from source if that is of any help. But I installed qt3-compat from extra because of Qcad.

So a locate reports pkgconfig in:

/opt/kde3/lib/pkgconfig
/usr/lib/qt/lib/pkgconfig
/usr/lib/pkgconfig
/usr/share/pkgconfig

/usr/lib/pkgconfig holds by far the largest set of files. But as that directory is checked, wouldn't boost be found?

larryhaja · 07-25-2010, 06:25 PM

I just built licq 1.3.9 and Cmake reported the same thing about missing Boost. This is a full install and so I know I have Boost installed.

Looking inside CMakeLists.txt, Cmake is looking for a Boost component called smart_ptr. I have no idea what that is but there is an include directory inside /usr/include/boost called smart_ptr. I hacked CMakeLists.txt so that it just generically looks for Boost and Cmake reported that it found Boost but it doesn't look like it does anything.

However, even if Cmake finds boost or not for the qt4-gui I was still able to build licq as well as the qt4-gui plugin. So, whatever Cmake reports it seems to be irrelevant.

business_kid · 07-26-2010, 02:54 AM

Will you post the exact error please, and we can see about sorting this?

knudfl · 07-26-2010, 12:07 PM

I have checked with boost 1.38 and 1.42 :

readelf -s /usr/lib/libboost_* | grep -i smart

My first guess was for a symbol not included in the "new boost".
But no luck with any of those versions.
So I don't know, what it could mean.

But : A Makefile is generated and 'make' = No errors.
( No boost is used.)

I looked into the licq.spec in licq-1.3.9-1.17.src.rpm
http://download.opensuse.org/source/...9-1.17.src.rpm
There are no workarounds for the qt-gui, I think.
So may be "Could NOT find Boost" is just to be ignored.
..
P.S. : #5 @business_kid : The exact error is : "Could NOT find Boost".
..

knudfl · 07-27-2010, 08:59 AM

.. Sorry ..

tuxdev · 07-27-2010, 10:15 AM

The reason is that CMake doesn't know about Boost 1.42.0, only up to 1.41.0. Try putting this in the CMakeLists.txt:

Code:

SET(Boost_ADDITIONAL_VERSIONS "1.42" "1.42.0")

selfprogrammed · 07-27-2010, 04:22 PM

This is not going to be of much help. I tried to install the latest Boost
(Several times Jan..Apr 2010) and it would give error messages during compile (like 147 error messages). I could never get the program that needed it to recognize the incomplete library that did compile. Contacting the Boost team was futile.
I was using an older kernel and they would not help with any information so I could fix the incompatibility myself. When asked "Do you really want to support every port yourself" they replied "yes" and that they did not want anyone else messing around in the port configuration files, apparently not even on their own machine (etc. it went on for awhile).

If this is not the latest kernel, then it may not work, and you will not
get help about older kernels.

I think something in the installation is terribly fragile and may depend on which distribution you are using.

I gave up on Boost, but am now installing a new Slackware where it seems to come included, so maybe this one will work.

Sorry this is so negative, but I just pass this on so others know what
has been tried already.

larryhaja · 07-27-2010, 08:00 PM

Quote:

Originally Posted by tuxdev

The reason is that CMake doesn't know about Boost 1.42.0, only up to 1.41.0. Try putting this in the CMakeLists.txt:

Code:

SET(Boost_ADDITIONAL_VERSIONS "1.42" "1.42.0")

That won't do anything. If simply replacing

Code:

find_package(Boost 1.31.1 COMPONENTS smart_ptr)

with

Code:

find_package(Boost)

then it will find the correct Boost version. The problem is searching for the smart_ptr component of Boost fails during configure.

business_kid · 07-28-2010, 02:53 AM

FWIW, I have boost installed (slackpkg) here and it did not seem to write a pkgconfig file anywhere.That could be part of the problem.

Martinezio · 07-28-2010, 04:16 AM

Yes, You can't use pkgconfig for boost presence detection, because boost don't ship pc file

.
Try to figure out, how licq cmake script detect boost presence, but I think, that he's looking for library files in standard locations (ie. /usr/lib, /usr/local/lib) _and_ for boost headers in common locations.

Try to update Your ld cache, and look in common location for libboost* and include/boost

Wed · 07-28-2010, 06:19 AM

It was a few days ago I checked this thread last. Sorry about that. I wrote to the licq dev-list. They might have an idea.

Wed · 07-28-2010, 02:47 PM

Erik the dev, responded like this:

Quote:

The CMakeLists.txt for qt4-gui in 1.3.9 has this line:
find_package(Boost 1.31.1 COMPONENTS smart_ptr)

This is an error. Since smart_ptr is a header-only component it should
not be searched for using COMPONENTS since this only works for boost
components that have a library.

I have now changed (in r7729) this line to:
find_package(Boost 1.31.1)

Which is what we already have on trunk. It should be noted that as
long as it compiles you can safely ignore the Boost NOT found error.
If you have problem building qt4-gui, please try changing the line as
indicated above.