[pgrouting-dev] Building TRSP branch

[Stephen Woodbridge]

On 6/11/2012 3:41 PM, Steve Horn wrote:
> Hello again :)
>
> Trying to build and install the trsp branch on my CentOS linux box.
> (Using
> https://github.com/pgRouting/pgrouting/wiki/Developer---Getting-Started as
> a baseline)
>
> Here is where I'm at:
> # git clone https://github.com/pgRouting/pgrouting.git
> # cd pgrouting
>
> //Hack around installing GAUL
>
> # cmake -DWITH_TSP=ON -DWITH_DD=ON .
> -- POSTGRESQL_EXECUTABLE is POSTGRESQL_EXECUTABLE-NOTFOUND
> -- Found PostgreSQL: /usr/include/postgresql/include/server,
> /usr/pgsql-9.1/lib/libpq.so
> Boost headers were found here: /usr/include
> Output directory for libraries is set to /usr/pgsql-9.1/lib
> Installation directory for libraries is set to /usr/pgsql-9.1/lib and
> for SQL files is set to /usr/share/pgrouting
> Installation directory for libraries is set to /usr/pgsql-9.1/lib
> -- Configuring done
> -- Generating done
> -- Build files have been written to: /home/shorn/pgrouting
>
> # make
> Linking CXX shared library ../../../lib/librouting_tsp.so
> */usr/bin/ld: cannot find -lgmp  //THIS APPEARS TO BE THE PROBLEM?*
> collect2: ld returned 1 exit status
> make[2]: *** [lib/librouting_tsp.so] Error 1
> make[1]: *** [extra/tsp/src/CMakeFiles/routing_tsp.dir/all] Error 2
> make: *** [all] Error 2
>
> Can anyone help me understand the error "Cannot find -lgmp"?

For TSP you need to instal GUAL and for DD you need the CGAL libraries.

Try:

yum search libcgal
yum search cgal

You probably need the dev package also.

After you:

cd pgrouting
git checkout trsp   ## switch to trsp branch
git pull
cmake -DWITH_TRSP=ON -DWITH_TSP=ON -DWITH_DD=ON .

-Steve