cmake build problem

Discovered the system builds OK without the driving distance -DWITH_DD=ON flag turned on.

As a further twist, even though it crashes the rest of the build, the DrivingDistance directory will actually compile on its own.

Diff on build directories, one with both DD & TSP flags set, other with just TSP flag.

Noticed same symptom occurs after cmake is run twice in the same directory.

Looks like problem is failure to locate the c++ header files which are in /usr/include/c++/4.1.2/ . Can't find any way to force cmake to feed this to the makefiles.

'$libdir/routing_tsp' in librouting_tsp.sql should be changed to $libdir/librouting_tsp or vice-versa.

Script installs librouting_tsp.so into /usr/lib ; should go into /usr/lib/postgresql since that's where it expects to find it. When moved & renamed crashes with the following message:- sql:/usr/share/postgresql/routing_tsp.sql:28: ERROR: could not load library "/usr/lib/postgresql/librouting_tsp.so": /usr/lib/postgresql/librouting_tsp.so: undefined symbol: ga_select_one_randomrank

Here is the ldd output:-

transport@rod1:~$ ldd /usr/lib/postgresql/librouting_tsp.so

linux-gate.so.1 => (0xffffe000) /lib/libsafe.so.2 (0xb7f67000) libstdc++.so.6 => /usr/X11R6/lib/libstdc++.so.6 (0xb7e56000) libm.so.6 => /lib/libm.so.6 (0xb7e2f000) libgcc_s.so.1 => /usr/X11R6/lib/libgcc_s.so.1 (0xb7e24000) libc.so.6 => /lib/libc.so.6 (0xb7ce2000) libdl.so.2 => /lib/libdl.so.2 (0xb7cde000) /lib/ld-linux.so.2 (0x80000000)

What needs to end up in link.txt under routing_tsp.dir is something like this :-

/usr/bin/gcc -O2 -Wall -Wmissing-prototypes -Wpointer-arith -Winline -Wdeclaration-after-statement -Wendif-labels -fno-strict-aliasing -fpic -shared -Wl,-soname,librouting.so.0 -L/usr/lib -Wl,-rpath,'/usr/lib' -lstdc++ -L/usr/local/lib -lgaul_util -lgaul -L/usr/src/disks/DB/GPS/PostgresRouting/CGAL-3.3.1/lib/i686_Linux-2.6_g++-4.1.2 -lCGAL -o /usr/lib/librouting_tsp.so "CMakeFiles/routing_tsp.dir/tsp.o" "CMakeFiles/routing_tsp.dir/tsp_solver.o"

I ran into similar (same?) problems on OSX. Here is what I came up with to get the include and link options where they need to be. It's a quick hack, and there may be better ways to do this in cmake. And on OSX, there are some additional problems (tickets: #89, #90, #91).

extra/driving_distance/src/CMakeLists.txt: replace the ADD_LIBRARY() with

INCLUDE_DIRECTORIES(${CGAL_INCLUDE_DIR} ${Boost_INCLUDE_DIRS})
LINK_DIRECTORIES(${CGAL_LIBRARIES})

ADD_LIBRARY(routing_dd MODULE alpha.c alpha_drivedist.cpp alpha.h boost_drivedist.cpp drivedist.c drivedist.h)

TARGET_LINK_LIBRARIES(routing_dd CGAL)

extra/tsp/src/CMakeLists.txt: replace the ADD_LIBRARY() with

INCLUDE_DIRECTORIES(${GAUL_LIBRARIES}/../include)
LINK_DIRECTORIES(${GAUL_LIBRARIES})

ADD_LIBRARY(routing_tsp MODULE tsp.c tsp.h tsp_solver.cpp)

TARGET_LINK_LIBRARIES(routing_tsp gaul gaul_util)

The Gaul include dir would be more elegant if there was a GAUL_INCLUDE_DIR variable.