issues with compiling FLANN with arm-linux-gcc for ARM Cortex A9 !

[anupkini]

Dear All,

I am trying to build a PCL and ROS platform for Xilinx ZYNQ SoC with a Dual Core ARM Coretex A9.

When i try to compile FLANN with the Code Sourcery ARM GNU Toolchain, i get the following error.
/home/akini/Downloads/flann-1.7.1-src/src/cpp/flann/util/logger.h:73:9: note: the mangling of 'va_list' has changed in GCC 4.4
Linking CXX executable ../bin/flann_example_cpp
/usr/local/lib/libhdf5.a(H5.c.o): In function H5check_version': H5.c:(.text+0x251c): undefined reference toH5libhdf5_settings'
/usr/local/lib/libhdf5.a(H5T.c.o): In function H5T_init_interface': H5T.c:(.text+0x9e0): undefined reference toH5TN_init_interface'
collect2: ld returned 1 exit status
make[2]: *** [bin/flann_example_cpp] Error 1
make[1]: *** [examples/CMakeFiles/flann_example_cpp.dir/all] Error 2
make: *** [all] Error 2

I have added the following lines in the CMakelists.txt at the beginning of the file.

cmake_minimum_required(VERSION 2.6)

SET(CMAKE_C_COMPILER /home/akini/CodeSourcery/Sourcery_CodeBench_Lite_for_Xilinx_GNU_Linux/bin/arm-xilinx-linux-gnueabi-gcc)
SET(CMAKE_CXX_COMPILER /home/akini/CodeSourcery/Sourcery_CodeBench_Lite_for_Xilinx_GNU_Linux/bin/arm-xilinx-linux-gnueabi-g++)

SET(CMAKE_FIND_ROOT_PATH /home/akini/CodeSourcery/Sourcery_CodeBench_Lite_for_Xilinx_GNU_Linux/ /home/akini/CodeSourcery/Sourcery_CodeBench_Lite_for_Xilinx_GNU_Linux/arm-xilinx-linux-gnueabi/)

if(COMMAND cmake_policy)
cmake_policy(SET CMP0003 NEW)
endif(COMMAND cmake_policy)

Kindly let me know where i am going wrong and also if some one has already cross compiled for ARM, then few tips will be really helpful.

Thanks,
Anup.
email: akini@synapticon.com

[mariusmuja]

Hi,

It looks like you might be trying to link the flann_example_cpp which is compiled with the ARM cross-compile toolchain with the system library /usr/local/lib/libhdf5.a.

If the compilation got that far (to the example flann_example_cpp) it means the library was successfully compiled. FLANN does not require the hdf5 library, only the examples and the tests do.