https://community.intel.com/t5/Intel-oneAPI-Math-Kernel-Library/Link-problem-on-Ubuntu-10-04/m-p/793064#M2397 that's exactly what Victor ( post #1) recommended to do and Linker Adviser recommend the similar things<BR /> Tue, 15 Nov 2011 14:40:15 GMT Gennady_F_Intel 2011-11-15T14:40:15Z https://community.intel.com/t5/Intel-oneAPI-Math-Kernel-Library/Link-problem-on-Ubuntu-10-04/m-p/793059#M2392 Hi all, I have a CMake based crossplatform application which uses MKL, and builds on Windows/OSX and Linux. On the latter, I have one link problem left:<DIV><DIV id="_mcePaste"></DIV><DIV id="_mcePaste">/opt/intel/mkl/lib/ia32/libmkl_core.a(_def_dfti_create_srmd.o): In function `commit':</DIV><DIV id="_mcePaste">../../../../dft/kernel/0ref/dfti_create_srmd.c:(.text+0x15): undefined reference to `mkl_dft_commit_node_s_r2c_md_omp'</DIV><DIV></DIV>/opt/intel/mkl/lib/ia32/libmkl_core.a(_def_dfti_create_srmd.o): In function `commit':../../../../dft/kernel/0ref/dfti_create_srmd.c:(.text+0x15): undefined reference to `mkl_dft_commit_node_s_r2c_md_omp'</DIV><DIV>[...snip...]</DIV><DIV></DIV><DIV>What library am I missing ? The libraries linked to are (output from the FindMKL.cmake script):</DIV><DIV>-- MKL_LIBRARIES: /opt/intel/mkl/lib/ia32/libmkl_intel.a;/opt/intel/mkl/lib/ia32/libmkl_intel_thread.a;/opt/intel/mkl/lib/ia32/libmkl_core.a;/opt/intel/lib/ia32/libiomp5.a;/opt/intel/mkl/lib/ia32/libmkl_cdft_core.a</DIV><DIV></DIV><DIV>Help ? :)</DIV><DIV>TIA</DIV><DIV>/Rob</DIV><DIV></DIV> Tue, 15 Nov 2011 11:56:21 GMT https://community.intel.com/t5/Intel-oneAPI-Math-Kernel-Library/Link-problem-on-Ubuntu-10-04/m-p/793059#M2392 Robert_Bielik 2011-11-15T11:56:21Z https://community.intel.com/t5/Intel-oneAPI-Math-Kernel-Library/Link-problem-on-Ubuntu-10-04/m-p/793060#M2393 Hi,<BR /><BR />To link with MKL static libraries on Linux it needs to use -Wl,--start-group ... -Wl,--end-group ld-options.<BR />Please use <A href="http://software.intel.com/en-us/articles/intel-mkl-link-line-advisor/">Intel MKL Link Line Advisor</A> Tue, 15 Nov 2011 12:09:43 GMT https://community.intel.com/t5/Intel-oneAPI-Math-Kernel-Library/Link-problem-on-Ubuntu-10-04/m-p/793060#M2393 barragan_villanueva_ 2011-11-15T12:09:43Z https://community.intel.com/t5/Intel-oneAPI-Math-Kernel-Library/Link-problem-on-Ubuntu-10-04/m-p/793061#M2394 Problem is how to specify that with CMakeLists.txt files... Tue, 15 Nov 2011 12:15:44 GMT https://community.intel.com/t5/Intel-oneAPI-Math-Kernel-Library/Link-problem-on-Ubuntu-10-04/m-p/793061#M2394 Robert_Bielik 2011-11-15T12:15:44Z https://community.intel.com/t5/Intel-oneAPI-Math-Kernel-Library/Link-problem-on-Ubuntu-10-04/m-p/793062#M2395 Or rather, which library contains symbol 'mkl_dft_commit_node_s_r2c_md_omp' ??<DIV></DIV><DIV>TIA</DIV><DIV>/Rob</DIV><DIV></DIV> Tue, 15 Nov 2011 12:24:05 GMT https://community.intel.com/t5/Intel-oneAPI-Math-Kernel-Library/Link-problem-on-Ubuntu-10-04/m-p/793062#M2395 Robert_Bielik 2011-11-15T12:24:05Z https://community.intel.com/t5/Intel-oneAPI-Math-Kernel-Library/Link-problem-on-Ubuntu-10-04/m-p/793063#M2396 Actually I solved it by enclosing my libraries using MKL, and the MKL libraries within the start-group, end-group like so:<DIV></DIV><DIV>TARGET_LINK_LIBRARIES(Application -Wl,--start-group MyLibA MyLibB ${MKL_LIBRARIES} -Wl,--end-group)</DIV><DIV></DIV><DIV>and that seems to take care of things :)</DIV><DIV></DIV><DIV>/Rob</DIV><DIV></DIV> Tue, 15 Nov 2011 12:48:44 GMT https://community.intel.com/t5/Intel-oneAPI-Math-Kernel-Library/Link-problem-on-Ubuntu-10-04/m-p/793063#M2396 Robert_Bielik 2011-11-15T12:48:44Z https://community.intel.com/t5/Intel-oneAPI-Math-Kernel-Library/Link-problem-on-Ubuntu-10-04/m-p/793064#M2397 that's exactly what Victor ( post #1) recommended to do and Linker Adviser recommend the similar things<BR /> Tue, 15 Nov 2011 14:40:15 GMT https://community.intel.com/t5/Intel-oneAPI-Math-Kernel-Library/Link-problem-on-Ubuntu-10-04/m-p/793064#M2397 Gennady_F_Intel 2011-11-15T14:40:15Z