https://community.intel.com/t5/Intel-oneAPI-Math-Kernel-Library/How-to-make-fftw2xf-for-intel-fortran-compiler-without-intel-c/m-p/804092#M3280 Hello<BR /><BR />How i can make the lib fftw2xf without the intel c compiler for the intel fortran compiler?<BR /><BR />If i use the flag compiler=gnu (the only c compiler at the system) i cannot use the the lib with intel fortran.<BR /><BR />With best regards<BR />Axel Tue, 19 Oct 2010 14:13:10 GMT andersartig 2010-10-19T14:13:10Z https://community.intel.com/t5/Intel-oneAPI-Math-Kernel-Library/How-to-make-fftw2xf-for-intel-fortran-compiler-without-intel-c/m-p/804092#M3280 Hello<BR /><BR />How i can make the lib fftw2xf without the intel c compiler for the intel fortran compiler?<BR /><BR />If i use the flag compiler=gnu (the only c compiler at the system) i cannot use the the lib with intel fortran.<BR /><BR />With best regards<BR />Axel Tue, 19 Oct 2010 14:13:10 GMT https://community.intel.com/t5/Intel-oneAPI-Math-Kernel-Library/How-to-make-fftw2xf-for-intel-fortran-compiler-without-intel-c/m-p/804092#M3280 andersartig 2010-10-19T14:13:10Z https://community.intel.com/t5/Intel-oneAPI-Math-Kernel-Library/How-to-make-fftw2xf-for-intel-fortran-compiler-without-intel-c/m-p/804093#M3281 Axel,<DIV><SPAN style="font-family: Verdana, Arial, Helvetica, sans-serif;">I quite don't understand -</SPAN><SPAN style="font-size: 10.8333px;">What is the symptoms of the problem (I cannot use the lib with intel fortran)?</SPAN><DIV><SPAN style="font-size: 10.8333px;">Did you were able to buildfftw2xf_intel.a by using gcc?<BR /></SPAN></DIV></DIV><DIV><SPAN style="font-size: 10.8333px;">--Gennady</SPAN></DIV> Tue, 19 Oct 2010 14:46:57 GMT https://community.intel.com/t5/Intel-oneAPI-Math-Kernel-Library/How-to-make-fftw2xf-for-intel-fortran-compiler-without-intel-c/m-p/804093#M3281 Gennady_F_Intel 2010-10-19T14:46:57Z https://community.intel.com/t5/Intel-oneAPI-Math-Kernel-Library/How-to-make-fftw2xf-for-intel-fortran-compiler-without-intel-c/m-p/804094#M3282 Please provide details on which versions of tools and sources you are using, and the OS.<BR /><BR />The build on Suse 11.3 posed no problems, using the sources provided in the <I>mkl</I> sub-directory of the IFort installagion.<BR /><BR /> make lib64 compiler=gnu MKLROOT=<IFCDIR>/mkl/ # for 64 bit OS, IFORT and GCC<BR /><BR /> or<BR /><BR /> make lib32 compiler=gnu MKLROOT=<IFCDIR>/mkl/# for 32 bit OS, IFORT and GCC<BR /><BR />will build the library. <BR /><BR />If you want to develop the 32-bit library on a 64-bit OS, using IFORT and GCC, you need to add this line to the makefile:<BR /><BR /> _cflags_gnu_32 = -m32 # CNXS<BR /><BR />I ran one of the examples provided with IFORT ( r2r_1d_redft00_single_ex.f ) with the libraries so produced, and the tests were passed.<BR /></IFCDIR></IFCDIR> Tue, 19 Oct 2010 14:54:29 GMT https://community.intel.com/t5/Intel-oneAPI-Math-Kernel-Library/How-to-make-fftw2xf-for-intel-fortran-compiler-without-intel-c/m-p/804094#M3282 mecej4 2010-10-19T14:54:29Z https://community.intel.com/t5/Intel-oneAPI-Math-Kernel-Library/How-to-make-fftw2xf-for-intel-fortran-compiler-without-intel-c/m-p/804095#M3283 I made the lib with make libem64t compiler=gnu<BR /><BR />While linking the lib into the project i got the message:<BR />ipo: warning #11020: unresolved fftwnd_f77_one_<BR /><BR />The symbol is at libfftw2xf_gnu.a:<BR />libfftw2xf_gnu.a:fftwnd_f77_one.o:0000000000000000 T fftwnd_f77_one__<BR /><BR />But with 2 underscores, so i cannot really use it here (or don't know how with ifort)<BR /><BR />With best regards <BR />Axel<BR /> Wed, 20 Oct 2010 06:26:03 GMT https://community.intel.com/t5/Intel-oneAPI-Math-Kernel-Library/How-to-make-fftw2xf-for-intel-fortran-compiler-without-intel-c/m-p/804095#M3283 andersartig 2010-10-20T06:26:03Z https://community.intel.com/t5/Intel-oneAPI-Math-Kernel-Library/How-to-make-fftw2xf-for-intel-fortran-compiler-without-intel-c/m-p/804096#M3284 Hi Axel,<BR /><BR />The easiest way to fix the problem is to rebuild the libraries thus:<BR />make libem64t compiler=gnu <STRONG>COPTS=-U_GNU<BR /></STRONG><BR />This will not add the second underscore.<BR /><BR />Thanks<BR />Dima Wed, 20 Oct 2010 06:44:17 GMT https://community.intel.com/t5/Intel-oneAPI-Math-Kernel-Library/How-to-make-fftw2xf-for-intel-fortran-compiler-without-intel-c/m-p/804096#M3284 Dmitry_B_Intel 2010-10-20T06:44:17Z