On Mon, May 24, 2010 at 12:01:17PM -0700, H.Raza wrote: > > Thanks a lot for the reply Tom, I figured out that part after looking at a > number of sample Makefile.am files in different projects. I used the -I<dir> > flag to include the directories and the compilation began, but after a few > steps I received the following error. > > ====================== from Terminal=================== > libtool: link: g++ -g -O2 -g -O2 -o .libs/test_all test_all.o > ./.libs/libgnuradio-howto-qa.a > /home/user/Downloads/gr-howto-write-a-block-template/lib/.libs/libgnuradio-howto.so > -L/usr/local/lib -L/usr/lib /usr/lib/libcppunit.so -ldl -lboost_thread-mt > -lrt -lboost_date_time-mt /usr/local/lib/libgnuradio-core.so > /usr/local/lib/libgruel.so /usr/lib/libfftw3f.so -lgsl -lgslcblas -lm > /usr/local/lib/libgromnithread.so -pthread > /home/user/Downloads/gr-howto-write-a-block-template/lib/.libs/libgnuradio-howto.so: > undefined reference to `libmatinvTerminate' > /home/user/Downloads/gr-howto-write-a-block-template/lib/.libs/libgnuradio-howto.so: > undefined reference to `mclTerminateApplication_proxy' > /home/user/Downloads/gr-howto-write-a-block-template/lib/.libs/libgnuradio-howto.so: > undefined reference to `mclInitializeApplication_proxy' > /home/user/Downloads/gr-howto-write-a-block-template/lib/.libs/libgnuradio-howto.so: > undefined reference to `libmatinvInitialize' > collect2: ld returned 1 exit status > ======================================================= > > In the above errors libmatinv is the name of my generated library from > matlab mcc. The library is already in the lib folder. The C driver > implementation is also in the lib folder inside generalwork function > implementation. > > I have been searching around for this error and I heard from someone that I > might have to use -L<dir> and "small L"-l<dir> flags to give the compiler > the implementation of the functions in my library header, along with the > -I<dir> but I am not exactly sure which files does it need. Any suggestions > in this regard are highly appreciated. > > Also Tom you mentioned M4 config files, I am planning to release these later > on once my target is achieved. Would you kindly guide me a little, so I have > a decent idea where to start learning about these files and then take it 1 > step at a time. Thanks again. >
You have apparently failed to add the additional link-time dependency when you are bulding libgnuradio-howto.so. The library that's missing is the one that contains libmatinvTerminate, et al. I suggest that you spend a few minutes with the automake documentation: http://www.gnu.org/software/automake/#TOCdocumentation Eric _______________________________________________ Discuss-gnuradio mailing list Discuss-gnuradio@gnu.org http://lists.gnu.org/mailman/listinfo/discuss-gnuradio
