ffOn 07/16/2010 02:54 PM, alfa...@aol.com wrote:
Hi, I'm running into some issues linking against libraries. I'm running a "console-image" Angstrom on the Beagleboad and I've been adding packages as necessary to support compiling code directly on the board.To support building packages on the BB, I bitbaked "package-native-sdk" and "pkg-config" and installed those packages with all the other dependencies as indicated by opkg: gcc, libgcc, automake, perl, .... etc. Now I'm trying to compile a program natively that links against fftw3 library so I bitbaked and installed the fftw3 library: the libfftw3, fftw3, and fftw3-dev. Now to link to fftw3 I added the "-L /usr/lib -lfftw3" flags for link but i would get the error message cannot find -lfftw3 collect2: ld returned 1 exit status I also tried using "pkg-config --libs fftw3" in my Makefile and I still get the same error message. I don't know why GCC can't seem to find the library especially that pkg-config and ldconfig have links to the library. The following are outputs from pkg-config and ldconfig ldconfig -v | grep fftw libfftw3.so.3 -> libfftw3.so.3.2.2 libfftw3f.so.3 -> libfftw3f.so.3.2.2 pkg-config --list-all fftw3f FFTW - fast Fourier transform library fftw FFTW - fast Fourier transform library fftw3 FFTW - fast Fourier transform library it seems to me that everything is in order but i'm probably missing something ... any help would be greatly appreciated. thanks
I bet you need the dev packages. fftwf-dev and/or fftw-dev Philip
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