On Sat, Jul 16, 2016 at 6:20 AM, <dan...@basereality.com> wrote: > > Can anyone tell me what I'm doing wrong when building a go program that uses > the ImageMagick library that has been installed to a non-standard location. > > What I think I'm seeing is that the program builds, but a flag telling the > program to look in the non-standard location for the dynamic library isn't > set _somewhere_ and so the program fails to be able to locate the library. > > Steps to reproduce are: > > Configure ImageMagick to install to a non-standard directory and build it: > # ./configure --prefix="/temp/imagemagick-temp" --without-magick-plus-plus > --without-perl --disable-openmp --with-gvc=no > # make install > > Add the pkgconfig directory to PKG_CONFIG_PATH so that pkg-config can find > it. > # export PKG_CONFIG_PATH=/temp/imagemagick-temp/lib/pkgconfig > > Check that pkg-config is happy and can find it: > # pkg-config --cflags --libs MagickWand MagickCore > -DMAGICKCORE_HDRI_ENABLE=0 -DMAGICKCORE_QUANTUM_DEPTH=16 > -I/temp/imagemagick-temp/include/ImageMagick-6 -L/temp/imagemagick-temp/lib > -lMagickWand-6.Q16 -lMagickCore-6.Q16
I don't see anything in this output that will tell the program where to find the shared library. I would expect this to fail the same way if you were building a C program that used the library. My guess is that you need to either pass -R /temp/imagemagick-temp/lib to the linker, which you can do by setting CGO_LDFLAGS, or you need to add that directory to the list of directories that the dynamic linker searches--see `man ldconfig`. Ian -- You received this message because you are subscribed to the Google Groups "golang-nuts" group. To unsubscribe from this group and stop receiving emails from it, send an email to golang-nuts+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
