I need to update libdmtx and dmtx-utils on Ubuntu 18.04. Both these packages aren't installed through apt.
I compiled and installed libdmtx with prefix /usr/local/stow/libdmtx-0.7.7 and created all the required symlinks inside /usr/local using stow . So far no problems.
Now I'm trying to compile dmtx-utils but configure stops with this error:
configure: error: Building dmtxread/dmtxwrite requires a working autoconf/pkg-config
this is the search path of pkg-config (if I'm using this command properly):
$ pkg-config --variable pc_path pkg-config
/usr/local/lib/x86_64-linux-gnu/pkgconfig:/usr/local/lib/pkgconfig:/usr/local/share/pkgconfig:/usr/lib/x86_64-linux-gnu/pkgconfig:/usr/lib/pkgconfig:/usr/share/pkgconfig
inside /usr/local/lib/pkgconfig there's a symlink libdmtx.pc pointing to the correct file to the libdmtx's installation path. But I'm not entirely sure this is important.
What causes this error? What can I do?