Attempt to fix the autotools linking issue on jenkins.
The jenkins autotools build has never worked because we try to build against uninstalled versions of the opus and ogg libraries, whose pkg-config files export a static library. This works fine for executables, but libtool seemingly can't link a dynamic library against a static library. We could change the -uninstalled.pc files to reference the libtool versions of the libraries, but that breaks the unix makefile builds, which of course don't use libtool. As a work around, write out our own versions of the pc files and use those to reference the file we need. Also sets -x on both continuous integration scripts so it's more clear what steps are being applied.