[aur-general] new pkg error

[nathan owe.]

The following packages will be built:
==> linkage
 Do you want to continue? (Y/n): y
==> Building linkage [package 1 of 1] ... 
==> Making package: linkage 0.2.0-1 i686 (Sun May 31 18:12:04 CDT 2009)
==> Checking Runtime Dependencies...
==> Checking Buildtime Dependencies...
==> Retrieving Sources...
  -> Found linkage-0.2.0.tar.gz in build dir
==> Validating source files with md5sums...
    linkage-0.2.0.tar.gz ... Passed
==> Extracting Sources...
  -> bsdtar -x -f linkage-0.2.0.tar.gz
==> Removing existing pkg/ directory...
==> Entering fakeroot environment...
==> Starting build()...
checking for a BSD-compatible install... /bin/install -c
checking whether build environment is sane... yes
checking for a thread-safe mkdir -p... /bin/mkdir -p
checking for gawk... gawk
checking whether make sets $(MAKE)... yes
checking for pkg-config... /usr/bin/pkg-config
checking pkg-config is at least version 0.9.0... yes
checking for GTKMM... yes
checking for LIBGLADE... yes
checking for GCONFMM... yes
checking for GTHREAD... yes
checking for LIBTORRENT... configure: error: Package requirements
(libtorrent >= 0.13) were not met:

No package 'libtorrent' found

Consider adjusting the PKG_CONFIG_PATH environment variable if you
installed software in a non-standard prefix.

Alternatively, you may set the environment variables LIBTORRENT_CFLAGS
and LIBTORRENT_LIBS to avoid the need to call pkg-config.
See the pkg-config man page for more details.

make: *** No targets specified and no makefile found.  Stop.
==> ERROR: Build Failed.
    Aborting...
==> Installing linkage-0.2.0-1-i686.pkg.tar.gz [package 1 of
1] ...makepkg failed! ==> ERROR: I was unable to install these
packages: linkage