checking for x86_64-pc-linux-gnu-pkg-config... no checking for pkg-config... no checking for gmpc... configure: error: The pkg-config script could not be found or is too old. Make sure it is in your PATH or set the PKG_CONFIG environment variable to the full path to pkg-config. Alternatively you may set the gmpc_CFLAGS and gmpc_LIBS environment variables to avoid the need to call pkg-config. See the pkg-config man page for more details. To get pkg-config, see <http://www.freedesktop.org/software/pkgconfig>. See `config.log' for more details. !!! Please attach the following file when filing a report to bugs.gentoo.org: !!! /var/tmp/portage/gmpc-0.12.0-r1/work/gmpc-0.12.0/config.log !!! ERROR: media-sound/gmpc-0.12.0-r1 failed.
Thanks, fixed now.