>>> Emerging (1 of 1) app-accessibility/pidgin-festival-2.2 to /
 * pidgin-festival-2.2.tar.gz RMD160 SHA1 SHA256 size ;-) ...                       [ ok ]
 * checking ebuild checksums ;-) ...                                                [ ok ]
 * checking auxfile checksums ;-) ...                                               [ ok ]
 * checking miscfile checksums ;-) ...                                              [ ok ]
 * checking pidgin-festival-2.2.tar.gz ;-) ...                                      [ ok ]
/usr/portage/app-accessibility/pidgin-festival/pidgin-festival-2.2.ebuild: line 24: built_with_use: command not found
 * You need to compile net-im/pidgin with USE=gtk
 *
 * ERROR: app-accessibility/pidgin-festival-2.2 failed.
 * Call stack:
 *                    ebuild.sh, line   49:  Called pkg_setup
 *   pidgin-festival-2.2.ebuild, line   26:  Called die
 * The specific snippet of code:
 *              die "Missing gtk USE flag on net-im/pidgin"
 *  The die message:
 *   Missing gtk USE flag on net-im/pidgin
 *
 * If you need support, post the topmost build error, and the call stack if relevant.
 * A complete build log is located at '/var/tmp/portage/app-accessibility/pidgin-festival-2.2/temp/build.log'.
 * The ebuild environment file is located at '/var/tmp/portage/app-accessibility/pidgin-festival-2.2/temp/die.env'.
 *