Edit File: xt.pc
prefix=/usr exec_prefix=/usr libdir=/usr/lib64 includedir=/usr/include appdefaultdir=/usr/share/X11/app-defaults datarootdir=${prefix}/share errordbdir=/usr/share/X11 Name: Xt Description: X Toolkit Library Version: 1.1.5 Requires: xproto x11 Requires.private: ice sm Cflags: -I${includedir} Libs: -L${libdir} -lXt