%general-entities; ]> Pkg-config GLIB_CFLAGS="-I/usr/include/glib-2.0 -I/usr/lib64/glib-2.0/include" \ GLIB_LIBS="-lglib-2.0" \ CC="gcc ${BUILD64}" \ ./configure --prefix=/usr \ --with-pc-path=/usr/share/pkgconfig GLIB_CFLAGS="-I/usr/include/glib-2.0 -I/usr/libi64/glib-2.0/include" GLIB_LIBS="-lglib-2.0" Pkg-config no longer comes with Glib and because Pkg-config has not been installed itself it needs to be told where Glib is. On multilib builds the library direcory has been removed from the default search path of pkg-config. Set some environment variables to help set the path correctly in the future: export PKG_CONFIG_PATH32="/usr/lib/pkgconfig" export PKG_CONFIG_PATH64="/usr/lib64/pkgconfig" Export these variables to prevent any issues in the future. cat >> ${CLFS}/root/.bash_profile << EOF export PKG_CONFIG_PATH32="${PKG_CONFIG_PATH32}" export PKG_CONFIG_PATH64="${PKG_CONFIG_PATH64}" EOF