The xlib_libfontenc configure.ac uses PKG_CHECK_MODULES(), but the
Buildroot package does not have a dependency on host-pkgconf. This
causes a build failure with per-package host/target folders, or if one
builds just with "make xlib_libfontenc", which is why it was never
detected by the autobuilders.
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>