package/coreutils: introduce a host variant

More and more packages are now depending on ln --relative, some require
realpath, both of which only got introduced in "recent" versions of
coreutils; older distros had a separate realpath, though, but that is
not in the list of our required dependencies, and was not installed by
default.

So, we introduce a minimal host variant of coreutils to provide those
programs.

Signed-off-by: Yann E. MORIN <yann.morin.1998@free.fr>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>

package/coreutils/coreutils.mk

@@ -148,4 +148,18 @@ endef
 endif
 COREUTILS_POST_INSTALL_TARGET_HOOKS += COREUTILS_FIX_CHROOT_LOCATION
 
+# Explicitly install ln and realpath, which we *are* insterested in.
+# A lot of other programs still get installed, however, but disabling
+# them does not gain much at build time, and is a loooong list that is
+# difficult to maintain...
+HOST_COREUTILS_CONF_OPTS = \
+	--disable-acl \
+	--disable-libcap \
+	--disable-rpath \
+	--disable-single-binary \
+	--disable-xattr \
+	--without-gmp \
+	--enable-install-program=ln,realpath
+
 $(eval $(autotools-package))
+$(eval $(host-autotools-package))