autotools: inherit LIBTOOL_PATCH for host packages

When FOO_LIBTOOL_PATCH is defined, assume that the same value should
be used for HOST_FOO_LIBTOOL_PATCH.

Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Signed-off-by: Peter Korsgaard <jacmet@sunsite.dk>

package/Makefile.autotools.in

@@ -49,6 +49,14 @@ ifndef $(2)_SUBDIR
  endif
 endif
 
+ifndef $(2)_LIBTOOL_PATCH
+ ifdef $(3)_LIBTOOL_PATCH
+  $(2)_LIBTOOL_PATCH = $($(3)_LIBTOOL_PATCH)
+ else
+  $(2)_LIBTOOL_PATCH ?= YES
+ endif
+endif
+
 $(2)_CONF_ENV			?=
 $(2)_CONF_OPT			?=
 $(2)_MAKE			?= $(MAKE)
@@ -56,7 +64,6 @@ $(2)_MAKE_ENV			?=
 $(2)_MAKE_OPT			?=
 $(2)_AUTORECONF			?= NO
 $(2)_AUTORECONF_OPT		?=
-$(2)_LIBTOOL_PATCH		?= YES
 $(2)_USE_CONFIG_CACHE           ?= $(if $(BR2_CONFIG_CACHE),YES,NO)
 $(2)_INSTALL_STAGING_OPT	?= DESTDIR=$$(STAGING_DIR) install
 ifeq ($(BR2_ENABLE_DEBUG),y)