fontcache: fix postinst for nativesdk case

Both installing the binary into the correct place, and passing that place
to postinst_intercept were missing.

(From OE-Core rev: 9ac7415464b7817aa5cc0c2167ff61f4344660dd)

Signed-off-by: Alexander Kanavin <alex.kanavin@gmail.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

meta/classes/fontcache.bbclass

@@ -20,6 +20,7 @@ if [ -n "$D" ] ; then
 	$INTERCEPT_DIR/postinst_intercept update_font_cache ${PKG} mlprefix=${MLPREFIX} binprefix=${MLPREFIX} \
 		'bindir="${bindir}"' \
 		'libdir="${libdir}"' \
+                'libexecdir="${libexecdir}"' \
 		'base_libdir="${base_libdir}"' \
 		'fontconfigcachedir="${FONTCONFIG_CACHE_DIR}"' \
 		'fontconfigcacheparams="${FONTCONFIG_CACHE_PARAMS}"' \

meta/recipes-graphics/fontconfig/fontconfig_2.12.6.bb

@@ -42,6 +42,12 @@ do_install_append_class-target() {
     ln ${D}${bindir}/fc-cache ${D}${libexecdir}/${MLPREFIX}fc-cache
 }
 
+do_install_append_class-nativesdk() {
+    # duplicate fc-cache for postinstall script
+    mkdir -p ${D}${libexecdir}
+    ln ${D}${bindir}/fc-cache ${D}${libexecdir}/${MLPREFIX}fc-cache
+}
+
 PACKAGES =+ "fontconfig-utils"
 FILES_${PN} =+ "${datadir}/xml/*"
 FILES_fontconfig-utils = "${bindir}/* ${libexecdir}/*"