pixz: enable optional building of manpages

(From OE-Core rev: 2a78c7f8e04ba16a4c97947bcd24fc87617c7c26)

Signed-off-by: Alexander Kanavin <alexander.kanavin@linux.intel.com>
Signed-off-by: Ross Burton <ross.burton@intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

meta/recipes-extended/pixz/pixz_1.0.6.bb

@@ -15,10 +15,11 @@ SRC_URI += "file://936d8068ae19d95260d3058f41dd6cf718101cd6.patch \
 "
 UPSTREAM_CHECK_URI = "https://github.com/vasi/pixz/releases"
 
-EXTRA_OECONF += "--without-manpage"
+PACKAGECONFIG[manpages] = "--with-manpage, --without-manpage, asciidoc-native"
+
 CFLAGS_append_libc-musl = " -D_GNU_SOURCE"
 CACHED_CONFIGUREVARS += "ac_cv_file_src_pixz_1=no"
 
-inherit autotools pkgconfig
+inherit autotools pkgconfig manpages
 
 BBCLASSEXTEND = "native"