[gentoo-dev] [PATCH] multilib-minimal.eclass: allow relative paths to $S for DOCS variable wrt #468092

[hasufell]

currently default_src_install is carried out in $BUILD_DIR and not in $S

that means people have to do something like this:
DOCS=( "${S}"/ChangeLog{,.libffi,.libgcj,.v1} "${S}"/README )

The attached patch is a bit ugly, but I don't see a better way. It will
allow:
DOCS=( ChangeLog{,.libffi,.libgcj,.v1} README )

--- eclass/multilib-minimal.eclass
+++ eclass/multilib-minimal.eclass
@@ -84,7 +84,7 @@
 		if declare -f multilib_src_install >/dev/null ; then
 			multilib_src_install
 		else
-			default_src_install	
+			DOCS="" default_src_install
 		fi
 		multilib_prepare_wrappers
 		multilib_check_headers
@@ -96,4 +96,18 @@
 	if declare -f multilib_src_install_all >/dev/null ; then
 		multilib_src_install_all
 	fi
+
+	# install docs from ${S} as basedir, see #468092
+	# this is synced with __eapi4_src_install
+	if ! declare -p DOCS &>/dev/null ; then
+		local d
+		for d in README* ChangeLog AUTHORS NEWS TODO CHANGES \
+				THANKS BUGS FAQ CREDITS CHANGELOG ; do
+			[[ -s "${d}" ]] && dodoc "${d}"
+		done
+	elif [[ $(declare -p DOCS) == "declare -a "* ]] ; then
+		dodoc "${DOCS[@]}"
+	else
+		dodoc ${DOCS}
+	fi
 }