diff --git a/subr/pkg_fetch_download.subr b/subr/pkg_fetch_download.subr
index 43f4388..188c7f7 100644
--- a/subr/pkg_fetch_download.subr
+++ b/subr/pkg_fetch_download.subr
@@ -2,18 +2,47 @@
 # set +o errexit -o noglob -o nounset is assumed.
 #
 
+pkg_fetch_download_dlcache_subdir() {
+	if [ -n "${PKG_INHERIT_FROM:-}" ]\
+	&& ! [ -e "${BUILD_DLCACHEDIR}/${PKG_NAME}" ]\
+	&& ! rtl_fileop ln_symbolic "${PKG_INHERIT_FROM}" "${BUILD_DLCACHEDIR}/${PKG_NAME}"; then
+		return 1;
+	elif [ -z "${PKG_INHERIT_FROM:-}" ]\
+	&& ! [ -e "${BUILD_DLCACHEDIR}/${PKG_NAME}" ]\
+	&& ! rtl_fileop mkdir "${BUILD_DLCACHEDIR}/${PKG_NAME}"; then
+		return 1;
+	else
+		return 0;
+	fi;
+};
+
 pkg_fetch_download() {
+	local _fname="";
+
 	if [ "${ARG_FETCH_FORCE:-}" != "offline" ]; then
 		if [ -n "${PKG_URL:-}" ]; then
-			if ! rtl_fetch_url_wget	\
-					"${PKG_URL}" "${PKG_SHA256SUM}" "${BUILD_DLCACHEDIR}"\
+			if ! pkg_fetch_download_dlcache_subdir; then
+				return 1;
+			elif ! rtl_fetch_url_wget	\
+					"${PKG_URL}" "${PKG_SHA256SUM}" "${BUILD_DLCACHEDIR}/${PKG_NAME}"\
 					"${PKG_FNAME}" "${PKG_NAME}" "${PKG_MIRRORS:-}"; then
 				return 1;
+			else
+				for _fname in $(find					\
+						"${BUILD_DLCACHEDIR}/${PKG_NAME}"	\
+						-type f					\
+						-not -name "${PKG_FNAME}"		\
+						-not -name "${PKG_FNAME}.fetched"); do
+					rtl_log_msg notice "Deleting redundant file \`%s' for package \`%s'." "${_fname}" "${PKG_NAME}";
+					rtl_fileop rm "${_fname}";
+				done;
 			fi;
 		fi;
 		if [ -n "${PKG_URLS_GIT:-}" ]; then
-			if ! rtl_fetch_urls_git	\
-					"${BUILD_DLCACHEDIR}" "${DEFAULT_GIT_ARGS}" "${PKG_BASE_DIR}"\
+			if ! pkg_fetch_download_dlcache_subdir; then
+				return 1;
+			elif ! rtl_fetch_urls_git	\
+					"${BUILD_DLCACHEDIR}/${PKG_NAME}" "${DEFAULT_GIT_ARGS}" "${PKG_BASE_DIR}"\
 					"${PKG_NAME}" "${PKG_MIRRORS_GIT:-}" ${PKG_URLS_GIT}; then
 				return 1;
 			fi;
diff --git a/subr/pkg_fetch_extract.subr b/subr/pkg_fetch_extract.subr
index e91e7a6..b86c490 100644
--- a/subr/pkg_fetch_extract.subr
+++ b/subr/pkg_fetch_extract.subr
@@ -19,11 +19,11 @@ pkg_fetch_extract() {
 			rtl_fileop cd "${_oldpwd}"; return 1;
 		else
 			case "$(pkgp_fetch_extract_type "${PKG_NAME}")" in
-			bz2)	bunzip2 -d < "${BUILD_DLCACHEDIR}/${PKG_FNAME}" | tar -C "${PKG_BASE_DIR}" -xf -; ;;
-			gz)	gunzip -d < "${BUILD_DLCACHEDIR}/${PKG_FNAME}" | tar -C "${PKG_BASE_DIR}" -xf -; ;;
-			lz)	lzip -d < "${BUILD_DLCACHEDIR}/${PKG_FNAME}" | tar -C "${PKG_BASE_DIR}" -xf -; ;;
-			xz)	xz -d < "${BUILD_DLCACHEDIR}/${PKG_FNAME}" | tar -C "${PKG_BASE_DIR}" -xf -; ;;
-			*)	tar -C "${PKG_BASE_DIR}" -xf "${BUILD_DLCACHEDIR}/${PKG_FNAME}"; ;;
+			bz2)	bunzip2 -d < "${BUILD_DLCACHEDIR}/${PKG_NAME}/${PKG_FNAME}" | tar -C "${PKG_BASE_DIR}" -xf -; ;;
+			gz)	gunzip -d < "${BUILD_DLCACHEDIR}/${PKG_NAME}/${PKG_FNAME}" | tar -C "${PKG_BASE_DIR}" -xf -; ;;
+			lz)	lzip -d < "${BUILD_DLCACHEDIR}/${PKG_NAME}/${PKG_FNAME}" | tar -C "${PKG_BASE_DIR}" -xf -; ;;
+			xz)	xz -d < "${BUILD_DLCACHEDIR}/${PKG_NAME}/${PKG_FNAME}" | tar -C "${PKG_BASE_DIR}" -xf -; ;;
+			*)	tar -C "${PKG_BASE_DIR}" -xf "${BUILD_DLCACHEDIR}/${PKG_NAME}/${PKG_FNAME}"; ;;
 			esac;
 			if [ "${?}" -ne 0 ]; then
 				rtl_fileop cd "${_oldpwd}"; return 1;
diff --git a/vars/gcc.vars b/vars/gcc.vars
index c7e094a..50794c9 100644
--- a/vars/gcc.vars
+++ b/vars/gcc.vars
@@ -122,11 +122,16 @@ pkgp_gcc_stage1_all() {
 		return 1;
 	fi;
 	if ! ex_pkg_state_test "${PKG_NAME}" fetch "${_restart_at}"; then
-		rtl_fetch_urls_git							\
-			"${BUILD_DLCACHEDIR}" "${DEFAULT_GIT_ARGS}" "${PKG_BASE_DIR}"	\
-			"${PKG_NAME}" "${PKG_MIRRORS_GIT:-}"				\
-			"cbb-gcc-${PKG_VERSION}=${PKG_GITROOT}/cbb/cbb-gcc-${PKG_VERSION}" || return 1;
-		pkgp_gcc_state_set "fetch" -"patch";
+		if ! pkg_fetch_download_dlcache_subdir; then
+			return 1;
+		elif ! rtl_fetch_urls_git									\
+				"${BUILD_DLCACHEDIR}/${PKG_NAME}" "${DEFAULT_GIT_ARGS}" "${PKG_BASE_DIR}"	\
+				"${PKG_NAME}" "${PKG_MIRRORS_GIT:-}"						\
+				"cbb-gcc-${PKG_VERSION}=${PKG_GITROOT}/cbb/cbb-gcc-${PKG_VERSION}"; then
+			return 1;
+		else
+			pkgp_gcc_state_set "fetch" -"patch";
+		fi;
 	fi;
 	if ! ex_pkg_state_test "${PKG_NAME}" patch "${_restart_at}"; then
 		if [ -e "${MIDIPIX_BUILD_PWD}/patches/${PKG_NAME}.local.patch" ]; then
@@ -213,12 +218,17 @@ pkg_gcc_full_all() {
 	export MAKE="make LIBTOOL=slibtool ${_vis_hide}";
 	pkgp_gcc_build_dir "cbb-gcc-${PKG_VERSION}" native;
 	if ! ex_pkg_state_test "${PKG_NAME}" fetch "${_restart_at}"; then
-		rtl_fetch_urls_git					\
-			"${BUILD_DLCACHEDIR}" "${DEFAULT_GIT_ARGS}"	\
-			"${PKG_BASE_DIR}" "${PKG_NAME}"			\
-			"${PKG_MIRRORS_GIT:-}"				\
-			"cbb-gcc-${PKG_VERSION}=${PKG_GITROOT}/cbb/cbb-gcc-${PKG_VERSION}" || return 1;
-		pkgp_gcc_state_set "fetch" -"patch";
+		if ! pkg_fetch_download_dlcache_subdir; then
+			return 1;
+		elif ! rtl_fetch_urls_git						\
+				"${BUILD_DLCACHEDIR}/${PKG_NAME}" "${DEFAULT_GIT_ARGS}"	\
+				"${PKG_BASE_DIR}" "${PKG_NAME}"				\
+				"${PKG_MIRRORS_GIT:-}"					\
+				"cbb-gcc-${PKG_VERSION}=${PKG_GITROOT}/cbb/cbb-gcc-${PKG_VERSION}"; then
+			return 1;
+		else
+			pkgp_gcc_state_set "fetch" -"patch";
+		fi;
 	fi;
 	if ! ex_pkg_state_test "${PKG_NAME}" patch "${_restart_at}"; then
 		if [ -e "${MIDIPIX_BUILD_PWD}/patches/${PKG_NAME}.local.patch" ]; then
diff --git a/vars/python2.vars b/vars/python2.vars
index 7bdcd20..67a39d0 100644
--- a/vars/python2.vars
+++ b/vars/python2.vars
@@ -5,7 +5,7 @@
 pkg_python2_fetch_download() {
 	if ! pkg_fetch_download\
 	|| ! rtl_fileop rm "${PKG_BASE_DIR}/sbpython2"\
-	|| ! rtl_fetch_urls_git "${BUILD_DLCACHEDIR}" "${DEFAULT_GIT_ARGS}" "${PKG_BASE_DIR}/build" "${PKG_NAME}" "${PKG_MIRRORS_GIT:-}" "sbpython2=${DEFAULT_GITROOT}/python/sbpython2@main"\
+	|| ! rtl_fetch_urls_git "${BUILD_DLCACHEDIR}/${PKG_NAME}" "${DEFAULT_GIT_ARGS}" "${PKG_BASE_DIR}/build" "${PKG_NAME}" "${PKG_MIRRORS_GIT:-}" "sbpython2=${DEFAULT_GITROOT}/python/sbpython2@main"\
 	|| ! ex_pkg_state_set "${PKG_NAME}" "fetch_download" "-fetch_extract"; then
 		return 1;
 	fi;
diff --git a/vars/python2_host.vars b/vars/python2_host.vars
index 0cb83e2..8222aac 100644
--- a/vars/python2_host.vars
+++ b/vars/python2_host.vars
@@ -5,7 +5,7 @@
 pkg_python2_host_fetch_download() {
 	if ! pkg_fetch_download\
 	|| ! rtl_fileop rm "${PKG_BASE_DIR}/sbpython2"\
-	|| ! rtl_fetch_urls_git "${BUILD_DLCACHEDIR}" "${DEFAULT_GIT_ARGS}" "${PKG_BASE_DIR}/build" "${PKG_NAME}" "${PKG_MIRRORS_GIT:-}" "sbpython2=${DEFAULT_GITROOT}/python/sbpython2@main"\
+	|| ! rtl_fetch_urls_git "${BUILD_DLCACHEDIR}/${PKG_NAME}" "${DEFAULT_GIT_ARGS}" "${PKG_BASE_DIR}/build" "${PKG_NAME}" "${PKG_MIRRORS_GIT:-}" "sbpython2=${DEFAULT_GITROOT}/python/sbpython2@main"\
 	|| ! rtl_fileop cp "../sbpython2/project/config/cfgdefs.sh" "../sbpython2/project/config/cfgdefs.sh.orig"\
 	|| ! sed -i"" -e"s/-ltinfo/&w/" -e"s/mb_ncurses_libs='\([^']*\)'/mb_ncurses_libs='\1 -ltinfow'/" ../sbpython2/project/config/cfgdefs.sh\
 	|| ! sed -i"" -e'108a\
diff --git a/vars/python3.vars b/vars/python3.vars
index a58325c..3e3bd32 100644
--- a/vars/python3.vars
+++ b/vars/python3.vars
@@ -5,7 +5,7 @@
 pkg_python3_fetch_download() {
 	if ! pkg_fetch_download\
 	|| ! rtl_fileop rm "${PKG_BASE_DIR}/sbpython3"\
-	|| ! rtl_fetch_urls_git "${BUILD_DLCACHEDIR}" "${DEFAULT_GIT_ARGS}" "${PKG_BASE_DIR}/build" "${PKG_NAME}" "${PKG_MIRRORS_GIT:-}" "sbpython3=${DEFAULT_GITROOT}/python/sbpython3@main"\
+	|| ! rtl_fetch_urls_git "${BUILD_DLCACHEDIR}/${PKG_NAME}" "${DEFAULT_GIT_ARGS}" "${PKG_BASE_DIR}/build" "${PKG_NAME}" "${PKG_MIRRORS_GIT:-}" "sbpython3=${DEFAULT_GITROOT}/python/sbpython3@main"\
 	|| ! ex_pkg_state_set "${PKG_NAME}" "fetch_download" "-fetch_extract"; then
 		return 1;
 	fi;
diff --git a/vars/python3_host.vars b/vars/python3_host.vars
index 05b58e2..df70b7b 100644
--- a/vars/python3_host.vars
+++ b/vars/python3_host.vars
@@ -5,7 +5,7 @@
 pkg_python3_host_fetch_download() {
 	if ! pkg_fetch_download\
 	|| ! rtl_fileop rm "${PKG_BASE_DIR}/sbpython3"\
-	|| ! rtl_fetch_urls_git "${BUILD_DLCACHEDIR}" "${DEFAULT_GIT_ARGS}" "${PKG_BASE_DIR}/build" "${PKG_NAME}" "${PKG_MIRRORS_GIT:-}" "sbpython3=${DEFAULT_GITROOT}/python/sbpython3@main"\
+	|| ! rtl_fetch_urls_git "${BUILD_DLCACHEDIR}/${PKG_NAME}" "${DEFAULT_GIT_ARGS}" "${PKG_BASE_DIR}/build" "${PKG_NAME}" "${PKG_MIRRORS_GIT:-}" "sbpython3=${DEFAULT_GITROOT}/python/sbpython3@main"\
 	|| ! rtl_fileop cp "../sbpython3/project/config/cfgdefs.sh" "../sbpython3/project/config/cfgdefs.sh.orig"\
 	|| ! sed -i"" -e"s/-ltinfo/&w/" -e"s/mb_ncurses_libs='\([^']*\)'/mb_ncurses_libs='\1 -ltinfow'/" "../sbpython3/project/config/cfgdefs.sh"\
 	|| ! sed -i"" -e'108a\