Improve build.sh

allow 7z to use multithreading
get default-release-pattern via Makefile and not via awk command

Makefile

@@ -2,7 +2,6 @@ all:
 
 LC_ALL:=C
 LANG:=C
-export LC_ALL LANG
 
 GLUONDIR:=${CURDIR}/src
 
@@ -11,3 +10,6 @@ include $(GLUONDIR)/targets/targets.mk
 
 list-targets:
 	@echo '$(GLUON_TARGETS)'
+
+default-release:
+	@echo '$(DEFAULT_GLUON_RELEASE)'

build.sh

@@ -69,8 +69,7 @@ fi
 [ -n "${VERBOSE}" ] || VERBOSE=0
 
 if [ "${BRANCH}" == "experimental" -a -z "${VERSION}" ] ; then
-	default_release_pattern=$( awk -F" := " '/^DEFAULT_GLUON_RELEASE/ { gsub("shell ", "", $2); print $2; }' ${SITE_DIR}/site.mk )
-	VERSION=$(eval echo ${default_release_pattern})
+	VERSION=$(make default-release)
 	info "EXPERIMENTAL FIRMWARE: using version tag '$VERSION'"
 fi
 
@@ -211,7 +210,7 @@ popd > /dev/null #${CODE_DIR}
 progress "Assembling images.7z ..."
 pushd ${IMAGE_DIR} > /dev/null
 [ -e "${OUTPUT_DIR}/${BRANCH}/images.7z" ] && rm "${OUTPUT_DIR}/${BRANCH}/images.7z"
-7z a -xr!*.manifest "${OUTPUT_DIR}/${BRANCH}/images.7z" ./sysupgrade/* ./factory/*
+7z a -mmt=on -xr!*.manifest "${OUTPUT_DIR}/${BRANCH}/images.7z" ./sysupgrade/* ./factory/*
 [ "$?" -eq "0" ] || abort "Failed to assemble images (did you install p7zip-full?)."
 popd > /dev/null #${IMAGE_DIR}
 
@@ -219,7 +218,7 @@ popd > /dev/null #${IMAGE_DIR}
 progress "Assembling modules.7z ..."
 pushd ${MODULE_DIR} > /dev/null
 [ -e "${OUTPUT_DIR}/${BRANCH}/modules.7z" ] && rm "${OUTPUT_DIR}/${BRANCH}/modules.7z"
-7z a "${OUTPUT_DIR}/${BRANCH}/modules.7z" ./gluon-ffho-${VERSION}
+7z a -mmt=on "${OUTPUT_DIR}/${BRANCH}/modules.7z" ./gluon-ffho-${VERSION} > /dev/null
 [ "$?" -eq "0" ] || abort "Failed to assemble modules."
 popd > /dev/null #${MODULE_DIR}