diff --git a/release/copy_headers.sh b/release/copy_headers.sh
index 3f754ce..ce281f3 100755
--- a/release/copy_headers.sh
+++ b/release/copy_headers.sh
@@ -47,5 +47,6 @@ copy_module "libxml"         "myXml.h"
 copy_module "libxml"         "tinyxml2.h"
 copy_module "libcmd"         "myCmd.h"
 copy_module "libdatacenter"  "myDatacenter.h"
+copy_module "libcomm"       "myComm.h"
 
 echo "=== done ==="
diff --git a/release/makefile b/release/makefile
index 896dd86..0466925 100644
--- a/release/makefile
+++ b/release/makefile
@@ -1,8 +1,8 @@
 SUBDIRS := ./src
 define make_subdir
-	@for d in $(SUBDIRS); do [ -f "$$d/makefile" ] && (cd "$$d" && make -f makefile $1) || true; done
+	for d in $(SUBDIRS); do [ -f "$$d/makefile" ] && (cd "$$d" && make -f makefile $1) || true; done
 endef
 .PHONY: all clean rebuild
-all:; $(call make_subdir,all)
+all:; @$(call make_subdir,all)
 clean:; @echo "clean..."; $(call make_subdir,clean)
 rebuild: clean all
diff --git a/release/src/makefile b/release/src/makefile
index f82f724..b981499 100644
--- a/release/src/makefile
+++ b/release/src/makefile
@@ -1,8 +1,8 @@
 SUBDIRS := ./public
 define make_subdir
-	@for d in $(SUBDIRS); do [ -f "$$d/makefile" ] && (cd "$$d" && make -f makefile $1) || true; done
+	for d in $(SUBDIRS); do [ -f "$$d/makefile" ] && (cd "$$d" && make -f makefile $1) || true; done
 endef
 .PHONY: all clean rebuild
-all:; $(call make_subdir,all)
-clean:; $(call make_subdir,clean)
+all:; @$(call make_subdir,all)
+clean:; @$(call make_subdir,clean)
 rebuild: clean all
diff --git a/release/src/public/makefile b/release/src/public/makefile
index e9825e3..cbf5aef 100644
--- a/release/src/public/makefile
+++ b/release/src/public/makefile
@@ -1,10 +1,10 @@
-SUBDIRS := ./liblist ./libfunc ./liblog ./libmd5 ./libcJSON ./libmy_xxhash ./libtask ./libxml ./libcmd ./libdatacenter
+SUBDIRS := ./liblist ./libfunc ./liblog ./libmd5 ./libcJSON ./libmy_xxhash ./libtask ./libxml ./libcmd ./libdatacenter ./libcomm
 define make_subdir
-	@for d in $(SUBDIRS); do [ -f "$$d/makefile" ] && (cd "$$d" && make -f makefile $1) || true; done
+	for d in $(SUBDIRS); do [ -f "$$d/makefile" ] && (cd "$$d" && make -f makefile $1) || true; done
 endef
 ROOT_DIR := $(realpath $(CURDIR)/../../..)
 .PHONY: all clean rebuild headers
 headers:; @cd $(ROOT_DIR) && ./release/copy_headers.sh
-all: headers; $(call make_subdir,all)
-clean:; $(call make_subdir,clean)
+all: headers; @$(call make_subdir,all)
+clean:; @$(call make_subdir,clean)
 rebuild: clean all