Hotfix/sangshuduo/td 10863 blm3 service centos7 (#8592)

* [TD-10863]<fix>: blm3 service on centos7

* fix cmake define to support build_http better

* install for libtaos required by go build

* fix blm3 service install seq

packaging/rpm/tdengine.spec

@@ -158,17 +158,12 @@ if pidof taosd &> /dev/null; then
 fi
 # if taos.cfg already exist, remove it
 if [ -f %{cfg_install_dir}/taos.cfg ]; then
-    ${csudo} rm -f %{homepath}/cfg/taos.cfg   || :
+    ${csudo} rm -f %{cfg_install_dir}/cfg/taos.cfg   || :
 fi
 
 # if blm.toml already exist, remove it
 if [ -f %{cfg_install_dir}/blm.toml ]; then
-    ${csudo} rm -f %{homepath}/cfg/blm.toml || :
-fi
-
-# if blm3.service already softlink, remove it
-if [ -f %{cfg_install_dir}/blm3.service ]; then
-    ${csudo} rm -f %{homepath}/cfg/blm3.service || :
+    ${csudo} rm -f %{cfg_install_dir}/cfg/blm.toml || :
 fi
 
 # there can not libtaos.so*, otherwise ln -s  error

packaging/tools/post.sh

@@ -467,8 +467,7 @@ function install_service_on_systemd() {
 }
 
 function install_blm3_service() {
-    [ -f ${script_dir}/cfg/blm3.service ] &&\
-        ${csudo} cp ${script_dir}/cfg/blm3.service ${service_config_dir}/
+    [ -f ${cfg_dir}/blm3.service ] && ${csudo} cp ${cfg_dir}/blm3.service ${service_config_dir}
 }
 
 function install_service() {
@@ -501,10 +500,10 @@ function install_TDengine() {
     install_lib
     install_avro_lib
     install_bin
-    install_service
-    install_blm3_service
     install_config
     install_blm3_config
+    install_blm3_service
+    install_service
 
     # Ask if to start the service
     #echo