Add grpc to build

Also:
* fix typo in rpm post install script
* for RPM, tell CPack to exclude intermediate directories
  in rpm file

Change-Id: I9dbb4901298d3699e092b53b339f5cb1d77b4edb
(cherry picked from commit e894cfa757aae8343afb373ce4ae60a1aa950a91)

src/DEBIAN_postinst.in

@@ -1,6 +1,7 @@
 #/bin/bash
 
 RDC_LIB_DIR=@RDC_CLIENT_ROOT_PATH@/rdc/lib
+GRPC_LIB_DIR=/usr/grpc/lib
 
 # This will return 0 if an id is created and non-zero if
 # it already exists
@@ -10,7 +11,8 @@ do_create_rdc_user() {
 
 # librdc_client.so
 do_ldconfig() {
-    echo $RDC_LIB_DIR > /etc/ld.so.conf.d/x86_64-librdc_client.conf && ldconfig
+    echo "$RDC_LIB_DIR" > /etc/ld.so.conf.d/x86_64-librdc_client.conf
+    echo "$GRPC_LIB_DIR" >> /etc/ld.so.conf.d/x86_64-librdc_client.conf && ldconfig
 
     do_create_rdc_user
 

src/RPM_rpm_post.in

@@ -1,10 +1,16 @@
 #!/bin/bash
 
 RDC_LIB_DIR=@RDC_CLIENT_ROOT_PATH@/rdc/lib
+GRPC_LIB_DIR=/usr/grpc/lib
+
 do_create_rdc_user() {
     useradd -r -s /bin/nologin rdc
 }
 
-do_create_rpc_user
-echo -e "${RDC_LIB_DIR}\n${RDC_LIB_DIR}64" > /etc/ld.so.conf.d/x86_64-librdc_client.conf && ldconfig
+do_create_rdc_user
 
+echo "$GRPC_LIB_DIR" > /etc/ld.so.conf.d/x86_64-librdc_client.conf
+echo "$GRPC_LIB_DIR"64 >> /etc/ld.so.conf.d/x86_64-librdc_client.conf
+echo "$RDC_LIB_DIR" >> /etc/ld.so.conf.d/x86_64-librdc_client.conf
+echo "$RDC_LIB_DIR"64 >> /etc/ld.so.conf.d/x86_64-librdc_client.conf
+ldconfig