1. couchbase server, the CURL_CONFIG and ICU_CONFIG did exposed in the configure help list.
diff --git a/configure.ac b/configure.ac
index 797c188..acb380a 100644
--- a/configure.ac
+++ b/configure.ac
@@ -452,8 +452,11 @@ fi

 AC_ARG_VAR([ERL], [path to the `erl' executable])
 AC_ARG_VAR([ERLC], [path to the `erlc' executable])
+AC_ARG_VAR([ICU_CONFIG], [path to the `icu-config' executable])
+AC_ARG_VAR([CURL_CONFIG], [path to the `curl-config' executable])
 AC_ARG_VAR([HELP2MAN_EXECUTABLE], [path to the `help2man' program])

+
 if test -n "$HELP2MAN_EXECUTABLE"; then
     help2man_enabled=true
 else

2. couchbase server, if user specifies curl or icu with a non-standard location, the location shall be passed to compiler as rpath..


3. libcouchbase, make install didn't install the memcached header files into prefix.