Lets break down your error message:
Cannot load /usr/local/apache2/modules /mod_cwmp_22.so into server:
ld.so.1: httpd: fatal: relocation error:
ld.so.1 is the runtime dynamic loader. When you start an app that is dynamically linked (and on Solaris EVERYthing is dynamically linked) the dynamic loader needs to bring in all the libraries. It also needs to ensure not only does it have all the files, but that it links up all the references, both code and data.
file /usr/local/apache2 /modules/mod_cwmp_22.so: symbol curl_easy_init: referenced symbol not found
Now, here we go. The dynamic loader brought in the cwmp module, which depends on curl (libcurl). It seems to have found libcurl.so (or else you would have seen a different error) but it can not find the specific symbol. That is: it knows the cwmp module needs the function call curl_easy_init, but it can not find it.
My guess, is you have a libcurl version mismatch. The webserver module was built against one version of libcurl, but now you're trying to run against a different version on your dev box.
Id check for versions of libcurl. maybe do a
strings -a on libcurl on both dev and prod, make sure they match up. There are other tools like readelf that you can use to verify these, but my big guess is that you can copy the libcurl from prod and place it somewhere in dev where you can see it.