Building nginx 1.8.0, linking to local-install of Openssl, 'nginx -V' still reports "built with" *system* openssl. why?

[grantksupport at operamail.com]

I'm building nginx 1.8.0 on linux/64.

I have openssl 1.0.2a built locally, and installed into /usr/local/ssl

	which openssl
		/usr/local/ssl/bin/openssl

I've configured nginx build with

	./configure \
	...
	--with-cc-opt='... -I/usr/local/ssl/include -I/usr/local/include' \
	--with-ld-opt='-L/usr/local/ssl/lib64  -Wl,-rpath,/usr/local/ssl/lib64 -lssl -lcrypto -ldl -lz' \
	--with-http_ssl_module \
	...

checking after build/install, the intended ssl libs ARE correctly linked

	ldd objs/nginx | egrep -i "ssl|crypto"
		libssl.so.1.0.0 => /usr/local/ssl/lib64/libssl.so.1.0.0 (0x00007f9cedd2b000)
		libcrypto.so.1.0.0 => /usr/local/ssl/lib64/libcrypto.so.1.0.0 (0x00007f9ced8e8000)

But 'nginx -V' references BOTH the system-installed OpenSSL 1.0.1k-fips, and 'my' OpenSSL 1.0.2a

	nginx -V
		nginx version: nginx/1.8.0
		built with OpenSSL 1.0.1k-fips 8 Jan 2015 (running with OpenSSL 1.0.2a 19 Mar 2015)
		TLS SNI support enabled
		configure arguments: ...

I want to ensure that the system-installed OpenSSL 1.0.1k-fips is completely UNinvolved.

What needs to change in the build/config to make sure that it's not?

grant