So today I wanted to install openssl 1.0.1F on my centos boxes, usually I will wait for an RPM, or just build from source. Today, I did a little of both using rpmbuild utility. You will need to have the rpmbuild utilities installed.
First download the source. What i did different for a 64bit build was I first untar'ed the file, then ran this against the spec file.
sed -i 's@/usr/lib@/usr/lib64@g' openssl.spec
then ran
tar zcvf ./openssl-1.0.1fa.tar.gz openssl-1.0.1f/
rpmbuild -ts ./openssl-1.0.1f.tar.gz
Which will creates the source rpm. Then run
rpmbuild -tb ./openssl-1.0.1fa.tar.gz
Which will create these packages:
openssl-1.0.1f-1.x86_64.rpm openssl-devel-1.0.1f-1.x86_64.rpm
openssl-debuginfo-1.0.1f-1.x86_64.rpm openssl-doc-1.0.1f-1.x86_64.rpm
then if you eff up an install.
cd /usr/lib64/
sudo ln -s libssl.so.1.0.0 libssl.so.10
sudo ln -s libcrypto.so.1.0.0 libcrypto.so.10 Then run yum update to make sure it worked. 
