Open SSL installation on IBM-AIX

1) Export the path of the compiler before installation.

# export PATH=/usr/vac/bin/:$PATH

# which xlc

/usr/vac/bin/xlc

# export cc=xlc

2) Configuring and compiling 

# ./config --prefix=/usr/local/ssl<version> --openssldir=/usr/local/ssl<version>

# make

# make install

3) To check the installed version of OpenSSL

# openssl -v