Getting an error when using 'make' command (installing aircrack-ng on Ubuntu 12.04)
Solution 1:
The error says you don't have ssl header files. So just install them.
sudo apt-get install libssl-dev
Solution 2:
Download openssl-1.0.1c.tar.gz and build it twice.
./config --prefix=/usr/local --openssldir=/usr/local/ssl
make && make install
./config shared --prefix=/usr/local --openssldir=/usr/local/ssl
make clean
make && make install
In the first time:it will build the *.so lib file.
The second ,it will build the include *.h file.
It's useful.