Include information about development packages

Building the crate on a system without the development packages of openssl installed fails.
Issue #649 suggests to install those packages, which resolves the problem.
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Thomas Eizinger 2018-04-12 08:42:29 +10:00 committed by GitHub
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@ -133,6 +133,9 @@ Could not find directory of OpenSSL installation, and this `-sys` crate cannot
proceed without this knowledge. If OpenSSL is installed and this crate had proceed without this knowledge. If OpenSSL is installed and this crate had
trouble finding it, you can set the `OPENSSL_DIR` environment variable for the trouble finding it, you can set the `OPENSSL_DIR` environment variable for the
compilation process. compilation process.
Make sure you also have the development packages of openssl installed.
For example, `libssl-dev` on Ubuntu or `openssl-devel` on Fedora.
If you're in a situation where you think the directory *should* be found If you're in a situation where you think the directory *should* be found
automatically, please open a bug at https://github.com/sfackler/rust-openssl automatically, please open a bug at https://github.com/sfackler/rust-openssl