On Windows, consider building with [mingw-w64](http://mingw-w64.org/).
Build script will try to find mingw in `PATH` environment variable to provide
Cargo with location where openssl libs from mingw-w64 package may be found.
If you followed guide [Building on Windows](https://github.com/rust-lang/rust#building-on-windows)
from rust repo, then you should have [MSYS2](http://msys2.github.io/) with
`mingw-w64-openssl` installed as part of `mingw-w64-x86_64-toolchain`
(or `mingw-w64-i686-toolchain`) package.
mingw-w64 can be easily installed by using [MSYS2](http://msys2.github.io/). Install MSYS2 according to the instructions, and then, from an MSYS2 Shell, install mingw-w64:
32-bit:
```bash
pacman -S mingw-w64-i686-gcc
```
64-bit
```bash
pacman -S mingw-w64-x86_64-gcc
```
and then install the mingw-w64 toolchain.
32-bit:
```bash
pacman -S mingw-w64-x86_64-toolchain
```
64-bit:
```bash
pacman -S mingw-w64-i686-toolchain
```
Alternatively, install OpenSSL from [here][1]. Cargo will not be able to find OpenSSL if it's
installed to the default location. You can either copy the `include/openssl`
