for msvc abi builds, allow use of openssl libs from vcpkg (6b50d894) · Commits · Public Repositories / Rust Openssl

README.md

+23 −2

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		@@ -70,7 +70,11 @@ automatically detected.

		### Windows MSVC

		On MSVC it's unfortunately not always a trivial process acquiring OpenSSL.
		On MSVC it's unfortunately not always a trivial process acquiring OpenSSL. A couple of possibilities
		are downloading precompiled binaries for OpenSSL 1.1.0, or installing OpenSSL 1.0.2 using vcpkg.

		#### Installing OpenSSL 1.1.0 using precompiiled binaries

		Perhaps the easiest way to do this right now is to download [precompiled
		binaries] and install them on your system. Currently it's recommended to
		install the 1.1.0 (non-light) installation if you're choosing this route.
		@@ -84,7 +88,24 @@ installation via an environment variable:
		set OPENSSL_DIR=C:\OpenSSL-Win64
		```

		Note that this OpenSSL distribution does not ship with any root certificates.
		Now you will need to [install root certificates.](#acquiring-root-certificates)

		#### Installing OpenSSL 1.0.2 using vcpkg

		Install [vcpkg](https://github.com/Microsoft/vcpkg), and install the OpenSSL port like this:

		```Batchfile
		vcpkg install openssl:x64-windows
		set VCPKG_ROOT=c:\path\to\vcpkg\installation
		cargo build
		```

		For more information see the vcpkg build helper [documentation](http://docs.rs/vcpkg).
		To finsh setting up OpenSSL you will need to [install root certificates.](#acquiring-root-certificates)

		#### Acquiring Root Certificates

		Neither of the above OpenSSL distributions ship with any root certificates.
		So to make requests to servers on the internet, you have to install them
		manually. Download the [cacert.pem file from here], copy it somewhere safe
		(`C:\OpenSSL-Win64\certs` is a good place) and point the `SSL_CERT_FILE`

appveyor.yml

+9 −2

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		@@ -20,10 +20,13 @@ environment:
		BITS: 32
		OPENSSL_VERSION: 1_0_2L
		OPENSSL_DIR: C:\OpenSSL
		- TARGET: x86_64-pc-windows-msvc
		VCPKG_DEFAULT_TRIPLET: x64-windows
		install:
		# install OpenSSL
		- ps: Start-FileDownload "http://slproweb.com/download/Win${env:BITS}OpenSSL-${env:OPENSSL_VERSION}.exe"
		- Win%BITS%OpenSSL-%OPENSSL_VERSION%.exe /SILENT /VERYSILENT /SP- /DIR="C:\OpenSSL"
		- mkdir C:\OpenSSL
		- ps: if (Test-Path env:OPENSSL_VERSION) { Start-FileDownload "http://slproweb.com/download/Win${env:BITS}OpenSSL-${env:OPENSSL_VERSION}.exe" }
		- if defined OPENSSL_VERSION Win%BITS%OpenSSL-%OPENSSL_VERSION%.exe /SILENT /VERYSILENT /SP- /DIR="C:\OpenSSL"
		- appveyor DownloadFile https://curl.haxx.se/ca/cacert.pem -FileName C:\OpenSSL\cacert.pem

		# Install Rust
		@@ -33,6 +36,10 @@ install:
		- if defined MSYS2 set PATH=C:\msys64\mingw%BITS%\bin;%PATH%
		- rustc -V
		- cargo -V
		- if defined VCPKG_DEFAULT_TRIPLET git clone https://github.com/Microsoft/vcpkg c:\projects\vcpkg
		- if defined VCPKG_DEFAULT_TRIPLET c:\projects\vcpkg\bootstrap-vcpkg.bat
		- if defined VCPKG_DEFAULT_TRIPLET set VCPKG_ROOT=c:\projects\vcpkg
		- if defined VCPKG_DEFAULT_TRIPLET %VCPKG_ROOT%\vcpkg.exe install openssl

		build: false

openssl-sys/Cargo.toml

+3 −0

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		@@ -18,6 +18,9 @@ libc = "0.2"
		pkg-config = "0.3.9"
		gcc = "0.3.42"

		[target.'cfg(target_env = "msvc")'.build-dependencies]
		vcpkg = "0.2"

		# We don't actually use metadeps for annoying reasons but this is still here for tooling
		[package.metadata.pkg-config]
		openssl = "1.0.1"

openssl-sys/build.rs

+47 −0

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		extern crate pkg_config;
		#[cfg(target_env = "msvc")]
		extern crate vcpkg;
		extern crate gcc;

		use std::collections::HashSet;
		@@ -98,6 +100,7 @@ fn find_openssl_dir(target: &str) -> OsString {
		}

		try_pkg_config();
		try_vcpkg();

		let mut msg = format!("

		@@ -213,6 +216,50 @@ fn try_pkg_config() {
		std::process::exit(0);
		}

		/// Attempt to find OpenSSL through vcpkg.
		///
		/// Note that if this succeeds then the function does not return as vcpkg
		/// should emit all of the cargo metadata that we need.
		#[cfg(target_env = "msvc")]
		fn try_vcpkg() {

		// vcpkg will not emit any metadata if it can not find libraries
		// appropriate for the target triple with the desired linkage.

		let mut lib = vcpkg::Config::new()
		.emit_includes(true)
		.lib_name("libcrypto")
		.lib_name("libssl")
		.probe("openssl");

		if let Err(e) = lib {
		println!("note: vcpkg did not find openssl as libcrypto and libssl : {:?}",
		e);
		lib = vcpkg::Config::new()
		.emit_includes(true)
		.lib_name("libeay32")
		.lib_name("ssleay32")
		.probe("openssl");
		}
		if let Err(e) = lib {
		println!("note: vcpkg did not find openssl as ssleay32 and libeay32: {:?}",
		e);
		return;
		}

		let lib = lib.unwrap();
		validate_headers(&lib.include_paths);

		println!("cargo:rustc-link-lib=user32");
		println!("cargo:rustc-link-lib=gdi32");
		println!("cargo:rustc-link-lib=crypt32");

		std::process::exit(0);
		}

		#[cfg(not(target_env = "msvc"))]
		fn try_vcpkg() {}

		/// Validates the header files found in `include_dir` and then returns the
		/// version string of OpenSSL.
		fn validate_headers(include_dirs: &[PathBuf]) -> Version {