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Don't dynamically generate expando.c

This commit is contained in:
Steven Fackler 2019-02-27 20:02:51 -08:00
parent 25f750c223
commit 2474bce3db
2 changed files with 69 additions and 60 deletions
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67
openssl-sys/build/expando.c Normal file
View File

@ -0,0 +1,67 @@
#include <openssl/opensslv.h>
#include <openssl/opensslconf.h>
#define VERSION2(n, v) RUST_VERSION_##n##_##v
#define VERSION(n, v) VERSION2(n, v)
#ifdef LIBRESSL_VERSION_NUMBER
VERSION(LIBRESSL, LIBRESSL_VERSION_NUMBER)
#else
VERSION(OPENSSL, OPENSSL_VERSION_NUMBER)
#endif
#ifdef OPENSSL_NO_BUF_FREELISTS
RUST_CONF_OPENSSL_NO_BUF_FREELISTS
#endif
#ifdef OPENSSL_NO_COMP
RUST_CONF_OPENSSL_NO_COMP
#endif
#ifdef OPENSSL_NO_EC
RUST_CONF_OPENSSL_NO_EC
#endif
#ifdef OPENSSL_NO_EC2M
RUST_CONF_OPENSSL_NO_EC2M
#endif
#ifdef OPENSSL_NO_ENGINE
RUST_CONF_OPENSSL_NO_ENGINE
#endif
#ifdef OPENSSL_NO_KRB5
RUST_CONF_OPENSSL_NO_KRB5
#endif
#ifdef OPENSSL_NO_NEXTPROTONEG
RUST_CONF_OPENSSL_NO_NEXTPROTONEG
#endif
#ifdef OPENSSL_NO_PSK
RUST_CONF_OPENSSL_NO_PSK
#endif
#ifdef OPENSSL_NO_RFC3779
RUST_CONF_OPENSSL_NO_RFC3779
#endif
#ifdef OPENSSL_NO_SHA
RUST_CONF_OPENSSL_NO_SHA
#endif
#ifdef OPENSSL_NO_SRP
RUST_CONF_OPENSSL_NO_SRP
#endif
#ifdef OPENSSL_NO_SSL3_METHOD
RUST_CONF_OPENSSL_NO_SSL3_METHOD
#endif
#ifdef OPENSSL_NO_TLSEXT
RUST_CONF_OPENSSL_NO_TLSEXT
#endif
#ifdef OPENSSL_NO_STDIO
RUST_CONF_OPENSSL_NO_STDIO
#endif

62
openssl-sys/build/main.rs
View File

@ -8,8 +8,6 @@ extern crate vcpkg;
use std::collections::HashSet;
use std::env;
use std::ffi::OsString;
use std::fs::File;
use std::io::{BufWriter, Write};
use std::path::{Path, PathBuf};
mod cfgs;
@ -18,24 +16,6 @@ mod cfgs;
#[cfg_attr(not(feature = "vendored"), path = "find_normal.rs")]
mod find;
// The set of `OPENSSL_NO_<FOO>`s that we care about.
const DEFINES: &'static [&'static str] = &[
"OPENSSL_NO_BUF_FREELISTS",
"OPENSSL_NO_COMP",
"OPENSSL_NO_EC",
"OPENSSL_NO_EC2M",
"OPENSSL_NO_ENGINE",
"OPENSSL_NO_KRB5",
"OPENSSL_NO_NEXTPROTONEG",
"OPENSSL_NO_PSK",
"OPENSSL_NO_RFC3779",
"OPENSSL_NO_SHA",
"OPENSSL_NO_SRP",
"OPENSSL_NO_SSL3_METHOD",
"OPENSSL_NO_TLSEXT",
"OPENSSL_NO_STDIO",
];
enum Version {
Openssl11x,
Openssl10x,
@ -125,55 +105,17 @@ fn validate_headers(include_dirs: &[PathBuf]) -> Version {
// file of OpenSSL, `opensslconf.h`, and then dump out everything it defines
// as our own #[cfg] directives. That way the `ossl10x.rs` bindings can
// account for compile differences and such.
let mut path = PathBuf::from(env::var_os("OUT_DIR").unwrap());
path.push("expando.c");
let mut file = BufWriter::new(File::create(&path).unwrap());
write!(
file,
"\
#include <openssl/opensslv.h>
#include <openssl/opensslconf.h>
#define VERSION2(n, v) RUST_VERSION_ ## n ## _ ## v
#define VERSION(n, v) VERSION2(n, v)
VERSION(OPENSSL, OPENSSL_VERSION_NUMBER)
#ifdef LIBRESSL_VERSION_NUMBER
VERSION(LIBRESSL, LIBRESSL_VERSION_NUMBER)
#endif
"
)
.unwrap();
for define in DEFINES {
write!(
file,
"\
#ifdef {define}
RUST_CONF_{define}
#endif
",
define = define
)
.unwrap();
}
file.flush().unwrap();
drop(file);
let mut gcc = cc::Build::new();
for include_dir in include_dirs {
gcc.include(include_dir);
}
let expanded = match gcc.file(&path).try_expand() {
let expanded = match gcc.file("build/expando.c").try_expand() {
Ok(expanded) => expanded,
Err(e) => {
panic!(
"
Header expansion error:
{}
{:?}
Failed to find OpenSSL development headers.