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Always dump openssl confs

This commit is contained in:
Steven Fackler 2016-11-04 21:15:07 -07:00
parent 91fd58b4c2
commit fb9420fc91
1 changed files with 44 additions and 46 deletions
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90
openssl-sys/build.rs
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@ -247,56 +247,54 @@ The build is now aborting due to this version mismatch.
// 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.
if version_text.contains("0x1000") {
let mut conf_header = String::new();
let mut include = include_dirs.iter()
.map(|p| p.join("openssl/opensslconf.h"))
.filter(|p| p.exists());
let mut f = match include.next() {
Some(f) => File::open(f).unwrap(),
None => {
// It's been seen that on linux the include dir printed out by
// `pkg-config` doesn't actually have opensslconf.h. Instead
// it's in an architecture-specific include directory.
//
// Try to detect that case to see if it exists.
let mut libdirs = libdirs.iter().map(|p| {
p.iter()
.map(|p| if p == "lib" {"include".as_ref()} else {p})
.collect::<PathBuf>()
}).map(|p| {
p.join("openssl/opensslconf.h")
}).filter(|p| p.exists());
match libdirs.next() {
Some(f) => File::open(f).unwrap(),
None => {
panic!("failed to open header file at
`openssl/opensslconf.h` to learn about \
OpenSSL's version number, looked \
inside:\n\n{:#?}\n\n",
include_dirs);
}
let mut conf_header = String::new();
let mut include = include_dirs.iter()
.map(|p| p.join("openssl/opensslconf.h"))
.filter(|p| p.exists());
let mut f = match include.next() {
Some(f) => File::open(f).unwrap(),
None => {
// It's been seen that on linux the include dir printed out by
// `pkg-config` doesn't actually have opensslconf.h. Instead
// it's in an architecture-specific include directory.
//
// Try to detect that case to see if it exists.
let mut libdirs = libdirs.iter().map(|p| {
p.iter()
.map(|p| if p == "lib" {"include".as_ref()} else {p})
.collect::<PathBuf>()
}).map(|p| {
p.join("openssl/opensslconf.h")
}).filter(|p| p.exists());
match libdirs.next() {
Some(f) => File::open(f).unwrap(),
None => {
panic!("failed to open header file at
`openssl/opensslconf.h` to learn about \
OpenSSL's version number, looked \
inside:\n\n{:#?}\n\n",
include_dirs);
}
}
};
f.read_to_string(&mut conf_header).unwrap();
// Look for `#define OPENSSL_FOO`, print out everything as our own
// #[cfg] flag.
let mut vars = vec![];
for line in conf_header.lines() {
let i = match line.find("define ") {
Some(i) => i,
None => continue,
};
let var = line[i + "define ".len()..].trim();
if var.starts_with("OPENSSL") && !var.contains(" ") {
println!("cargo:rustc-cfg=osslconf=\"{}\"", var);
vars.push(var);
}
}
println!("cargo:conf={}", vars.join(","));
};
f.read_to_string(&mut conf_header).unwrap();
// Look for `#define OPENSSL_FOO`, print out everything as our own
// #[cfg] flag.
let mut vars = vec![];
for line in conf_header.lines() {
let i = match line.find("define ") {
Some(i) => i,
None => continue,
};
let var = line[i + "define ".len()..].trim();
if var.starts_with("OPENSSL") && !var.contains(" ") {
println!("cargo:rustc-cfg=osslconf=\"{}\"", var);
vars.push(var);
}
}
println!("cargo:conf={}", vars.join(","));
return version_text.to_string()
}