1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
|
use std::error::Error;
fn main() -> Result<(), Box<dyn Error>> {
if build::cargo_cfg_windows() && build::cargo_feature("windows_raw_dylib") {
return Ok(()); // neccessary linker args set in lib.rs
}
#[cfg(windows)]
if try_registry() {
return Ok(());
}
system_deps::Config::new().probe()?;
Ok(())
}
#[cfg(windows)]
fn try_registry() -> bool {
use std::{ffi::OsString, path::PathBuf};
use winreg::{enums::*, RegKey};
fn try_key(path: &str) -> bool {
let hklm = RegKey::predef(HKEY_LOCAL_MACHINE);
let Ok(key) = hklm
.open_subkey_with_flags(path, KEY_WOW64_32KEY | KEY_READ)
.inspect_err(|e| eprintln!("unable to retrieve install location: {e}"))
else {
return false;
};
let Ok(root) = key
.get_value::<OsString, _>("Install Directory")
.map(PathBuf::from)
.inspect_err(|e| eprintln!("unable to retrieve install location: {e}"))
else {
return false;
};
println!("detected install via registry: {}", root.display());
build::rustc_link_search(root.join("lib"));
build::rustc_link_lib("dylib:+verbatim=libgpg-error.imp");
true
}
if !build::cargo_cfg_windows() {
eprintln!("cross compiling. disabling registry detection.");
return false;
}
[r"SOFTWARE\Gpg4win", r"SOFTWARE\GnuPG"]
.iter()
.any(|s| try_key(s))
}
|
