]> git.lizzy.rs Git - rust.git/blob - library/unwind/build.rs
Auto merge of #96889 - Aaron1011:place-ref-remove, r=compiler-errors
[rust.git] / library / unwind / build.rs
1 use std::env;
2
3 fn main() {
4     println!("cargo:rerun-if-changed=build.rs");
5     let target = env::var("TARGET").expect("TARGET was not set");
6
7     if target.contains("android") {
8         let build = cc::Build::new();
9
10         // Since ndk r23 beta 3 `libgcc` was replaced with `libunwind` thus
11         // check if we have `libunwind` available and if so use it. Otherwise
12         // fall back to `libgcc` to support older ndk versions.
13         let has_unwind = build.is_flag_supported("-lunwind").expect("Unable to invoke compiler");
14
15         if has_unwind {
16             println!("cargo:rustc-link-lib=unwind");
17         } else {
18             println!("cargo:rustc-link-lib=gcc");
19         }
20
21         // Android's unwinding library depends on dl_iterate_phdr in `libdl`.
22         println!("cargo:rustc-link-lib=dl");
23     } else if target.contains("freebsd") {
24         println!("cargo:rustc-link-lib=gcc_s");
25     } else if target.contains("netbsd") {
26         println!("cargo:rustc-link-lib=gcc_s");
27     } else if target.contains("openbsd") {
28         if target.contains("sparc64") {
29             println!("cargo:rustc-link-lib=gcc");
30         } else {
31             println!("cargo:rustc-link-lib=c++abi");
32         }
33     } else if target.contains("solaris") {
34         println!("cargo:rustc-link-lib=gcc_s");
35     } else if target.contains("illumos") {
36         println!("cargo:rustc-link-lib=gcc_s");
37     } else if target.contains("dragonfly") {
38         println!("cargo:rustc-link-lib=gcc_pic");
39     } else if target.contains("pc-windows-gnu") {
40         // This is handled in the target spec with late_link_args_[static|dynamic]
41     } else if target.contains("uwp-windows-gnu") {
42         println!("cargo:rustc-link-lib=unwind");
43     } else if target.contains("haiku") {
44         println!("cargo:rustc-link-lib=gcc_s");
45     } else if target.contains("redox") {
46         // redox is handled in lib.rs
47     }
48 }