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Provide a tailored error message on Linux 

I just ran into a case where I installed OpenSSL in a docker container but I
forgot to install pkg-config. Right now openssl-sys relies on pkg-config, so
print out a nice error about this.
This commit is contained in:
Alex Crichton 2016-11-05 22:55:25 -07:00
parent 2cde422d02
commit c2bf8acad8
1 changed files with 13 additions and 0 deletions
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13
openssl-sys/build.rs
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@ -6,6 +6,7 @@ use std::ffi::OsString;
use std::fs::File;
use std::io::Read;
use std::path::{Path, PathBuf};
use std::process::Command;
fn main() {
let target = env::var("TARGET").unwrap();
@ -96,6 +97,18 @@ install the `openssl` package, or as a maintainer you can use the openssl-sys
Unfortunately though the compile cannot continue, so aborting.
"));
}
}
if host.contains("unknown-linux") && target.contains("unknown-linux-gnu") {
if Command::new("pkg-config").output().is_err() {
msg.push_str(&format!("
It looks like you're compiling on Linux and also targeting Linux. Currently this
requires the `pkg-config` utility to find OpenSSL but unfortunately `pkg-config`
could not be found. If you have OpenSSL installed you can likely fix this by
installing `pkg-config`.
"));
}
}