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nixpkgs/pkgs/applications/science/logic/elan/0001-dynamically-patchelf-binaries.patch
Sebastian Ullrich b20024dd3a elan: set LEAN_CC to stdenv cc
This ensures that `leanc` understands cc-wrapper vars such as `NIX_LDFLAGS`
2021-12-19 17:27:10 +01:00

36 lines
1.5 KiB
Diff

diff --git a/src/elan-dist/src/component/package.rs b/src/elan-dist/src/component/package.rs
index c51e76d..ae8159e 100644
--- a/src/elan-dist/src/component/package.rs
+++ b/src/elan-dist/src/component/package.rs
@@ -56,6 +56,30 @@ fn unpack_without_first_dir<R: Read>(archive: &mut tar::Archive<R>, path: &Path)
entry
.unpack(&full_path)
.chain_err(|| ErrorKind::ExtractingPackage)?;
+ nix_patch_if_needed(&full_path)?;
+ }
+
+ Ok(())
+}
+
+fn nix_patch_if_needed(dest_path: &Path) -> Result<()> {
+ let is_bin = matches!(dest_path.parent(), Some(p) if p.ends_with("bin"));
+ if is_bin {
+ let _ = ::std::process::Command::new("@patchelf@/bin/patchelf")
+ .arg("--set-interpreter")
+ .arg("@dynamicLinker@")
+ .arg(dest_path)
+ .output();
+ }
+
+ if dest_path.file_name() == Some(::std::ffi::OsStr::new("leanc")) {
+ use std::os::unix::fs::PermissionsExt;
+ let new_path = dest_path.with_extension("orig");
+ ::std::fs::rename(dest_path, &new_path)?;
+ ::std::fs::write(dest_path, format!(r#"#! @shell@
+LEAN_CC="${{LEAN_CC:-@cc@}}" exec -a "$0" {} "$@" -L {}/lib # use bundled libraries, but not bundled compiler that doesn't know about NIX_LDFLAGS
+"#, new_path.to_str().unwrap(), dest_path.parent().unwrap().parent().unwrap().to_str().unwrap()))?;
+ ::std::fs::set_permissions(dest_path, ::std::fs::Permissions::from_mode(0o755))?;
}
Ok(())