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From b3282b301096253a11b1f887f915d0a2a2183597 Mon Sep 17 00:00:00 2001
From: Frank de Brabander <debrabander@gmail.com>
Date: Thu, 8 Aug 2024 08:04:48 +0200
Subject: [PATCH] Dont embed RUSTFLAGS in final binary
Upstream-Status: Backport [https://github.com/pydantic/pydantic-core/commit/e07c41b3bad75948201a2201387225694c2fb501]
---
build.rs | 9 +++++++++
src/lib.rs | 5 ++++-
2 files changed, 13 insertions(+), 1 deletion(-)
diff --git a/build.rs b/build.rs
index 7f59e1f..7fe6490 100644
--- a/build.rs
+++ b/build.rs
@@ -35,6 +35,15 @@ fn main() {
if let Some(true) = version_check::supports_feature("coverage_attribute") {
println!("cargo:rustc-cfg=has_coverage_attribute");
}
+
+ if std::env::var("RUSTFLAGS")
+ .unwrap_or_default()
+ .contains("-Cprofile-use=")
+ {
+ println!("cargo:rustc-cfg=specified_profile_use");
+ }
+ println!("cargo:rustc-check-cfg=cfg(specified_profile_use)");
+
generate_self_schema();
println!("cargo:rustc-env=PROFILE={}", std::env::var("PROFILE").unwrap());
}
diff --git a/src/lib.rs b/src/lib.rs
index d55e836..206a7a1 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -111,7 +111,10 @@ pub fn build_info() -> String {
format!(
"profile={} pgo={}",
env!("PROFILE"),
- option_env!("RUSTFLAGS").unwrap_or("").contains("-Cprofile-use="),
+ // We use a `cfg!` here not `env!`/`option_env!` as those would
+ // embed `RUSTFLAGS` into the generated binary which causes problems
+ // with reproducable builds.
+ cfg!(specified_profile_use),
)
}
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