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From 6d46e073040d03be4abffc599e11609febecf9fc Mon Sep 17 00:00:00 2001
From: Michel Alexandre Salim <salimma@fedoraproject.org>
Date: Mon, 4 Apr 2022 11:52:40 -0700
Subject: [PATCH] Use system mimalloc if available
When packaging for Fedora, bundled libraries are discouraged:
https://docs.fedoraproject.org/en-US/fesco/Bundled_Software_policy/
Build against the system mimalloc if we detect its header.
Signed-off-by: Michel Alexandre Salim <salimma@fedoraproject.org>
---
libmimalloc-sys/build.rs | 12 +++++++++---
1 file changed, 9 insertions(+), 3 deletions(-)
diff --git a/libmimalloc-sys/build.rs b/libmimalloc-sys/build.rs
index 7cc9379..1afdf18 100644
--- a/libmimalloc-sys/build.rs
+++ b/libmimalloc-sys/build.rs
@@ -1,15 +1,21 @@
use std::env;
+use std::path;
fn main() {
+ let target_os = env::var("CARGO_CFG_TARGET_OS").expect("target_os not defined!");
+ let target_family = env::var("CARGO_CFG_TARGET_FAMILY").expect("target_family not defined!");
+
+ // use system mimalloc if available
+ if target_family == "unix" && path::Path::new("/usr/include/mimalloc.h").exists() {
+ return
+ }
+
let mut build = cc::Build::new();
build.include("c_src/mimalloc/include");
build.include("c_src/mimalloc/src");
build.file("c_src/mimalloc/src/static.c");
- let target_os = env::var("CARGO_CFG_TARGET_OS").expect("target_os not defined!");
- let target_family = env::var("CARGO_CFG_TARGET_FAMILY").expect("target_family not defined!");
-
if env::var_os("CARGO_FEATURE_OVERRIDE").is_some() {
// Overriding malloc is only available on windows in shared mode, but we
// only ever build a static lib.
--
2.35.1
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