about summary refs log tree commit diff
path: root/src/liballoc_jemalloc/lib.rs
diff options
context:
space:
mode:
authorAlex Crichton <alex@alexcrichton.com>2016-01-21 15:36:25 -0800
committerAlex Crichton <alex@alexcrichton.com>2016-02-11 11:12:32 -0800
commiteac0a8bc3070e45047fff57e7b024a059289a36d (patch)
treecbcaa9dc371f2b11fe2e9b9d3ee7a3f7a9cfdb8e /src/liballoc_jemalloc/lib.rs
parent4da4970767ae8fc2e3b6d0c280312bb0f4efeed6 (diff)
downloadrust-eac0a8bc3070e45047fff57e7b024a059289a36d.tar.gz
rust-eac0a8bc3070e45047fff57e7b024a059289a36d.zip
bootstrap: Add directives to not double-link libs
Have all Cargo-built crates pass `--cfg cargobuild` and then add appropriate
`#[cfg]` definitions to all crates to avoid linking anything if this is passed.
This should help allow libstd to compile with both the makefiles and with Cargo.
Diffstat (limited to 'src/liballoc_jemalloc/lib.rs')
-rw-r--r--src/liballoc_jemalloc/lib.rs5
1 files changed, 4 insertions, 1 deletions
diff --git a/src/liballoc_jemalloc/lib.rs b/src/liballoc_jemalloc/lib.rs
index d02e9e4ba13..2c46e37ac32 100644
--- a/src/liballoc_jemalloc/lib.rs
+++ b/src/liballoc_jemalloc/lib.rs
@@ -38,7 +38,10 @@ use libc::{c_int, c_void, size_t};
                not(target_os = "android"),
                not(target_env = "musl")),
            link(name = "pthread"))]
-extern "C" {
+#[cfg(not(cargobuild))]
+extern {}
+
+extern {
     fn je_mallocx(size: size_t, flags: c_int) -> *mut c_void;
     fn je_rallocx(ptr: *mut c_void, size: size_t, flags: c_int) -> *mut c_void;
     fn je_xallocx(ptr: *mut c_void, size: size_t, extra: size_t, flags: c_int) -> size_t;