diff options
Diffstat (limited to 'build.rs')
| -rw-r--r-- | build.rs | 15 |
1 files changed, 10 insertions, 5 deletions
@@ -5,18 +5,18 @@ use std::str; fn main() { let rustc_minor_ver = rustc_minor_version().expect("Failed to get rustc version"); - let rustc_dep_of_std = - std::env::var("CARGO_FEATURE_RUSTC_DEP_OF_STD").is_ok(); - let align_cargo_feature = std::env::var("CARGO_FEATURE_ALIGN").is_ok(); + let rustc_dep_of_std = env::var("CARGO_FEATURE_RUSTC_DEP_OF_STD").is_ok(); + let align_cargo_feature = env::var("CARGO_FEATURE_ALIGN").is_ok(); + let unstable_cargo_feature = env::var("CARGO_FEATURE_UNSTABLE").is_ok(); - if std::env::var("CARGO_FEATURE_USE_STD").is_ok() { + if env::var("CARGO_FEATURE_USE_STD").is_ok() { println!( "cargo:warning=\"libc's use_std cargo feature is deprecated since libc 0.2.55; \ please consider using the `std` cargo feature instead\"" ); } - if std::env::var("LIBC_CI").is_ok() { + if env::var("LIBC_CI").is_ok() { if let Some(12) = which_freebsd() { println!("cargo:rustc-cfg=freebsd12"); } @@ -53,6 +53,11 @@ fn main() { if rustc_minor_ver >= 33 || rustc_dep_of_std { println!("cargo:rustc-cfg=libc_packedN"); } + + // #[thread_local] is currently unstable + if unstable_cargo_feature || rustc_dep_of_std { + println!("cargo:rustc-cfg=libc_thread_local"); + } } fn rustc_minor_version() -> Option<u32> { |