diff options
| -rw-r--r-- | src/libprofiler_builtins/build.rs | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/src/libprofiler_builtins/build.rs b/src/libprofiler_builtins/build.rs index ff52a03d9dd..331edb73d6d 100644 --- a/src/libprofiler_builtins/build.rs +++ b/src/libprofiler_builtins/build.rs @@ -44,6 +44,19 @@ fn main() { cfg.define("COMPILER_RT_HAS_UNAME", Some("1")); } + // Assume that the Unixes we are building this for have fnctl() available + if env::var_os("CARGO_CFG_UNIX").is_some() { + cfg.define("COMPILER_RT_HAS_FCNTL_LCK", Some("1")); + } + + // This should be a pretty good heuristic for when to set + // COMPILER_RT_HAS_ATOMICS + if env::var_os("CARGO_CFG_TARGET_HAS_ATOMIC").map(|features| { + features.to_string_lossy().to_lowercase().contains("cas") + }).unwrap_or(false) { + cfg.define("COMPILER_RT_HAS_ATOMICS", Some("1")); + } + // The source for `compiler-rt` comes from the `compiler-builtins` crate, so // load our env var set by cargo to find the source code. let root = env::var_os("DEP_COMPILER_RT_COMPILER_RT").unwrap(); |