Lock accesses to the LLVM TargetRegistry.

Author: nlewycky

Cargo.toml

@@ -63,6 +63,7 @@ libc = "0.2"
 llvm-sys = "80.1"
 regex = "1"
 static-alloc = { version = "0.1", optional = true }
+lazy_static = "1.3.0"
 
 [badges]
 travis-ci = { repository = "TheDan64/inkwell" }

src/lib.rs

@@ -16,6 +16,8 @@ extern crate libc;
 extern crate llvm_sys;
 #[macro_use]
 extern crate inkwell_internal_macros;
+#[macro_use]
+extern crate lazy_static;
 
 #[macro_use]
 pub mod support;