diff options
| -rw-r--r-- | src/libstd/build.rs | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/src/libstd/build.rs b/src/libstd/build.rs index 26d93f97e69..016e7adb4c9 100644 --- a/src/libstd/build.rs +++ b/src/libstd/build.rs @@ -104,7 +104,8 @@ fn build_libbacktrace(target: &str) -> Result<(), ()> { } else { build.file("../libbacktrace/elf.c"); - if target.contains("64") { + let pointer_width = env::var("CARGO_CFG_TARGET_POINTER_WIDTH").unwrap(); + if pointer_width == "64" { build.define("BACKTRACE_ELF_SIZE", "64"); } else { build.define("BACKTRACE_ELF_SIZE", "32"); |