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-rw-r--r--src/librustc/middle/trans/debuginfo.rs2
1 files changed, 1 insertions, 1 deletions
diff --git a/src/librustc/middle/trans/debuginfo.rs b/src/librustc/middle/trans/debuginfo.rs
index b640f9ef5af..7600e40edc0 100644
--- a/src/librustc/middle/trans/debuginfo.rs
+++ b/src/librustc/middle/trans/debuginfo.rs
@@ -739,7 +739,7 @@ pub fn finalize(cx: &CrateContext) {
             cx.sess().targ_cfg.os == abi::OsiOS {
             "Dwarf Version".with_c_str(
                 |s| llvm::LLVMRustAddModuleFlag(cx.llmod(), s, 2));
-        } else {
+        } else if cx.sess().targ_cfg.os == abi::OsLinux {
             // FIXME(#13611) this is a kludge fix because the Linux bots have
             //               gdb 7.4 which doesn't understand dwarf4, we should
             //               do something more graceful here.