[llvm] eecd5d0 - [gn build] port 0da172b1766e more

[Nico Weber via llvm-commits]

Author: Nico Weber
Date: 2021-07-12T08:50:18-04:00
New Revision: eecd5d0aa8c3114235ffe9730009470d63910b24

URL: https://github.com/llvm/llvm-project/commit/eecd5d0aa8c3114235ffe9730009470d63910b24
DIFF: https://github.com/llvm/llvm-project/commit/eecd5d0aa8c3114235ffe9730009470d63910b24.diff

LOG: [gn build] port 0da172b1766e more

Added: 
    

Modified: 
    llvm/utils/gn/build/BUILD.gn

Removed: 
    


################################################################################
diff  --git a/llvm/utils/gn/build/BUILD.gn b/llvm/utils/gn/build/BUILD.gn
index a7531fa2b6635..7998cde3712d5 100644
--- a/llvm/utils/gn/build/BUILD.gn
+++ b/llvm/utils/gn/build/BUILD.gn
@@ -392,6 +392,12 @@ config("crt_code") {
     "-gline-tables-only",
     "-fvisibility=hidden",
   ]
+  assert(is_clang, "CRT code is always built with just-built clang")
+  cflags += [
+    "-Werror=thread-safety",
+    "-Werror=thread-safety-reference",
+    "-Werror=thread-safety-beta",
+  ]
 }
 
 config("warn_covered_switch_default") {